Construction Measuring Tools

Construction Levels

For years, the spirit and screeding level industry in North America has lacked meaningful ...

About Keson LLC Measuring Tools

Keson LLC - About Our Measuring Tools

Keson LLC is a professional measuring and marking tools manufacturer specializing in measuring wheels, tape measures, chalk lines, construction levels, and marking paint for contractors and tradespeople. Founded in 1968 by Roy Nosek and now led by third-generation family ownership, this Aurora, Illinois-based company proudly manufactures its products in the USA, including being America's only marking chalk made in USA producer. From pioneering fiberglass measuring tapes to developing innovative Kesonite professional grade measuring wheels and precision steel tape measures, Keson delivers construction measuring equipment engineered for demanding job sites. The company's 500+ SKU catalog encompasses surveying measuring wheels like the bestselling RoadRunner series, ProChalk construction marking supplies with five permanence levels, Ultra-Mark inverted spray paint, and SOLA-partnered professional construction levels featuring patented FOCUS vial technology. Distributed exclusively through authorized dealers across North America, Keson contractor measuring tools combine traditional craftsmanship with modern innovation, following founder Roy Nosek's principle: "If a job is worth doing, it's worth doing right." Whether professionals need long tape measures for construction projects, pocket tape measures for contractors, durable chalk line reels, or precision professional marking tools for surveying, Keson's made in USA tools deliver uncompromising accuracy and durability backed by limited lifetime warranties and five decades of American manufacturing excellence in construction measuring and marking equipment.

Legal Name: Keson LLC
Alternate Name: Keson, Keson Industries
Founding Date: 1968
Founding Location: Berwyn, Illinois, USA
Business Address: 810 N Commerce Street, Aurora, IL 60504, USA
NAICS Code: 339 (Manufacturing)
Area Served: Worldwide
Slogan: "Make Your Mark" / "If a job is worth doing, it's worth doing right"

Keson LLC: Founders & Leadership

Name	Role
Roy Nosek	Founder (1968)
Nosek Family	Third Generation Owners (Keson)
Scheyer Family	Third Generation Owners (SOLA)

Keson LLC: Key Team Members

Name	Job Title	Description
Aaron Nosek	President & Chief Executive Officer	Leading the company's strategic direction and operations
Jude Nosek	Marketing Director	Overseeing marketing strategy and brand development
Sarah Durbin	Customer Service	Head of Customer Service
Dave Nosek	Human Resources	Head of Human Resources

Keson LLC: Measuring Tools Product Catalog

Product Category	Sub-Category	Description
Construction Levels	Magnetic Box Beam Levels	Keson's magnetic box beam levels combine precision engineering with powerful rare-earth magnets for secure attachment to ferrous metal surfaces. Manufactured with SOLA's industry-leading FOCUS vial technology, these professional-grade levels deliver superior accuracy and readability even in low-light conditions or from a distance. The robust box beam construction ensures exceptional durability on demanding job sites while maintaining the lightweight portability contractors need. Each level is calibrated to exacting standards, making them indispensable for metalworkers, HVAC technicians, and structural professionals who demand both magnetic convenience and uncompromising accuracy.
	Box Beam Levels	Keson's box beam levels represent the perfect balance of professional quality and value engineering. Built with precision-milled aluminum frames and featuring SOLA FOCUS vial technology, these mid-tier levels deliver exceptional accuracy that rivals premium models. The reinforced box beam design provides superior rigidity and stability across all lengths, from compact 24-inch models to extended 96-inch versions. With rubber end caps for shock absorption and multiple hand grips for versatile positioning, these levels are engineered for contractors who refuse to compromise on accuracy but appreciate intelligent value. Backed by Keson's reputation for reliability, they're built to withstand years of professional use.
	Digital Box Beam Levels	Keson's digital box beam levels merge traditional leveling precision with advanced electronic measurement technology. These innovative tools feature large LCD displays that provide exact angle measurements in degrees, percent grade, or pitch, with accuracy to 0.1 degrees. The digital readouts are invaluable for applications requiring precise slope measurements, roof pitches, or drainage calculations. Built on the same rugged box beam platform as Keson's traditional levels, they incorporate both analog FOCUS vials for quick visual reference and digital sensors for precise angle documentation. Audio alerts, hold functions, and calibration capabilities make these levels essential for modern contractors who need to document measurements or work to exacting specifications.
	I-Beam Levels	Keson's I-beam levels represent the gold standard in professional leveling tools, offering unparalleled strength and rigidity through their structural I-beam profile. This classic design has been the choice of masonry and concrete professionals for decades, providing exceptional stiffness that prevents flexing even under heavy use. The wide, stable base sits securely on uneven surfaces, while the structural integrity ensures accuracy is maintained across the full length. Enhanced with SOLA's precision vials, these levels deliver readings you can trust for critical layout work, foundation setting, and structural installation. The milled surfaces and premium construction make them heirloom-quality tools that professional tradespeople pass down through generations.
	Torpedo Levels/Specialty Levels	Keson's torpedo and specialty levels are engineered for precision work in confined spaces where full-size levels cannot reach. These compact powerhouses feature the same FOCUS vial technology as larger levels, delivering professional-grade accuracy in a pocket-sized format. The torpedo design includes multiple vial orientations for plumb, level, and 45-degree angle measurements, making them indispensable for electricians, plumbers, and finish carpenters. Magnetic models attach securely to conduit, pipe, or steel studs for hands-free operation. Specialty variations include post levels, line levels, and cross-check levels designed for specific trade applications. Despite their diminutive size, these levels maintain the durability and accuracy standards that define the Keson brand.
	Screeding Levels	Keson's screeding levels are purpose-built for concrete finishers and masonry professionals who demand precision over expansive surfaces. Available in extended lengths up to 16 feet, these specialized levels feature reinforced construction that resists warping and maintains accuracy across their entire span. The lightweight yet rigid design reduces fatigue during extended screeding operations, while precision vials ensure perfectly level surfaces for foundation pours, floor slabs, and large-scale masonry work. Soft-grip handles provide secure control during concrete placement, and protective end caps withstand the rigors of concrete work. These levels represent Keson's understanding that different trades require specialized tools engineered for their specific applications.
	Sola Levels	SOLA levels represent the pinnacle of European precision engineering, bringing 75 years of Austrian innovation to North American markets through Keson's partnership. These premium levels feature the revolutionary FOCUS vial technology with its patented dual-lens system that magnifies the bubble and provides crystal-clear readings from any angle or lighting condition. Milled from single-piece aluminum extrusions and finished with aerospace-grade anodizing, SOLA levels offer unmatched accuracy of 0.5mm per meter. Each level undergoes rigorous quality control in Austria, ensuring every vial is perfectly calibrated. For professionals who demand absolute precision—surveyors, finish carpenters, and master craftsmen—SOLA levels are the uncompromising choice, representing the best-of-the-best that money can buy in professional leveling tools.
Measuring Wheels	Metal Measuring Wheels	Keson's metal measuring wheels represent the professional standard for heavy-duty distance measurement, manufactured in Aurora, Illinois with pride and precision. These workhorses feature powder-coated steel frames engineered to withstand years of rugged field use, equipped with the industry's sturdiest and most reliable mechanical counters. The counter positioning protects this critical component from impacts while providing clear readability. Built with 99.7% accuracy on flat surfaces and backed by Keson's limited lifetime warranty, these wheels are the choice of surveyors, contractors, and utility professionals who measure thousands of feet daily. Every wheel includes reflective safety elements for roadside work, telescoping handles for user comfort, and a pistol-grip reset mechanism for efficient operation. Assembled and tested in the USA, they embody Keson's commitment to manufacturing excellence.
	Roadrunner Large Measuring Wheels	The RoadRunner large measuring wheels are Keson's bestselling distance measurement solution, engineered for professionals who cover extensive ground daily. Featuring 12.5-inch diameter wheels with wide polyurethane tires, these models roll smoothly over rough terrain, grass, and uneven surfaces while maintaining accuracy. The lightweight yet durable frame collapses quickly for transport and storage, while the ergonomic design reduces operator fatigue during long measurement sessions. These wheels excel in applications ranging from asphalt estimation to utility right-of-way documentation. Manufactured with Keson's proprietary Kesonite handles and precision counters, RoadRunner wheels deliver the reliability that has made them the go-to choice for surveyors, landscape contractors, and civil engineers across North America.
	Roadrunner Small Measuring Wheels	Keson's RoadRunner small measuring wheels bring professional accuracy to compact, portable packages perfect for interior measurements, tight spaces, and applications where maneuverability trumps rough-terrain capability. These nimble wheels feature smaller diameter designs that excel at measuring perimeters, interior floor plans, and detailed site layouts. The compact frames telescope down for easy storage in vehicles or tool bags, while maintaining the same accuracy standards and reliable counters found in larger models. Interior contractors, property managers, and facility professionals appreciate how these wheels navigate doorways, corridors, and confined spaces that would challenge larger models. Despite their size, they're built with the same quality materials and backed by the same warranty as Keson's full-size professional wheels.
	Paint Applicators	Keson's paint applicator wheels ingeniously combine distance measurement with line marking capability, creating a versatile tool for layout and marking operations. These innovative wheels feature integrated paint reservoirs and application mechanisms that dispense marking paint as you measure, perfect for parking lot striping, athletic field layout, or utility marking. The wheels maintain the same measurement accuracy as standard models while adding the ability to simultaneously mark measured distances. This dual functionality eliminates the need to measure once and mark separately, dramatically improving efficiency for contractors, grounds crews, and survey teams. Compatible with Keson's Ultra-Mark inverted spray paint, these wheels represent the kind of practical innovation that defines Keson's problem-solving approach to tool design.
	Top Reading, Center-Line Wheels	Keson's top-reading center-line measuring wheels solve a critical usability challenge by positioning the counter at the top of the handle for effortless reading without bending or awkward viewing angles. This ergonomic innovation reduces neck and back strain during extended measurement sessions while improving accuracy by allowing operators to maintain focus on terrain ahead. The center-line design ensures the measurement path follows a true straight line, critical for precision layout work. These wheels are particularly valued by professionals who measure continuously throughout the day—estimators, paving contractors, and site surveyors. Combined with Keson's signature durability and accuracy, the top-reading design represents thoughtful engineering that prioritizes user experience without compromising professional performance.
Long Tape Measures	Steel Long Tape Measures	Keson's steel long tape measures represent the ultimate in precision measurement for professional layout work, manufactured to exacting standards that meet the rigorous demands of surveying, engineering, and commercial construction. These tapes feature corrosion-resistant steel blades that resist breakage under field tension, with graduations permanently printed to prevent wear over time. Available in lengths from 50 to 500 feet, they're housed in durable cases with high-speed 3X rewind mechanisms or standard rewind systems depending on the model. Double-riveted cases, metal-reinforced handles, and shovel-style rubber grips ensure longevity and user comfort during extensive layout sessions. Multiple graduation options, zero-point configurations, and blade attachments accommodate diverse professional applications.
	Fiberglass Long Tape Measures	Keson revolutionized the American measurement industry in 1968 when Roy Nosek introduced the first fiberglass measuring tapes to the U.S. market, and the company has remained the leader in fiberglass tape technology ever since. These non-conductive tapes are essential safety tools for electrical contractors, utility workers, and anyone measuring near energized equipment or overhead power lines. The reinforced fiberglass blades resist stretching, won't rust, and maintain accuracy in harsh environmental conditions that would degrade steel or cloth tapes. Available in lengths up to 300 feet, these tapes feature open-reel designs or enclosed housings depending on application needs. High-visibility blade colors with bold graduation markings ensure readability in any lighting condition. For over 55 years, Keson has perfected fiberglass tape manufacturing, making them the trusted choice when safety and accuracy cannot be compromised.
Short Tape Measures	Autolock	Keson's Autolock pocket tape measures feature innovative blade-locking technology that automatically engages when the blade is extended, eliminating the need to manually activate a lock mechanism. This hands-free convenience allows contractors to maintain focus on their work while the blade stays firmly in position for accurate measurements. The automatic engagement provides positive lock-up that won't slip during critical measurements, yet releases smoothly with a simple button press. Built with high-impact ABS housings, nylon-coated blades that resist abrasion, and reinforced belt clips, these tapes combine convenience with the durability that professional tradespeople demand. The autolock feature is particularly valued by finish carpenters, cabinetmakers, and trim installers who need both hands free for positioning materials while maintaining precise measurements.
	Ultra Bright Blade	Keson's Ultra Bright Blade tape measures solve the perennial challenge of reading measurements in low-light conditions—crawl spaces, attics, mechanical rooms, and early morning or evening job sites. These innovative tapes feature high-contrast blade coatings with bold, oversized numerals that remain legible even in dim lighting without requiring supplemental illumination. The bright background reflects available light while the large, crisp numbers reduce eye strain and measurement errors. This visibility enhancement doesn't compromise durability—the blades still feature protective nylon coating, robust end hooks, and the same standout length as standard professional tapes. Electricians, HVAC technicians, and renovation contractors particularly appreciate how these tapes eliminate the need to juggle flashlights while measuring, improving both safety and efficiency in challenging work environments.
	Wide Blade	Keson's wide blade tape measures feature 1-3/16 inch blades that provide exceptional standout—the distance the blade extends without bending or collapsing. This enhanced rigidity allows contractors to take measurements across greater spans without assistance, particularly valuable for solo workers measuring ceiling heights, door openings, or long horizontal runs. The wider format also accommodates bigger, bolder graduation markings that improve readability at a distance, reducing measurement errors and eye strain. The additional blade width increases structural stiffness without adding significant weight, striking the perfect balance between standout performance and portability. Framing contractors, drywall installers, and general contractors favor these tapes for their ability to span difficult measurement situations single-handedly while maintaining the accuracy and durability expected from professional-grade Keson tools.
	Economy Series	Keson's Economy Series tape measures deliver reliable measurement performance at budget-friendly price points, perfect for applications where cost considerations matter but accuracy cannot be compromised. These value-engineered tapes maintain essential professional features—nylon-coated blades, reliable locking mechanisms, and reinforced end hooks—while streamlining construction to reduce cost. They're ideal for general contractors equipping crews, property managers maintaining facility toolkits, or homeowners who want contractor-quality tools without premium pricing. Despite their economical positioning, these tapes carry the Keson name and meet the company's standards for accuracy and functionality. They prove that professional performance doesn't always require premium pricing, reflecting Keson's commitment to making quality measuring tools accessible to all who need them.
	Magnetic Tip	Keson's magnetic tip tape measures incorporate powerful rare-earth magnets into the end hook, creating secure attachment to any ferrous metal surface. This magnetic capability transforms these tapes into hands-free measurement tools when working with steel studs, metal ductwork, machinery, or structural steel. The magnetic grip is strong enough to support the tape's weight on vertical surfaces or overhead applications, freeing both hands for marking, cutting, or positioning materials. This feature is invaluable for HVAC installers, metal building erectors, and mechanical contractors who frequently measure metal components. The magnetic end hooks maintain the same durability and true-zero accuracy as standard hooks, with the added benefit of virtually eliminating the need for a second person to hold the tape during metal fabrication or installation tasks.
	Toggle Series	Keson's Toggle Series tape measures feature distinctive toggle-style blade locks that provide positive engagement with simple thumb operation. The ergonomic toggle mechanism offers tactile feedback and secure locking without the fumbling sometimes associated with sliding button locks. These tapes come in high-visibility case colors that stand out on crowded job sites, reducing the likelihood of leaving them behind or having them borrowed permanently. The nylon-coated blades resist abrasion and moisture while maintaining crisp, readable graduation marks throughout years of service. Toggle Series tapes combine practical functionality with the durability standards that define professional-grade Keson products, making them favorites among contractors who appreciate straightforward, reliable tools that perform consistently day after day.
	Professional	Keson's Professional Series tape measures represent the pinnacle of pocket tape design, engineered for serious tradespeople who depend on their measurement tools for their livelihood. These premium tapes feature high-impact ABS housings with full rubber overmold grips that provide secure handling even with gloved or wet hands. The nylon-coated blades are heat-treated for maximum durability, featuring bold graduation marks that remain legible after years of hard use. Precision-engineered internal springs ensure smooth blade retraction and extended service life, while reinforced belt clips and impact-resistant designs withstand the punishment of professional job sites. Every detail—from the true-zero end hooks to the positive-lock mechanisms—reflects Keson's understanding of what professional contractors need. Backed by limited lifetime warranties, Professional Series tapes are investments in measurement accuracy that pay dividends in reduced errors and increased efficiency.
Specialty Measuring	Pocket Tape Measures	Keson's compact pocket tape measures are engineered for ultra-portability without sacrificing measurement accuracy, perfect for professionals who need measurement capability in the tightest spaces. These miniature tapes fit easily in shirt pockets, tool pouches, or even wallet compartments, ensuring measurement capability is always at hand. Despite their diminutive size, they feature the same quality construction as larger tapes—positive blade locks, durable housings, and clearly marked graduations. They're particularly favored by electricians, plumbers, and inspectors who need to verify measurements in confined areas like electrical panels, under sinks, or inside equipment enclosures. The compact format also makes them ideal as backup tapes carried in vehicles or toolboxes, providing measurement insurance when primary tools are unavailable.
	Wood Rulers	Keson's wood rulers honor traditional craftsmanship while serving modern measurement needs, manufactured from select hardwoods with precision-printed graduations that won't fade or wear. These classic tools feature brass-tipped ends for durability and hang holes for convenient storage, combining timeless aesthetics with practical functionality. The rigid wood construction provides a stable straightedge for drawing layout lines, while the natural material won't scratch delicate surfaces like metal rulers might. Available in standard 36-inch yardstick format and various metric configurations, these rulers are favorites of educators, architects, graphic designers, and woodworkers who appreciate tools that connect today's work with historical crafting traditions. Each ruler is finished with protective coatings that resist moisture and handling wear, ensuring decades of reliable service.
	Depth Gauges	Keson's depth gauges are specialized measuring instruments designed for accurate depth measurement in applications where standard tapes prove awkward or imprecise. These tools feature sliding scales with locking mechanisms that capture exact depth measurements from holes, trenches, tanks, or any application requiring vertical measurement from an opening. The rigid construction ensures the gauge maintains perpendicular orientation for true depth readings, eliminating the measurement errors that occur when flexible tapes angle or bend. Wide base flanges rest securely on the surface being measured from, providing stable reference points. These gauges are essential tools for plumbers measuring drain depths, concrete contractors checking footing excavations, and manufacturing professionals verifying bore depths. The permanently marked scales resist wear, ensuring measurement accuracy throughout years of professional use.
	Surveyor's Measuring Rope	Keson's surveyor's measuring rope provides rugged distance measurement capability for rough terrain, agricultural applications, and situations where traditional measuring tools are impractical. This heavy-duty braided rope features permanently attached markers at regular intervals, creating a flexible measuring system that conforms to ground contours, wraps around irregular objects, or measures curved paths. The durable synthetic construction resists rot, moisture, and UV degradation while maintaining dimensional stability under tension. Unlike rigid tapes or wheels, measuring rope can be dragged through brush, across uneven ground, or through water without damage. It's the measurement tool of choice for landscape contractors establishing property boundaries, farmers measuring field dimensions, and outdoor recreation professionals laying out courses or events. The rope's flexibility makes it ideal for measuring tasks that would destroy conventional measuring tools.
	Diameter Tape Measures	Keson's diameter tape measures are ingeniously engineered to measure circular object diameters directly, eliminating the mathematical conversion from circumference measurements. These specialized tapes feature dual scales—one side reads circumference while the other automatically displays diameter through π-based graduations. This direct-reading capability prevents calculation errors and saves time when measuring pipes, trees, columns, or any cylindrical object. The flexible steel or fiberglass blades conform perfectly to curved surfaces, while the accurate graduation ensures precision for applications requiring exact diameter measurements. These tapes are indispensable for foresters conducting timber cruising, utility workers sizing conduit, and manufacturing professionals verifying shaft or tube diameters. The ability to read diameter directly from circumference measurement represents the kind of practical innovation that defines Keson's approach to solving real-world measurement challenges.
	Pocket Rods	Keson's pocket rods are compact elevation measuring tools that combine the portability of a pocket tape with the vertical measurement capabilities of a traditional surveying rod. These innovative instruments feature telescoping sections that extend to full surveying rod lengths while collapsing to pocket-sized dimensions for transport. The graduated faces provide clear elevation readings for grade checking, benchmark establishment, and site surveying work. Steel springs provide precision lock action that holds extended sections firmly in place during measurement, preventing the slippage that would compromise elevation accuracy. The compact format makes them ideal for contractors and engineers who need occasional surveying capability without carrying full-size rods. Whether checking building grades, verifying excavation depths, or establishing elevation references, pocket rods deliver professional measurement capability in a format that's always within reach.

Keson LLC: Target Industries

Industry	Description	Information Links
Construction	Primary market serving general contractors, residential/commercial builders, concrete contractors, framers, and specialty trades. Keson provides essential tools for foundation layout (chalk lines, marking paint), structural work (levels, tape measures), and site measurement (measuring wheels for estimating materials). Products withstand harsh job site conditions including concrete dust, weather exposure, and heavy daily use. Key applications include laying out building footprints, checking grades and elevations, measuring rebar placement, marking cut lines, establishing control points, and quality control verification. Trusted by contractors for 55+ years due to unmatched durability and accuracy that reduces costly errors and rework	More Info
Land Surveying	Critical tools for professional land surveyors, cadastral surveyors, geodetic surveyors, and boundary specialists. Keson's RoadRunner measuring wheels provide quick distance verification between survey monuments with accuracy to 99.7%. Marking products enable clear identification of property corners, easements, and right-of-ways using ALTA/NSPS standard colors. Applications include boundary surveys, topographic mapping, construction staking, ALTA surveys, subdivision platting, and legal description verification. ProChalk permanent formulas mark survey points that must remain visible for years. Specialty measuring tools assist with slope distance calculations and elevation checks. Products meet stringent accuracy requirements for legal documentation and property records	More Info
Paving & Roadwork	Essential equipment for asphalt contractors, concrete paving crews, highway construction teams, and road maintenance departments. Keson measuring wheels accurately calculate lane striping distances, parking lot dimensions, and material quantities for bid estimates. ULTRA-MARK paint withstands hot asphalt application and vehicle traffic for layout marking. Heavy-duty chalk lines establish straight edges for paving machines and mark joint locations. Applications include highway resurfacing, parking lot construction, runway paving, bridge deck work, and pavement repair. Products resist petroleum products, extreme temperatures (20°F to 150°F), and heavy equipment vibration. DOT-approved marking products meet federal highway specifications. Tools proven on major infrastructure projects nationwide	More Info
Civil Engineering	Comprehensive solutions for civil engineering firms, municipal engineering departments, public works, and infrastructure developers. Tools support water/sewer installation, storm drainage projects, utility coordination, and site development. Measuring wheels calculate pipe runs and verify as-built conditions. APWA color-coded marking products prevent utility strikes during excavation. Applications include marking utility locations per One-Call requirements, measuring retention pond perimeters, laying out underground infrastructure, establishing grades for drainage, and documenting project dimensions. Products meet municipal specifications and engineering standards. Waterproof marking chalk works in manholes and wet conditions. High-visibility flags mark boring locations and test pits. Essential for infrastructure projects from design through construction and maintenance phases	More Info
Traffic Safety	Vital tools for traffic control companies, accident investigation teams, law enforcement, and road safety departments. Measuring wheels document accident scenes, skid marks, and debris fields for legal records. High-visibility Glo-Orange marking paint and flags establish work zones and detours visible day/night. Barricade tape meets MUTCD standards for temporary traffic control. Applications include accident reconstruction, work zone setup, pedestrian routing, event traffic management, and emergency scene marking. Products help meet OSHA visibility requirements and state DOT safety specifications. Reflective options enhance night visibility. Quick-deploy flags mark hazards immediately. Used by first responders nationwide and proven effective in saving lives through improved visibility and clear scene demarcation	More Info
Landscaping	Complete measuring and marking solutions for landscape contractors, hardscape installers, irrigation specialists, and grounds maintenance crews. Measuring wheels calculate material quantities for mulch, sod, and pavers while ensuring accurate billing. Marking paint and flags identify sprinkler heads, invisible fence lines, and landscape lighting routes. Chalk lines establish straight edges for paver installation and retaining walls. Applications include designing outdoor living spaces, laying out plant beds, marking irrigation zones, establishing lawn striping patterns, and measuring property for maintenance contracts. Weather-resistant products work in wet grass and soil conditions. Biodegradable marking options available for environmentally sensitive areas. Tools help landscape professionals deliver precise, professional results that exceed customer expectations	More Info
Utilities	Indispensable tools for electric, gas, water, telecommunications, and cable utilities. APWA color-coded marking products ensure compliance with One-Call/811 requirements: Red (electric), Yellow (gas/oil), Orange (communications), Blue (water), Purple (reclaimed water), Green (sewer), Pink (survey), White (proposed excavation). Measuring wheels verify locate distances and document utility paths. Applications include underground utility marking, pipeline route measurement, fiber optic cable runs, power line clearances, and emergency response. Products meet federal and state utility marking mandates. Weather-resistant formulas work year-round. High-stakes industry where accurate marking prevents catastrophic utility strikes, service disruptions, and potentially fatal accidents. Keson tools protect infrastructure worth billions	More Info
Railroad	Specialized tools for railroad construction, maintenance-of-way crews, and rail contractors. Measuring wheels calculate track footage, siding lengths, and ballast quantities. Heavy-duty marking products withstand railroad equipment vibration and petroleum exposure. Chalk lines establish track alignment and platform edges. Applications include rail replacement projects, grade crossing work, signal installation, bridge inspection, and derailment investigation. Products meet FRA safety requirements and AAR specifications. Tools function reliably around high-voltage catenary systems and in railroad's unique operating environment. Used by Class I railroads, short lines, and transit systems nationwide for maintaining critical transportation infrastructure	More Info
Mining & Quarrying	Rugged tools for surface mining, quarry operations, and aggregate production. Products withstand extreme dust, moisture, and heavy equipment vibration. Measuring wheels calculate haul road distances and blast pattern spacing. High-visibility marking products identify blast holes, safety zones, and equipment paths in low-visibility conditions. Applications include marking drill patterns, measuring bench heights, laying out crusher sites, and documenting excavation progress. Tools meet MSHA safety standards. Lumber crayons mark on wet stone and dusty surfaces. Products proven reliable in harsh mining environments from coal mines to granite quarries, helping maintain productivity and safety in demanding extraction operations	More Info
Agriculture	Versatile tools for farms, ranches, agricultural contractors, and irrigation specialists. Measuring wheels calculate field acreage, fence lines, and irrigation runs across rough terrain. Marking flags identify soil sampling locations, test plots, and crop boundaries. Applications include laying out center pivot systems, measuring grain bin foundations, marking tile drainage lines, and establishing windbreak placement. Weather-resistant products work in all growing conditions. Biodegradable marking options for organic operations. Tools help maximize yields through precise field layout and accurate chemical application zones. Essential for modern precision agriculture and farm management operations	More Info
Environmental & Geotechnical	Precision tools for environmental consulting firms, geotechnical engineers, and remediation contractors. Measuring wheels document contamination plume boundaries and calculate remediation areas. Marking products identify monitoring well locations, soil boring points, and sample grids per EPA protocols. Applications include Phase I/II site assessments, wetland delineation, groundwater monitoring, soil sampling programs, and brownfield redevelopment. Biodegradable marking products for sensitive ecosystems. Weather-resistant tools work in challenging field conditions. Products help ensure regulatory compliance and accurate environmental documentation critical for permits, litigation support, and remediation planning	More Info
Sports & Recreation	Professional-grade tools for athletic field maintenance, golf course construction, and recreational facility development. Measuring wheels layout soccer fields, baseball diamonds, and track dimensions to official specifications. Marking paint creates crisp field lines that withstand weather and play. Applications include striping athletic fields, measuring cross country courses, laying out tennis courts, and establishing playground boundaries. Products meet NCAA, NFHS, and professional sports standards. Environmentally safe formulas for turf applications. Tools help groundskeepers and facility managers maintain professional-quality playing surfaces that enhance athlete performance and safety	More Info
Insurance & Real Estate	Accurate measurement tools for insurance adjusters, property appraisers, real estate professionals, and home inspectors. Measuring wheels document property dimensions, calculate roof areas for claims, and verify lot sizes for listings. Tape measures confirm room dimensions and structural measurements. Applications include storm damage assessment, property valuation, casualty investigations, and documenting pre-existing conditions. Products provide legally defensible measurements for claims processing and property transactions. Digital options available for integrated reporting. Tools trusted by major insurance carriers and assessment professionals for accurate documentation that protects all parties in property transactions	More Info
Law Enforcement & Forensics	Precise measurement and marking tools for crime scene investigation, accident reconstruction, and evidence documentation. Measuring wheels record distances for scene diagrams admissible in court. High-visibility marking products establish evidence perimeters and photo reference points. Applications include traffic accident investigation, crime scene documentation, search grid establishment, and evidence chain-of-custody. Products meet law enforcement evidence standards and court admissibility requirements. Tools provide accurate measurements crucial for prosecution, insurance claims, and legal proceedings. Trusted by federal, state, and local law enforcement agencies for maintaining evidence integrity	More Info

Keson LLC: Contact Points

Contact Type	Telephone	Fax	Area Served	Available Language
General Inquiries	(630) 820-4200	(800) 345-8849	North America	English
Sales (Toll-Free)	(800) 345-3766	-	United States & Canada	English

Profiles	Information Links
Official Website	www.keson.com
About Page	Keson About Us
LinkedIn	Keson on LinkedIn
SOLA Partnership	SOLA Measuring Tools

Keson LLC: Company Values & Heritage

Our Founding Principle

"If a job is worth doing, it's worth doing right." - Roy Nosek, Founder

This philosophy, established by our founder in 1968, continues to guide Keson Industries today. We believe that outstanding service is just as important as outstanding products, and our commitment to both has made us a vital resource to professional tradespeople and contractors for over 55 years.

Manufacturing Excellence

We're proud to be an American manufacturer. Our Aurora, Illinois facility produces world-class products including our renowned marking chalk, Giant chalk reels, and measuring wheels. We mold plastic wheel hubs, rubber tires, and many other component parts right here at our factory.

The Keson-SOLA Alliance

In 2018, two industry leaders joined forces. Keson, founded in 1968 in the basement of the Nosek family home in Berwyn, Illinois, and SOLA, founded in 1949 with a leveling tool invented on the roof of the Scheyer family home in Goetzis, Austria. Both third-generation family companies share very similar values and bring complementary strengths: Keson's U.S. manufacturing and distribution network combined with SOLA's European manufacturing expertise and precision engineering create an unmatched partnership in the measuring and marking tools industry.