

FLOOR LEVEL
Inspection Services
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951-427-0646

Floor Flatness & Levelness Testing (ASTM E1155)
Precision Testing for Commercial and Industrial Concrete Floors
At ERJ Inspections, we specialize in ASTM E1155 Floor Flatness and Levelness Testing—the industry-standard method for evaluating the smoothness and uniformity of concrete floors. Our certified inspectors deliver precise, data-driven results using advanced digital instruments to ensure your slabs meet design tolerances and project specifications.

What are F-Numbers?
The ASTM E1155 standard defines two key performance measures to evaluate floor performance in high-tolerance environments like warehouses, hospitals, and distribution centers:

Field Inspections & Material Verification:

Field Survey: Our inspectors take precise elevation readings using advanced digital profilers and laser-based equipment.

Data Analysis: Elevation data is processed strictly per ASTM E1155 to calculate accurate FF and FL values.

Comprehensive Reporting: You receive detailed documentation including graphical elevation profiles, FF/FL results compared to design requirements, and pass/fail criteria with corrective recommendations.

FF (Floor Flatness): Measures the smoothness of the floor surface by identifying short-wave undulations.

FL (Floor Levelness): Measures how level the floor is over longer distances, detecting any slope or tilt.
Our Testing Process
We provide an objective and verifiable evaluation of your floor through a streamlined three-step process:
Advanced Technology: The Floor Dipstick® 2285
ERJ Inspections utilizes the Floor Dipstick® 2285, internationally recognized as the most trusted instrument for floor profiling.
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Speed & Efficiency: We can measure and analyze up to 8,000 square feet of slab in just a few hours, producing instant on-site data.
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Exceptional Precision: Features a guaranteed accuracy of ±0.0125 mm (0.0005 in) and a typical performance of ±0.005 mm (0.0002 in).
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Global Standard: Factory-calibrated and trusted by developers, contractors, and government agencies on six continents.
Proudly Serving
- County of LA
- City of Long Beach
- City of LA (LADBS)
- County of Ventura
- County of Orange (OCPW)
- City of Anaheim
- City of Newport Beach
- County of Riverside
- County of San Diego
- County of San Bernardino
- Coachella Valley Region
- And MANY MORE!
Any job ,anywhere, we are one hour away guaranteed! Call us for your next project!!!

ERJ Inspections/ Deputy Special Inspections Is a full service construction consulting company serving all California, we provide the highest level of expertise & accuracy in integrity In special inspections, material testing & Geo-technical services Throughout California

Why Choose ERJ Inspections?
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Certified & Experienced: ASTM E1155 certified inspectors with a track record of accuracy.
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Approved Agency: LADBS and Orange County-approved testing agency.
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Fast Turnaround: Reports are typically delivered within 24–48 hours.
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Verified Results: Independent, third-party results trusted by builders and engineers across Southern California.
