Laboratory and Field Floor Slip Resistance (Coefficient of Friction/DCOF Rating) Testing Services

Safety Direct America provides laboratory and field floor slip resistance testing services all over the USA and beyond. Our flooring slip coefficient testing expertise is unmatched in the Americas. We provide specialized, certified, engineer-stamped floor and tile dynamic coefficient of friction testing (DCOF rating), ASTM E303-93 road skid resistance testing, SCOF tile testing (ASTM C1028 and ANSI B101.1 – reliable in dry condition only), Sustainable Slip Resistance floor testing services, and we also sell floor slip test instruments (such as the BOT-3000E). Quick DCOF tile rating turn-around in 2-3 days! We’re the tile slip coefficient testing experts! Get a COF tile rating before installation and eliminate slips. Call us at 800-988-6721 to request a quote or with any questions regarding field testing. 

Recommended Floor Slip Resistance Test PackageANSI A137.1/A326.3 (aka BOT-3000E “DCOF AcuTest”) PLUS a Pendulum DCOF slip test: $387.00 per sample. This package will give you two separate reports – one for 2012 IBC requirements (DCOF Rating) and another for the slip test we recommend the most.
Recommended Floor Slip Test Package PLUS Wear TestOR, get the above tests PLUS our Sustainable Slip Resistance (wear) Test, which will give an indication of the slip resistance of your flooring after 1-2 years of use in a busy environment with lots of foot traffic. This is our most highly recommended option. $457.00 per sample.
Floor Slip Resistance (COF) Lab Test
Charge per Sample
Why do this test?
ANSI A137.1 (aka “DCOF AcuTest”) DCOF Rating Test or ANSI A326.3$200Specified in 2012 International Building Code for indoor wet areas. Uses BOT-3000E Tribometer. “DCOF AcuTest”Requires a 0.42 minimum “passing” DCOF for indoor level floors. Latest version gives min. for other areas too
Pendulum DCOF Test (HB 198/AS 4586 or 4663-2013, EN 13036-4, BS EN 16165, TS 15676, EN 14231, etc.)$230Dry and wet slip resistance appropriate to various conditions, e.g. pool deck, lobby, rest room, etc.The most widely used slip resistance tests worldwide. Based on 50 years of real-world research in 50 nations
Sustainable Slip Resistance Pendulum DCOF Test$320Check whether slip resistance survives after significant abrasive wear by pedestriansFor areas with high pedestrian traffic that must remain slip resistant.
ANSI B101.3 DCOF Test$200An expired U.S. standard using the BOT-3000E tribometer, mostly indoors. We recommend using A326.3 insteadPendulum is much better for assessing safety because of the decades of research behind it
ASTM C 1028-07 SCOF Test$290Some specifiers still require itObsolete, misleading test withdrawn by ASTM in 2014. Not valid for assessing pedestrian safety
ASTM E 303-93 Road Skid Test$230An American skid test for road surfaces. Also used for floorsA simplified wet pendulum test with soft TRL rubber.
ANSI B101.1 SCOF Test$200If required by specifier. Not a valid test for pedestrian safety, because it’s a static (SCOF) testThis is an expired test that can be helpful for dry areas only
SlipAlert DCOF TestOn-site onlyQualitative demonstration that in some cases mimics pendulum readingsA simple, durable machine is used that requires minimal training
Tortus Floor Friction Digital Tribometer DCOF Test$230Dry and wet slip resistance up to high values of coefficient of friction with hard or soft rubberEndorsed by Ceramic Tile Institute of America since 2001
Pay now for a Floor Slip Resistance (Coefficient of Friction) Test and then send in your samples:
Pay for slip resistance test If you need to pay for one of the lab slip resistance tests described above which has a fixed price, use the blue button above to pay for those. If you also need to pay for a slip test “rush fee” (an additional $75 per test for results in one business day), or if you need to pay for some field slip resistance testing, or any other amount given to you by us for our services, you can enter the custom amount below and click on the yellow button to pay any amount necessary. Be sure to tell us what you’re paying for via email.
Amount: USD
Send your flooring samples for a slip test and your information (including what test you’d like, your name, e-mail address, company name, and name of the test sample(s), and, if not paid online, a check [made out to Safety Direct America]) to:
Safety Direct America
c/o John C Sotter
26705 Loma Verde, Mission Viejo, CA 92691
Phone: 1(949)582-0889    E-mail:
Contact Us

To have your floor slip resistance tested for a DCOF rating at your location, the charge may be based on time and expenses, or may be a fixed price, depending on the situation. We are certified by the City of Los Angeles (one of the few government agencies in the USA that has an approval process – look here under Sotter Engineering) for testing the slip resistance of flooring, and floor slip test reports come stamped by a registered professional engineer, usually within 3 business days of receiving your lab sample. Sample size requirements are discussed below. The total charge (e.g. $200) is the same for testing either one, two or three identical pieces. For more info, contact us by email or call (949)933-6971.

Ideally, you will provide a flooring sample measuring 12″x12″, but most tests can be done on smaller samples (for instance, a minimum of 5″x7″ for pendulum tests, and 5″x5″ for ANSI tests). Some test methods (ANSI A137.1/A326.3, ASTM C1028-07) ask for three identical samples, but all tests can be done on one sample, if necessary. All tests above are done in the wet and the dry condition, except A137.1/A326.3, B101.3 and ASTM E303…those test methods only call for wet testing (although we can do ANSI A137.1 and E303 testing dry by request for an extra $50.) Here are some sample test reports: ANSI A137.1/A326.3, HB 198 British Pendulum DCOF Test and Sustainable Slip Resistance (SSR) Pendulum Test.
If MULTIPLE TESTS are ordered on one sample at the same time, a 10% discount applies to the test total charge. If ten or more tests are ordered and paid for in the same calendar year, every tenth test will be at no charge. TURNAROUND TIME for laboratory slip resistance tests is usually 2-3 business days. RUSH FEE: If you need your floor slip testing expedited in a rush, we can usually get your flooring tested and a report sent to you within one business day (with rare exceptions) of receiving your sample for an extra $75 (expediting fee per test). Pay that fee here by entering “75” (per test) above the yellow “Pay Now” button. Test samples are stored for 21 days before being discarded. If you’d like YOUR SAMPLES RETURNED, please let us know promptly. There is minimum of a $25 fee (plus the cost of shipping if you don’t have an account number we can use) for the return of a sample. This charge could be more based on individual circumstances. You can include a return shipping label with your shipment, which will help keep this charge low.

↓ Video on floor slip resistance testing ↓

We have slip resistance field testing clients from Bermuda to Japan and Guam, Mexico and Canada, as well as throughout the entire USA. We offer not only a one-time field slip resistance test, but the option of periodic slip resistance monitoring (quarterly, annually, etc.) of the coefficient of friction of your floors. Our slip test monitoring and floor maintenance recommendations based on slip-resistance test data from your floors can drastically reduce your expenditures for slip-and-fall claims in areas with heavy foot traffic. Periodic slip resistance testing (or traction auditing) of your floor’s slip-resistance has many potentially multi-million dollar cost-saving benefits for building owners and safety mangers. We can test dry only for areas that stay dry in use; and dry and wet for areas that get wet in use. (We can also help you if you’d like to buy your own slip resistance test instrument.) Here’s more detail on our slip resistance testing.


Send your flooring samples for slip resistance testing and your information (including what test you’d like, your name, email address and company name, name of the test sample, and a check [or call us with your credit card info]) to:
John Sotter
26705 Loma Verde
Mission Viejo, CA 92691
Phone: 1(949)933-6971