Residential Flooring

T Strand Pro T&G T Strand T&G

At Tolko, we’ve invested time and resources into reengineering our APA-rated Sturd-I-Floor products. Moisture-resistant and edge-sealed, Tolko T-STRAND™ T&G OSB subfloor resists warping and stays true longer. Tolko T-STRAND™ OSB panels are improved, warranted and ready to perform.

Available in: 

Available Thicknesses and Sizes

Performance Categories Lengths Widths
19/32", 23/32", 7/8", 1-1/8" 95-7/8" (8’), 119-7/8" (10'), 143-7/8" (12') 47-7/8" (4')


Download the warranty for T-STRAND Pro OSB T&G Subfloor and T-STRAND OSB T&G Subfloor.

T-STRAND Pro OSB T&G Subfloor: No-nonsense transferable, 365-day no-sand, 50-year limited warranty

T-STRAND OSB T&G Subfloor: 25-year transferable warranty against delamination

Warranty 50 Year Red Warranty 25 Year Blue

Proper Panel Spacing

It is important to properly space OSB and Plywood panels to allow for natural expansion as they adjust to the moisture in the environment.  APA the Engineered Wood Association recommends 1/8-inch space between panels for a smooth and secure surface without buckling. For more information view following resources from APA:

Easy to do business with. Product quality and consistency. On-time shipping. This is what Tolko is built on.