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 with Zinc Borate Protection
Tolko has certification from APA to produce OSB panels protected with Zinc Borate. This treatment protects the panel from termites, fungal decay, and mold. We add it to the mixture before the panels are pressed to create consistent protection throughout every inch of the panel.
These products are treated to a level equivalent to that specified in American Wood Protection Association (AWPA) Standard T1-14 and to that specified as Hazard Class H2 in the Australia - New Zealand standards AS/NZS 1604.2:2012.
View our Zinc Borate Fact Sheet to learn more about the benefits of this treatment.
Thicknesses and Sizes
|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
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: