Residential Sheathing

T Strand Pro SheathingT Strand Sheathing

Tolko T-STRAND™ OSB Roof and Wall Sheathing is strong, durable and certified by the APA – The Engineered Wood Association. For performance and unbeatable value, choose from our Residential Sheathing Products to make your job easier.

Features and benefits include:

Fastener guide: Ink-jetted nailing guide on the panel face makes for convenient, easy installation
Moisture resistant: Proprietary blue and red edge seal protects panel from swelling
Indoor air quality: Contains no added urea-formaldehyde resin (NAUF)

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.

Available Thicknesses and Sizes

Thickness Categories Lengths Widths
T-STRAND Pro OSB STR 1 Sheathing 3/8, 15/32, 1/2, 19/32, 5/8, 23/32 6', 8', 9', 10', 12', 14', 16', 24' 4' , 8'
T-STRAND OSB Sheathing 3/8, 7/16, 15/32, 1/2, 19/32, 5/8, 23/32, 7/8, 1-1/8 6', 8', 9', 10', 12', 14', 16', 24' 4', 8'


Download the warranty for T-STRAND Pro OSB STR 1 Sheathing and T-STRAND OSB Sheathing

T-STRAND Pro OSB STR 1 Sheathing: 50-year transferable, limited warranty against delamination   

T-STRAND OSB Sheathing: 25-year transferable, limited 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: