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          1. Residential Sheathing

            strong, durable, and certified by the APA

            True. Trusted. Tolko.
            TSTRAND PRO OSB STR 1 Sheathing logo
            T-Strand OSB Sheathing logo

            Designed based on feedback from our partners in the construction industry, Tolko T-STRAND OSB roof and wall sheathing is strong, durable, and certified by the APA - The Engineered Wood Association. For material that meets or exceeds your needs at an unbeatable value, choose from our residential sheathing products and to help make your job easier.


            Build better with T-STRAND

            Your choice of material can make life on the job-site easier. At Tolko, we are constantly innovating to bring you the easiest to use, most durable product we can.

            Our T-STRAND OSB Sheathing features an ink-jetted nailing guide on the panel face, which makes for convenient, easy installation, and our Proprietary Blue Edge Seal creates a moisture resistant panel which resists swelling.

            To keep our air clean, our OSB contains no added urea-formaldehyde resin (NAUF) for improved indoor air quality.


            Available Thicknesses and Sizes

            Thickness CategoriesLengthsWidths
            T-STRAND Pro ISB STR 1 Sheathing3/8, 15/32, 1/2, 19/32, 5/8, 23/326', 8', 9', 10', 12', 14', 16', 24'4', 8'
            T-STRAND OSB Sheathing3/8, 7/16, 15/32, 1/2, 19/32, 5/8, 23/32, 7/8, 1-1/86', 8', 9', 10', 12', 14', 16', 24'4', 8'


            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 the following resources from APA:



            • 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
            25 Year Limited Warranty emblem
            50 Year Limited Warranty emblem
            TSTRAND PRO OSB SIP Facers logo

            Tolko T-STRAND Pro OSB SIP Facers

            Panel matching made easy

            Laminating structural insulated panels (SIPs) can feel like putting together a puzzle, with OSB boards that never quite seem to fit. To help you get the quality you want, and avoid the stress of finding just the right piece for your project, we offer our dimensionally stable and consistently straight OSB SIP Facers.


            Tested to the highest standards

            Tested to APA’s standards PS2 and PR-N614, these unsanded panels are compatible for laminating with insulating polyurethane (PUR), polyisocyanurate (PIR), and polystyrene (EPS) foam cores.


            Build better with T-STRAND

            Our SIP Facers offer increased moisture resistance, with our Blue Edge Seal which protects against swelling. To ensure our product arrives at your door in the same condition it left our mill, we ship our SIP Facers in a woven-poly bag for extra protection against the elements.


            Safe, clean air

            T-STRAND contains no added urea-formaldehyde resin (NAUF) to keep your air free and clear.


            Available Sizes

            Thickness: 7/16
            Lengths: 12', 16', 24', custom lengths
            Widths: 4', 8', custom widths


            Call our OSB sales team to ask about residential sheathing.