Choose Allweather Wood

Building Code Compliant

From sill plate to guardrails and sign posts, to pilings for docks, shoring for forms, to pole barn stock, framing, and fire retardant treated, Allweather Wood manufactures and distributes the most trusted, code compliant, preservative treated lumber and plywood products for most building applications. We are able to serve our customers as they source lumber and plywood for Green Building and LEED® (Leadership in Energy and Environmental Design) certified projects, as well as government and municipal construction projects. Allweather Wood maintains Forest Stewardship Council® (FSC® C013133) chain-of-custody certification at our manufacturing locations. FSC® certified wood products, both treated and untreated, may be eligible for LEED® points.


Preservative Treated Lumber Specification Information

Complete specification information for the preservative treated lumber and plywood products manufactured by Allweather Wood are easily accessible free, online. Please Contact Us should you need additional product information or have any questions about the products we manufacture. 

Resources/SDS information for the preservative treated lumber and plywood products manufactured by Allweather Wood. 

ARCAT.com offers free access to Allweather Wood CSI 3-part specification, BIM objects, product catalogs, and videos. 

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Continuing Education

Allweather Wood and partner organizations, including Western Wood Preservers Institute (WWPI) and Koppers Inc., offer several opportunities for architects and other specifiers to meet their continuing education needs. The resources listed below are all free and available online. Please Contact Us if your firm would like to participate in a private webinar with one of our preservative treated wood or redwood product experts.

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Preservative-Treated Wood: Specification and Use

Offered by AECDaily.com by the Western Wood Preservers Institute (WWPI), this course describes the manufacturing process for preservative treated wood, types of preservative treatments available, and the required levels of retention as dictated by the end-use application.

Specifying and Using Fire-Retardant-Treated Wood

Offered by AECDaily.com by the Western Wood Preservers Institute (WWPI), this course provides information about fire retardant treated wood (FRTW) and how it may be used as an alternative to noncombustible materials; allowed by the building codes for some applications. 

Interior Fire Retardant Pressure Treated Wood

Offered by Koppers Inc., this course details interior fire retardant treated wood including technical details, uses, and specification resources. The course is eligible for 1 AIA LU/HSW.

Redwood Lumber: Attributes, Applications, & Environmental Benefits

Offered by AECDaily.com, this course provides insights into how modern redwood forestry management practices contribute to the sustainability and responsible use of redwood products. The course further describes the results of a life cycle assessment (LCA) comparing redwood to recycled plastic/composite decking that support redwood as an environmentally friendly choice for wood projects. Details are presented on how to differentiate and specify grades of redwood, as well as how to finish it.

Designing Sustainably with Redwood Timbers

Offered by AECDaily.com, this course offers evidence that redwood timbers are a safe, strong, and sustainable option for exterior and interior building projects where natural wood is desired. This course provides an overview of the properties of redwood timbers including insulation properties, grades, dimensions, fasteners, finishing options, and strength. It concludes with numerous case studies exploring the use of redwood timbers for post and beam construction, decorative elements, deck posts, and outdoor living structures.

Redwood Lumber & Timbers: Advanced Specification Details 

Offered by AECDaily.com, this course covers advanced specification details of redwood lumber and timbers including the results of an updated life cycle assessment (LCA) study and environmental product declaration (EPD) and the relevance of these findings to sustainable building practices where a durable, natural wood species, in this case redwood, is utilized. The course further details why redwood is a "carbon smart" material and how it may contribute to biophilic design.