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® C102121) 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

Allweather Wood maintains current preservative treated lumber specification information online via Construction Market Data. LEARN MORE.


AIA Lunch &
Learn Courses

Allweather Wood offers an AIA approved course around commercial and residential applications of Fire Retardant Treated Wood (FRTW). Additionally, we offer two AIA LU/HSW credit hour courses that provide insight into specifying Redwood as a sustainable building product. All three courses are available cost-free, online.

Building with Redwood Timbers

This course by Hanley Wood University provides evidence that Redwood Timbers offer a strong, durable option for building projects. It explores the use of Redwood Timbers for post and beam construction, decorative elements, and outdoor living structures such as pergolas and arbors. The course provides comparisons between Redwood and other timber options. It also provides information about Redwood’s compliance with California’s Wildland-Urban Interface (WUI) thanks to its natural resistance to fire.

Fire Retardant Treated Wood (FRTW) For Commercial and Residential Structures

This course by Ron Blank describes the features of fire retardant treated wood (FRTW), and the difference between fire resistance and flame spread. The course also lists the various types of FRTW and their specific applications. The course further explains what the model building codes require, and how FRTW is specified. Finally, the course describes how FRT wood is manufactured, tested, and certified.

Redwood: A Sustainable Building Product

This course by AEC Daily provides evidence that Redwood makes it easy to build sustainably without sacrificing quality or elegance. It also provides information on how Redwood is renewable and recyclable, and cleaner to produce than composite or plastic building products. The details of a Life Cycle Assessment (LCA) comparing redwood and plastic/composite decking options are shared, as well as information about Redwood’s Environmental Product Declaration (EPD).