Lumber

Most of the conversations I’ve had with component manufacturers (CMs) about increasing production efficiency inevitably focus on one thing: bottlenecks.

I was recently sitting in an SBCA meeting and a fellow component manufacturer (CM) on the board spoke passionately about how important it was for all CMs to promote the benefits of component framing over stick framing. The way he talked, if I didn’t know him, I would have guessed he ran a plant in Texas or Mississippi and was constantly having to fight for market share against stick framers. In actuality, he operates in Florida. Stick framing doesn’t even affect him.

A recent series of articles leave a reader wondering, “what are the true impact of higher lumbers costs are on the ultimate price of a house?”

It is currently estimated that over $1.2 billion in duties on softwood lumber imported from Canada will be collected in 2018.

When evaluating today’s North American softwood lumber markets, it’s important to keep the relatively recent shift (since 2015) in the controlling ownership of U.S. mills, particularly in the southern yellow pine region.

This presentation seeks to explain how to correctly apply live loads to the bottom chord of trusses for uninhabitable attics in accordance with IRC Table R301.5 and IBC Table 1607.1 and ASCE 7-10 Table 4-1.

This report focuses on building code requirements for using fire retardant treated wood (FRTW) in floor/ceiling and roof/ceiling assemblies in Type III building construction. 

The BC beetle kill means changes are on the horizon for lumber harvesting, processing and pricing. 

Quality marks are not substitutes for grade marks—FRTW will include both!

Lumber Design Values

No matter the species, component manufacturers (CMs) purchase and rely on the accuracy and reliability of many different lumber design properties, including: bending (Fb); shear parallel to grain (Fv), compression perpendicular to grain (Fc^), compression parallel to grain (Fc), tension parallel to grain (Ft), and modulus of elasticity (E and Emin).