Tri City Lumber

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Good news. We are definitely fans of Tri City Lumber. They acknowledged they had made a wrong and decided to make a right.  They came and exchanged all of the lumber they delivered without charging a restocking fee or delivery charge.  We have achieved the required modulus of elasticity needed for sistering the damaged joists in our building.  Rest assured our trusty engineer can sleep easier this evening with our new modulus of 2,000,000 psi vs. 1,800,000 psi.

IMG_4341The modulus of elasticity is important to understand when ordering lumber as it is a measure of the stiffness of an elastic isotropic material and is a quantity used to characterize materials. It is defined as the ratio of the stress along an axis over the strain along that axis. Blah, blah, blah…

The important factor to note for the non nerdy engineers out there is that the higher the section modulus, the stiffer the member is over a longer span.  While doug fir structural select would have been acceptable given the loading conditions and the span, it is difficult to find true structural select in lumber yards.  Often you are given something inferior.

IMG_4342

Laminated veneer lumber (LVL) has the required section modulus that we need for our building and it is a product that uses multiple layers of thin wood assembled with adhesives. Sort of like plywood, you can see it in the image below.

Laminated_Veneer_Lumber

It is typically used for headers, beams, rimboard, and edge-forming material.  LVL offers several advantages over typical milled lumber: Made in a factory under controlled specifications, it is stronger, straighter, and more uniform. Due to its composite nature, it is also much less likely than conventional lumber to warp, twist, bow, or shrink.  It is also easier for the trades to work with than 1/4″ plate steel which is what another engineer had suggested to us.  Regardless, we are happy that our engineer is happy and that it cost us nothing…

 

15 thoughts on “Tri City Lumber”

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