## 6 x 6 sawn post vs 3-ply 2 x 6

6 x 6 wood post versus 3-ply 2 x 6 © Jeff R. Filler, May 2022, Pell City (DRAFT) If you are an a professional engineer providing designs (or fixes) for wood-frame construction, sooner or later you will be asked, …

## Shear Deflection – Prefab Wood I-Joist

Shear Deflection – Prefab Wood I-Joist Example Calc (c) Jeff R. Filler, Pell City, 2022 Continuing our discussion on shear deflection of wood beams (joists, etc.), let’s look at a prefabricated wood I-joists. Basic design information for prefabricated wood I-joists …

## E min

E min (c) Jeff R. Filler, Pell City, Alabama, 2022 But First, E apparent and E true `E min’ is calculated wood property used in the design of structural wood members (beams, columns, etc.). It is a derived property, derived …

## Accuracy of Deflection Calcs (and Eee)

Deflections and Average Modulus of Elasticity (c) Jeff R. Filler, 2022 A word on the accuracy of deflection calculations … wood beams, joists, etc. In the example above (link) we calculated a deflection of 0.599 in. How accurate is this …

## E app (Apparent Modulus of Elasticity)

`E app’ E app (`Eee app’, `Eee apparent’, Apparent Modulus of Elasticity) is a design property for wood construction. It comes from the Modulus of Elasticity of the wood (E, MOE, Young’s Modulus). It’s not a `true’, or `pure’ property, …

## roof rafter calcs … BENDING STRESS

Designing a roof rafter … (bending stress) … Linda wants a barn-shelter for her goats. Okay – I’ll do it. `Twelve by twenty-four.’ `Let’s go walk the site. It’s got some slope. I’ll make a stepped-barn, each section will be …

## a truss for Miles

Miles asked me to design a truss for his shop.  I grabbed my clipboard.  Wood? Yes.  Rough sawn?  Yes.  Rise/Run?  4/12.  Width?  21 feet.  (Hmmm … I am sketching as we go along.)  Oh, 20.  You mean 20 to center? …