I-Joist reference design values for bending, shear, etc. are based on the statistical 5th percentile of strength from tested samples (adjusted for population size vs sample size etc., etc.). Then, they tack on a safety factor of 2.1. (This is from ASTM D5055.) In the paper I linked...
I’ve received dozens of emails asking me how you size TJI’s for a new home. Sizing Trus Joist brand TJI’s isn’t really that difficult once you understand the issues. Most people think that joists are sized based on minimum design loads. That is ultimately true, however, loading doe...
fixed surface or other board, it should be securely fastened to the nailer or double joist with a gap allowing for expansion. The size of gap should be determined based on weather conditions at the time of installation. The closer the temperature is to th usual high temperature for the year...
your on-center spacing) that meets or exceeds the span of your application. 4. S elect the TimberStrand® LSL Rafter Depth and note the number of 16d (0.131" x 31⁄4") nails required at the heel connection for your roof slope. 5. Size ceiling joists. See page 3.General Notes ...
A foot upon a push-pull rod extends downwards from the fixed portion of the jack, and pushes upon the flooring planks In a preferred embodiment, two attachment points are provided for the foot on its rod, at each end of the fixed portion, providing maximum flexibility. U.S. Pat. No. ...
foot required. if nails can be clinched, only 2 nails per foot are required. Flange Net Filler Width Depth Block Size 1-1/2" 9-1/2" 1-1/8" x 6" high 11-7/8" 1-1/8" x 8" high 9-1/2" 1-3/8" x 6" 1-3/4" ...