Using fewer than 38 nails in the studs/post will reduce the allowable load of the connection. To calculate a reduced allowable load, use 199 lb. per nail for DF/SP or 172 lb. per nail for HF/SPF. Minimum length of extent of reduced nails may not be less than 21" as is shown in graphic.
Nails in studs/post shall be installed symmetrically. Nails may be installed over the entire length of the strap in the studs/post.
The minimum 3"-wide beam may be made up of two 2x members.
MSTC48B3 and MSTC66B3Z installed over wood structural panel sheathing up to 1/2" thick achieve 0.85 of table loads.
PSL beam may be used in lieu of a standard-dimension lumber beam with no load reductions.
Multiply allowable loads by 1.85 to attain an allowable load for installations where two straps have been installed with a 1 1/2" clear space between straps.
Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers known as the narrow face. Values in the tables reflect installation into the wide face. See Technical Bulletin T-C-SCLCLM for load reductions resulting from narrow-face installations.