Compression Post Recommendations
Asymmetrical Posts: This arrangement means using a maximum of three built-up studs at the end of the
wall and multiple number of studs at the opposite side of the Strong-Rod. This provides uniform anchor
placement and consistent end-of-wall placement location at upper floor levels.
Estimate of Moment Arm = wall length - total no. of studs at the end of wall - rod space (9" max) - 3"
Nailing Example: 4) total closest compression members adjacent to rod: 2" o.c. edge nailing x 4 = 8" o.c. nailing
to two closest studs, each side of rod.
Asymmetrical Compression Posts (Multiple 2x Members) Perpendicular and Parallel to Grain Factored Resistance for D.Fir-L
- Lumber based on 2x_ D.Fir-L No.1/No.2 grade. See General Notes for additional information.
- COG = Centre of Gravity
- Bearing loads are perpendicular-to-grain values and include bearing factor KB and size factor KZCP.
- Perpendicular- and parallel-to-grain values include KD = 1.15 load increase.
- Calculations based on Ke = 1.0 for parallel-to-grain resistance in depth direction of stud.
- Calculations assume KH = 1.10 with wall sheathing providing lateral restraint against buckling in 38 mm direction of stud.
- Fastening of studs to wall sheathing and wall sheathing specifications to be provided by Design Professional, not by Simpson Strong-Tie.