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Whiteside Router Bits RFT2100 1/4-Inch Diameter Spiral Flush Trim Up Cut We have more panels on the wall than are needed to resist the lateral forces.  Since all panel edges are blocked, and edge nailed 6“o.c. with the correct diameter nail (.131) our engineer says “no need to stagger the horizontal seams“.   . “Shear walls with staggered panel joints will deform about 25 percent less than walls with all the joints lined up. The less your walls deform, the better. From my experi-ence, though, we need to focus on more basic issues. In this particular building, these issues included tie-downs without nuts on the anchor rods, end-posts without adequate nailing from the shear panels and inadequate panel edge nailing—more than enough problems to offset any benefit from staggering the panel edges. Personally, I feel that the framer’s time is better spent intaking extra care while nailing than staggering rows of blocks as shown in Figure 91 to accommo-date staggered panel joints.“ Thor Matteson Wood-Framed Shear Wall Construction . APA Diaphragms and Shear Walls.  Page 7 Allowable Shear for APA Panel Shear Walls ” (b) Panel edges backed with 2 inch nominal or wider framing. Install panels either horizontally or vertically.  Space fasteners maximum 6 inches on center along intermediate framing members for ⅜ inch and 7/16 inch panels installed on studs spaced 24 inches on center. “ Dcument L350 also check out the tables on page 54 APA Engineered Wood Construction Guide (E30) . AWC-SDPWS2015 page 28 5.  Diaphragm resistance depends on the direction of continuous panel joints with respect to the loading direction and direction of framing members, and is independent of the panel orientation.” #framer #framing #framersareadyingbreed #engineering #shearwall #therationalbuilder #huberpartner