Be certain that you specify the PT as DougFir. There are lumber yards out that only stock Hem-fir PT mudsill, which has lower values, (and is actually prohibited in Los Angeles).
Thanks for the input.
Here in Los Angeles, 3X PT mudsills are standard, cut washers for ABs have been abolished and I do not use anything else but 1/2" Struct 1 and 3X (actually 4X) edge members. (strangely, 4Xs are cheaper and are generally what is used). That is a standard detail for even the...
With a moniker indicating Detroit, its small wonder you are a bit befuddled. But consider; in an area of SZ-4, with the City of LA's 25% reduction in code value of plywood shear walls coupled with lateral Vs of .25W+ (not uncommon), it doesn't take much McMansion architecture to get you into...
Nothing out of the ordinary. I cite this problem which occurs most typically in residential work where the floor plan will not allow shear panels of adequate length to be only one sided. I hate using moment frames if I can avoid it because of the cost to the project and the inherent problems...
I've tried to glean from APA and other sources whether or not there is a problem with the values associated with high load, double sided plywood shear walls. APA seems to assume that a double-sided shear wall is equivalent to a single sided shear wall X 2.
Given the vagaries of construction...
