How to Stagger Lap Siding. For walls longer than 12 feet, you'll need to butt additional lengths of siding together. It's best to stagger the joints in each successive course to avoid noticeable patterns. Butt joints in adjacent courses should be spaced apart by at least two stud bays for 16-inch, o.c. framing or one bay for 24-inch, o.c ...
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