When removing one rafter to install a skylight, is it necessary to double the two rafters at the sides of the opening and the headers?
Do you have to double 2x12 trimmer rafters when installing a skylight? Can you remove collar ties in an attic? Just how strong is a toe-nail? We asked four engineers to answer these and other structural questions.
Simple truss for supporting structural ridge
Stiffen bouncy floors with plywood
Making strong attachments with metal connectors
