The hole cannot be larger than one-third the depth of the joist, so the maximum hole size for a 2×12 joist (actual size 1-1/2 x 11-1/4 in.) is 3-3/4 in. diameterplenty big enough for running cable!

Q:I am strengthening my house in the crawl space by putting oriented strand board (OSB) shear panels on the cripple wall from the mudsill to the floor joists. I am wondering if the same ...