Ok, I think I have convinced my wife to help me, so I guess I am doing this myself!
Just to make sure I am ordering right, do I measure the slide box itself or the flange. Flange measures 12’9.5”. I know there should be some overlap, so is 13’ sounding correct?
Since I drill holes, what is the best sealant. I have seen some tape and caulk type stuff used
Maybe I better look at those videos again, too