The Family Handyman on MSN3 个月
How To Safely Drill Through Floor Joists
Drill holes with a diameter of no more than one-third the depth of the joist, staying 2 in. away from the top and bottom.
Flexible Shims and a 2 Pedestal Expansion Kit that allows the user to add an additional joist or 16 -nches of width to the deck. Manufactured from heavy-duty engineered polymer, Level.Up ...