Do I need to use special hardware for the new chemicals used to pressure-treat wood?
For wood treated with ACZA, ACQ, CC, and CA, the answer is YES. Hardware manufacturers advise using STAINLESS STEEL fasteners to connect wood treated with these chemicals. Fasteners would include sill anchor bolts, framing clips in contact with treated wood, nails driven through treated sills into the ends of studs, nails used to fasten shear panels or other sheathing to treated sills, hangers used for treated deck joists or ledgers, etc. If you use wood treated with Borates, you can use “regular” hardware. Click here for more detailed information on pressure-treated wood.
