Adding built-in benches to your wood deck turns the area into a seating spot without the need for outdoor furniture. You will enjoy reading a book or just basking in the sunshine on a warm day. This project costs under $500 and is easy for anyone to do with some assistance. You can even paint or stain the benches to match the deck.
You will need:
• 10 2×4 boards
• 4 galvanized metal chair brackets
• Carriage bolts
• Cordless drill
• Forstner bit
• Spade bit
• Sliding T-level
• Circular saw
• Framing square
• Tape measure
Step 1: Select the location for the two end brackets and remove the deck railing, if present. Use the tape measure to measure the distance between the brackets, ensuring even spacing. Use the screws and the drill to fasten the brackets to the deck.
Step 2: The 2×4 boards will be attached to each bracket to provide back support. Butt the T-level against the support to measure an angled cut for the top of each board. Adjust the circular saw to a matching angle and cut the top of the boards. Use the clamp to attach the boards to each bracket vertically. Level the boards, drill holes into them that align with the holes in the support bracket, and attach the boards to the brackets with carriage bolts.
Step 3: Lay a 2×4 board across the back of each bracket, making it flush with the outside of the deck. Lay two 2×4 boards so they rest flat on the brackets. Attach another board to the front of the brackets, creating a trim piece or skirt that overhangs part of the front of the brackets.
Step 4: Set an angle on the table saw equivalent to that used for the support boards. Cut a board to create a shoulder-height area to hold beverages. Use the framing square to clamp this board in place to ensure that it is flush. Screw this board on top of the vertical 2×4 supports.
Step 5: Attach the remaining horizontal boards to create the seatback of the bench, ensuring that they are level before screwing them into the vertical 2×4 boards.