Build your own outdoor sofa with just 11 2x4s. Ana White plans include step by step diagrams and shopping and cut list.
11 - 2x4x10’ (prefer cedar boards)
150 - 2-1/2” to 3" long, self-tapping exterior decking screws (#8, #9 or #10 will all work)
RECOMMEND: Build to suit cushions.
9 - 2x4 @ 72” (or cushion width x times 3)
13 - 2x4 @ 25-1/2” (or cushion depth plus 1-1/2")
2 - 2x4 @ 28-1/2” (or cushion depth plus 4-1/2")
Cut the seat framing boards with compound miter saw or similar.
Screw together with self tapping screws.
Now for the arms.
Cut the boards.
Attach longer 2x4 to two of the shorter 2x4s with screws.
Screw together with screws.
Screw together with screws, also attach to board from step 3.
Attach seat boards to top of seat frame with 2-3/4" screws.
Screw back piece at an angle into the arms with 2-3/4" screws. You can also use pocket holes.
Some builders add a middle row to the back/sides to help keep cushions in line.