Assemble The Top Frame
4
.1
Assemble the top frame using 3 1/2” x 3 1/2” pressure-treated material. You will need two
boards cut to 12’ that will be the rim joist and two boards cut to 8' that will be the joist.
4
.2
For the corners, use an overlapping joint.
4
.3
Using 3 1/2" x 3 1/2" pressure-treated material, cut inner joist and assemble using the
illustrations below as a reference.
4
.4
Secure the beams and studs with 2x5" wood screws.
4
.5
Using a speed square or carpenter's square, check the corners to make sure
they are 90 degrees.
12'
8'
3 1/2"
3 1/2"
3 1/
2"
3 1/
2"
3'-5
"
7'-5"
STEP
4
4
