Step 12
Install Gable Support Shelf
4.
From cut-offs from Step 8 cut (2) two 2x4s to a length of 10-1/4".
5.
Nail the 2x4 blocks to the rear corners, flush with the top of the 2x4 tie plate and against rear
wall. Use (4) four 10d sinkers.
6.
Nail one of the boards you assembled in previous step to blocks. Use 10d sinkers.
7.
Make sure the walls are square to each other. Nail (2) two 15" x 72" OSB panels across
the 2x4 gable plate (notch around plywood gusset) and the 2x4s. Use 6d common nails.
8.
Repeat steps 4-7 to install support shelf at the front wall.
2x4- 68-1/2"
2x4- 68-1/2"
2x4- 7'
10-1/4" Block
137" Long 2x4
1.
Remove the 7' long wall braces.
2.
Butt (2) two 68-1/2" long 2x4s together. Center one 2x4-7' over the 2x4s and
secure them with 2-1/2" wood screws spaced 18" apart.
3.
Repeat to assemble another gable shelf board.