EASY COOPS Chicken Coop Plan 8x12 Assembly Instructions Manual page 17

STEP 14
Assemble The Roost
You will need to assemble two roosts.
14.1 Assemble the roost using 1 1/2" x 1 1/2" and 1 1/2" x 2 1/2" pressure-treated
material. You will need two boards cut to 4'-3/4" and three boards cut to 3'-3 3/4".
14.2 Connect the beams with 2" wood screws.
14.3 Install the roosts at the studs with the help of 3" screws.