Harper & Bright Designs DN33734 Assembly Instructions Manual page 11

STEP 13:
Note: Do not lock the screws of the bed slats to the outermost edge
of the bed slats, you need to leave a certain space at the edges,
STEP 14:
3
5
1
x 3
11
13
16PCS
1 5
12PCS 6PCS
3
6PCS