4.
Attach remaining corner brackets (E)
to the remaining outer rail (B) (Fig. 4).
5.
Attach the assembly from the previous step to the larger assembly (Fig. 5).
6.
Attach corner brackets using l_b and l_c.
Attach mid beams using l_b and tighten all mid beam screws (12 total). (Fig 6)
4
Fig. 4
Fig. 5
Fig. 6