
4
Step 3: Install the stair treads starting from the bottom of the stair unit and work your way to the top of the stair
unit. Start by using stair tread with hanger bracket (0105-0010) and four 3/8” x 2” hex head bolts
(0090-0048) and four split lock washer (0090-0210). Assemble tread so that the 3 drilled holes on the
edge face the top of the stair unit. Do not tighten bolts fully until the stair unit is completely assembled.
Step 4: Install the top step stair tread with hanger bracket and angle iron filler strip (0105-0014) and four
3/8” x 2” hex head bolts (0090-0048) and four split lock washer (0090-0210). Assemble tread so that
the angle iron filler strip faces the top of the stair unit.
Step 5: Ensure that the stair unit is sitting on a level surface then go around and tighten all bolts.