Extreme Networks BlackDiamond 10808 Installation Manual page 23

The rack should be attached to the wiring closet floor with 3/8-inch (9.5 mm) lag screws or equivalent
hardware. The floor under the rack should be level within 3/16-inch (5 mm). Use a floor-leveling
cement compound if necessary or bolt the racks to the floor as shown in Figure 4.
Secure to floor
with 3/8-inch lag screws or bolts
SPG_007
Brace open distribution racks if the channel thickness is less than 1/4 inch (6.4 mm).
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