Access Floors


To secure access floors.


Install braces and anchor the existing pedestals. When floor height exceeds 12″, install a steel brace to every third pedestal 8′ on center.

Supplies Required

  • Expansion bolts—3/8″ diameter
  • Machine bolt—3/8″ diameter
  • Angle—1-1/2″ x 1-1/2″ x 1/4″


  1. Install four expansion bolts through each pedestal base to the floor below (concrete floors).
  2. Install a steel brace with a machine bolt or weld between the diagonal steel brace and the pedestal head with expansion bolts to the floor below.
  3. Locate braces at 8′ on center. At each location, install two braces in perpendicular directions.
  4. Secure pedestal head to the stringer or to each floor panel corner with one machine bolt.

When anchoring to post-tensioned slab, locate and avoid penetrating reinforcing.

Short Pedestal System
Source: Noson, Perbix, SSD

Braced Pedestal System
Source: Noson, Perbix, SSD