In the installation of an access floor, there are certain criteria that should be followed. These are listed in the general order of sequence.
STEP 1. Check the room dimensions and configuration against approved drawings. Using a builder's transit or laser, shoot in the areas to receive access floor to determine how much variation there is in the level of the subfloor within the room and at the termination points, such as elevator and door sills and concrete ledges. If the floor cannot be installed per your drawings, notify the general contractor superintendent for agreement on corrective action. The FFH may have to be changed.
Step 2. Determine Starting Points