Manufacturer USF Fabrication Floor Access Doors
SKU: TPS-Steel
Steel Trough Frame Floor Access Door by USF

General Purpose TPS Steel Floor Access Door

U.S.F Fabricaton, Inc. T-Series Steel Floor Access Trough frame access doors are a universal solution for sidewalk, floor and utility applications where rainwater control is required. They are not for use in watertight/floodtight applications. Trough frame, Pedestrian, Single cover Flush installation in new cast-in-concrete applications, reinforced for 300 pounds per square foot (psf) loading.

Standard Specifications 

The trough frame floor access door shall be Model TPS as manufactured by U.S.F. Fabrication, Inc. with the size being specified on the plans.

Cover: 1/4-inch (6.4mm) steel diamond plate cover reinforced for 300 psf (1465 kg/m2) live load. Equipped with a steel flush lifting handle and 316 stainless steel hold-open arm with red vinyl grip that automatically keeps the cover in its open/upright position.

Frame: Trough section made from 1/4-inch (6.4mm) steel with a continuous anchor on all four sides and 1 1/2-inch (38mm) threaded drain coupling.

Hardware: 316 stainless steel hinges and tamper resistant bolts/lock nuts.

Security: Steel staple protrudes through cover for user-supplied padlock.

Finish: Cover and frame have one coat of shop primer.

Installation: Installation shall be in accordance with the manufacturer’s instructions.

Warranty: Manufacturer shall guarantee against defects in materials and workmanship for a period of five years.


  • Stainless steel horizontal springs for easy opening
  • Stainless steel watertight slamlock and other locking devices
  • Frame skirts for easy casting into a concrete top slab
  • Odor reduction gasket riveted to frame
  • Fiberglass insulation with metal liner
  • Nut rails with stainless steel sliding nuts for attaching cable holders, brackets and other hardware
  • Custom lettering
  • Stainless steel safety chains with aluminum support posts
  • Fall Trough Prevention Systems
  • Side drain threaded coupling (instead of standard bottom drain)
  • Slip resistant surface bonded to cover plate
  • Reading lid
  • Mill finish (no shop primer)
  • Hot dipped galvanized finish
  • All 304 stainless steel material
  • All 316 stainless steel material



Frame Opening Overall Size Weight
24" x 24"
32" x 32"
24" x 30"
32" x 38"
24" x 36"
32" x 44"
30" x 30"
38" x 38"
30" x 36"
38" x 44"
30" x 48"
38 x 56
36" x 36"
44" x 44"
36" x 48"
44" x 56"
42" x 42"
50" x 50"

Custom sizes and special orders are available.

Additional Product Literature
Data Sheet