Recessed Aluminum Floor Hatch (Architectural Flooring)

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Williams Brothers - WB Type TER & TRD Series Recessed Aluminum Floor Hatch | Door (Architectural Flooring)

Recessed Aluminum Floor Hatch for a Variety of Architectural Flooring Materials!

Steel non-drainage single leaf covers are constructed of 1/4″ diamond pattern plate and reinforced for a 150 lb/ft2 (732 kg/m2) live load. Features zinc plated and chromate sealed hardware, concealed hinges, and the T-CAM┬« lifting system for ease of operation. By Bilco.


  • Cover: 1/4″ Reinforced Steel Smooth Plate with 1″ Recessed Pan for Flooring Material (specify type, thickness and weight)
  • Frame: 1/4″ Steel Extruded Aluminum Frame with Built-in Anchor Flange Around the Perimeter
  • Finish:┬áMill Finish Aluminum with Bituminous Coating Applied to Exterior of Frame
  • Latch: Type 316 Stainless Steel Slam Lock with Fixed Interior Handle and Removable Exterior Turn/Lift Handle (latch release is protected by a flush, gasketed, removable screw plug)
  • Hinges: Continuous Heavy-duty Type 316 Stainless Steel Hinge
  • Lift Assistance: Compression Spring Operators Enclosed in Telescopic Tubes
  • Automatic Hold-open Arm: Automatic Hold-open Arm with Grip Handle Release
  • Hardware: Zinc Plated/Chromate Sealed
  • Loading: 150 psf (732 kg/m2) Live Load


  • Custom Sizes: Available on Request

Models Available

  • TER-1 Aluminum – 24″ x 24″
  • TER-2 Aluminum – 30″ x 30″
  • TER-3 Aluminum – 36″ x 30″
  • TER-4 Aluminum – 36″ x 36″

Manufactured by Bilco for The Williams Brothers Corporation of America. MADE IN USA.