Product Details

36" x 36" - Aluminum Drainage Door - H20 Loading

Constructed with a channel frame for use in exterior applications or in those situations where there is concern of water or other liquids entering the access opening. Type J-AL H20 floor access doors are reinforced for AASHTO H-20 wheel loading and feature aluminum construction, type 316 stainless steel hardware, and engineered lift assistance for easy one-hand operation. Available in a number of standard single leaf and double leaf (Type JD-AL H20) sizes and special sizes can be specified.

Product Specifications Download Cut Sheet <


Floor Access Door Models: Type JAL-H20, JDAL-H20 (double leaf)
Standard Features and Benefits        
  • Standard Type 316 Stainless Steel Hardware
  • Engineered with lift assistance for smooth, easy one-hand door operation, regardless of size
  • Automatic hold-open arm locks the cover in the open position to ensure safe egress
  • Constructed with corrosion resistant materials to provide many years of trouble free, dependable service
  • Heavy-duty construction and positive latching mechanism help to prevent unauthorized access
  • Exclusive 25-year warranty
      Watch Product Video
This short clip demonstrates the safe and easy operation of a large Bilco door reinforced for H-20 wheel loading.
Available in a number of standard and special sizes to satisfy any requirement
Guide Specifications
  • Material: 1/4" (6mm) aluminum cover and extruded aluminum frame
  • Cover: Diamond-pattern tread plate reinforced for H-20 wheel loading. Designed for installation in off street locations where the door is not subjected to high density, fast moving traffic. Structural calculations available upon requested.
  • Frame: Extruded aluminum channel frame with bend down anchor tabs around the perimeter. A 1-1/2" (38mm) drain coupling is welded under the frame for a pipe connection to a dry well or disposal system.
  • Hinges: Heavy forged Type 316 stainless steel hinges with 1/4" (6 mm) type 316 stainless steel hinge pins.
  • 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.
  • Lift Assistance: Compression spring operators enclosed in telescopic tubes. Automatic hold-open arm with release handle automatically locks cover(s) in the open position.
  • Finish: Mill Finish aluminum with a bituminous coating applied to the exterior of the frame
  • Hardware: Type 316 stainless steel throughout.
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BILCO 36 x 36 - Aluminum Drainage Panel - H20 Loading- Bilco
SKU # J-4ALH20-36-36

36" x 36" - Aluminum Drainage Panel - H20 Loading- Bilco