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Type SM - Surface Mount with Angle FrameZoom In

Type SM - Surface Mount with Angle Frame

Provides a cost effective solution for access to underground vaults that do not require the use of a flush-mounted door. The door features a concealed internal mounting flange that makes installation easy and secure. Its gasketed, over-lapping cover design makes the door ideal for applications where the infiltration of contaminants is a concern.


Floor Access Door Model: Type SM
Standard Features and Benefits
  • Angle frame with internal surface mounting flange allows an installer to simply position the door and bolt it into place. The concealed mounting fasteners provide a safe and secure installation
  • Weathertight perimeter gasketing prevents dirt, debris, and other contaminants from entering the opening
  • Engineered lift assistance for smooth, easy one-hand door operation
  • Automatic Hold Open arm locks the cover in the open position to ensure safe egress
  • Concealed stainless steel hinges are designed to be tamperproof when the door is in the closed position
  • Available in mill finish aluminum construction
Optional Features
  • Fully welded padlock hasp allows the areaway to be secured against intrusion
  • Safety posts & chains provide areaway fall protection when the cover is in the open position (shown on door at the top of the page).
  • A stainless steel stop chain can be specified in place of the hold open arm and gas strut lifting mechanism. (Option not for use in personnel access applications)
Guide Specifications
  • Material: 1/8" (3mm) aluminum plate cover and 1/4" (6 mm) aluminum angle frame
  • Cover: Diamond-pattern tread plate reinforced for 105 psf (513 kg/m2) live load.
  • Frame: 1/4" x 3" x 3" (6.4mm x 76mm x 76mm] angle frame with internal mounting flange and 7/16" (11mm) diameter anchor holes.
  • Gasket: Extruded EPDM rubber gasket permanently adhered to cover.
  • Hinges: Heavy-duty, stainless steel pintle hinges with 3/8" (9 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. (For added security, specify: full welded exterior padlock hasp).
  • Lift Assistance: Gas strut lifting mechanism with powder-coat finish. Automatic hold-open arm with grip handle release.
  • Finish: Mill Finish aluminum
  • Hardware: Type 316 stainless steel unless otherwise specified.



Standard Sizes and Shipping Weights
Size (width x length) Model Number Weight
inches mm lbs. kg
24 x 24 610 x 610 SM-1 61 28
30 x 30 762 x 762 SM-2 71 32
36 x 30 914 x 762 SM-3 78 35
36 x 36 914 x 914 SM-4 86 39
42 x 42 1067 x 1067 SM-5 99 45