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How do I determine what type of floor access door is right for my application?
U.S.F. Fabrication manufactures different styles of floor access hatches for all types of applications. The Design Wizard on this website can help you determine which type door is required for your application. Also, under the Products tab you can go to the floor access door section of our website for detailed descriptions, drawings, specifications and brochures for all types of doors. Please e-mail us or call 1-800-258-6873 if you don’t see the type of door that you require.
What is the meaning of the phrase defining occasional traffic H20-44 doors -- "intended for off-street locations that may occasionally receive AASHTO H20-44 wheel loads (16,000 lbs. over 10" x 20" area + 30% impact factor") in your catalog?
All our aluminum H20 floor doors are capable of supporting an AASHTO H20-44 wheel load under “occasional traffic” conditions. However, aluminum H20 doors cannot withstand the stress of continuous traffic or the impact of direct traffic common to roadways. Call 1-800-258-6873 if you require a door for these type of applications.
What features are standard on USF Fabrication floor access doors?
The below features are standard on all steel & aluminum floor access doors:
- 316 stainless steel hinges
- 316 stainless steel tamperproof nuts & bolts
- 316 stainless steel automatic hold-open arm w/ secondary latch
- A lifting handle that lays flush with the top of the door
- A protective plastic covering on aluminum cast-in doors
Aluminum trough frame doors (Types: TPS, TPD, THS, THD) include an odor reduction gasket. All steel & aluminum pedestrian doors (Types: APS, APD, TPS, TPD, BPS, BPC, FPS and APS & APD RETROFIT) include a staple for a padlock. All “occasional traffic” steel & aluminum H20 doors (Types: AHS, AHD, THS, THD) include a watertight 316 stainless steel slamlock. Note: Optional features for steel & aluminum doors can include: spring lift assist, recessed padlock staple, bituminous coating on outside of frame, slip resistant surface bonded to cover plate, frame skirts, keyed cylinder lock, security bolt, safety chains, Hatch Safety Nets, Hatch Safety Grates, insulation, frame cushion, nut rail and special lettering. These features are available for an additional cost.
Why doesn't USF Fabrication supply all doors with slamlocks and spring assist like some other manufacturers do?
U.S.F. Fabrication, Inc. manufactures all floor access doors to meet our customers’ specific requirements. Many times a door is very light and does not require springs for lift assist. On small doors the cost can increase by as much as 1/3 by adding these features.
What optional features does USF Fabrication offer to secure doors from unauthorized entry?
The following security alternatives are available: Slamlock with Tamper Resistant Hex-Head Security Plug, Recessed Padlock Box (standard and oversized), Keyed Cylinder Lock, Penta-head Tamper Resistant Bolt, McGard Tamper Resistant Bolt, Carriage Bolts (used to fasten hinges), Safety Grate with Padlock Staple, and Concealed Bolting (on retro-fit door frames). Also, customers can provide other security devices (i.e., 2-Position Limit Switch) to be installed on doors and covers.