Bottom Rolling Door2020-04-09T02:05:54+00:00

Architectural Specifications

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“Only through the wealth of experience we have here, can we help todays architects to meet the demands of tomorrows clientele.”

Paul Blake, Project Director


Division 08 34 16.10 – Steel sliding hangar doors

Door Framing

  • Intended design wind speed for our hangar door is per local code. Primary and secondary framing of hangar door, upper guide rail assemblies shall comply, where applicable, with loads and specifications in accord with latest American Institute of Steel Construction Specifications of Standard Structural Sections.

  • Hangar Door jambs shall be hot rolled structural channels per ASTM specification A36. Deflection at maximum wind loading to meet architects requirements.
  • Door girts shall be either cold formed or hot rolled structural tubing per ASTM A-500 Grade B, properly spaced to accommodate specified wind load conditions as required. Design girts for simple span conditions and size to permit exterior and interior sheeting and blanket insulation without causing jamb seal interference, abrasion or wear.

Upper Guide Rail or Top Track

  • Upper guide rail shall be a wide flange “I” beam shape and shall conform to ASTM Specification A-36 or better. Size, weight and length shall be as required for door design, wind loads and building requirements. Bottom flange of the upper guide rail shall act as a retainer in conjunction with upper guide roller assemblies so as to prevent doors from accidental disengagement. Web of rail shall be sized to accommodate building deflection, permitting unopposed operation of doors under maximum live load conditions.

  • Upper Track brackets shall be wide flange beams, supporting upper guide rails on a maximum of 10′-0″ centers. These are typically provided by metal building.

  • Closure plate shall be 14 gage galvanized steel sheets sandwiched between guide rails and track brackets so as to act as a soffit, a diaphragm to help distribute tributary wind loads of doors into building structure, and as a flat surface at the top door seals.

Upper Guide Rollers / Top Guides

The upper guide roller assemblies are in pairs at both ends of each door panel with horizontal polyurethane rollers, operating perpendicular to the web of upper guide rails.

There are two types of upper guide rollers; telescoping or fixed:

  • Telescoping rollers offer a customizable +/- vertical deflection to accommodate live load in the building. 

  • Fixed rollers offer a fixed vertical deflection, typically less than +2″/-2″.

Bottom Rail 

  • Anchor bolts shall be suitable for use intended with double nuts for leveling bottom rail supports. Anchor bolts and nuts shall be ASTM Specification A307.

  • Rail supports shall be factory cut to size and punched hot rolled angles of a minimum yield strength of 36,000 psi for leveling and supporting bottom rails to prevent movement during normal erection, concrete pouring and finishing operations.

  • Bottom rail shall be ASCE specification rail (Size, weight and length shall be as required for door design and wind loads) of proper weight to accommodate design, thrust and weight loads for each specific installation.

Bottom rollers / wheels

  • Each wheel shall be steel, minimum A-36, and of adequate size (size, weight and length shall be as required for door design and wind loads) to be easy rolling and designed to withstand all radial and thrust loads imposed by dead loads and wind pressure on the door. We do not use “V” groove or caster type wheels.

Motors & Controls

We offer manual or motor operated door systems. All our motor operators can be disengaged and operated manually if power to the door is lost.


There are two types of motor operator available:

  • External unit.

  • Specifications on application.

  • Internal unit.

  • Specifications on application.

Weather Seals

  • Weather seals shall be minimum 2-ply fabric reinforced neoprene rubber designed to provide a weather tight door seal around the entire perimeter of the door when the doors are in their closed position.

  • Spaces between and around each door leaf, jamb, head and still shall have seals mounted on exterior side of door center line to help resistance from penetration of rain, snow, sand and dirt.

  • Doors that utilize a telescoping top guide will have a floating weather seal system included.


  • Hangar door will have a 5-year structural warranty against all defects in material and workmanship.

  • All electrical components shall have a standard 1-year warranty against all defects in materials.

These specifications are provided as an example only and are subject to change.
Refer to your AeroDoor bid for the most accurate and complete.