Conceived and designed as a moderately priced dock and material handling solution, the Model 6241 Service Door features full- sized 24 gauge-gauge slats and incorporates structural streel guides, full-sized headplates, structural hood, self-aligning drive bearings and Quick release guides. The commercial design features of the Model 6241 accrue into a true feature-packed, value added package.

Loading dock and material handling locations demand a street-tough rolling service door that represents an exceptional value at a moderate price.

The Model 6241 utilizes aggressive, yet innovative design approaches to deliver sensible, high-performance features that meet these demands
Unit of Measure



  • Standard sized commercial 2-1/2" interlocking flat slats in 24-gauge steel are hot-dipped galvanized, pre-painted in gray and white, and maintain high security with lighter weight and reduced cost.
  • Cast iron, malleable endlocks exceed industry expectations for performance and wear in a light industrial door.
  • Structural steel three-angle guides utilize integral bell mouths, curtain stops and Quick-release guide angles for higher security, maximum durability, faster installation times and no-hassle, simplified repair requirements.
  • Repairs are quickly and inexpensively expedited with common, readily available components.
  • Full-sized headplates provide a solid platform for chain hoist or motor operation.
  • Half-hexagonal formed hoods, pre-finished in white, deliver superior structural rigidity and high aesthetic appeal.
  • Heavy-duty, 3.5:1 chain hoists install quickly and provide a fine balance between operator effort and cycling speed.
  • Security is enhanced with plated slide locks for manual operation, or a chain keeper suitable for padlocking for chain hoist operation.
  • Value is enhanced by building real time performance expectations into time proven, reduced cost designs.



N/A Standard flat curtain flats, interlocking type, roll-formed 24 gauge steel. Lateral slat movement and curtain wear controlled by galvanized, malleable cast iron endlocks fastened to every other slat. Flat Slats: 2-1/2 inches high by 3/4 inch deep.

Bottom Bar

N/A Fabricated from steel angle. Bottom bar astragal is optional.


N/A Fabricated from three structural steel angles, bolted together to form a guide channel and mounting sngle. Quick Release guide angles include curtain stops and bellmouths integral to guide.


N/A Headplates for mounting curtain, hood and barrel assemblies fabricated from steel plate. Drive side of the door axle provided with self-aligning precision bearing .

Barrel Assembly

N/A Barrel constructed from minimum 4-1/2 inch O.D. steel pipe. Deflection under full load not to exceed 0.03 inches per foot of span. barrel provided with threaded lugs welded to barrel assembly for curtain attachment.


N/A Spring assembly fabricated with precision ball bearings supporting tension shaft assembly. Curtain weight counter balanced by oil-tempered, helically wound torsion springs, grease packed and mounted on steel torsion shaft. Springs designed to provide 10,


N/A Hood fabricated from 24-gauged steel sheet, shaped to fit within headplates.


N/A Plated slide locks furnished for manual push-up operation, Chain hoist operated doors provided with chain keeper having provision for padlock.


N/A Manual push up, chain hoist, or motor operation


N/A Curtain slats and hood hot-dipped galvanized, per ASTM A-653, G-60, with baked epoxy primer and polyester finish coat in gray and white. Guides and headplate shop painted black. Powder-coating optional. Bottom bars to be shop painted or galvanized.


N/A Provide doors designed to withstand minimum 20 pounds per square foot of windload.



N/A Provide manufacturer's standard one-year warranty from the date of plant shipment against defects in materials and workmanship.


Area Chart

Area Chart Model 6241

Clearances & Dimensions



Wood or Masonry

Wood or Masonry