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Aluminum Bar Grating

aluminum bar grating
photo of aluminum bar gratingAluminum Bar Grating is a good choice when a lightweight, corrosion resistant material is desired. Choose from many options such as: flush top, riveted, rectangular bar, plank, & I-bar aluminum bar grating products.

The most common method of manufacturing aluminum bar grating is through a process known as pressure locking. Pressure locked grating as defined by the NAAMM Metal Bar Grating Manual is “Grating in which the cross bars are mechanically locked to the bearing bars at their intersections by deforming or swaging the metal.” Direct Metals has taken advantage of the most modern technology available to provide a permanently attached pressure locked joint which will give long lasting life under normal service conditions.

Complete aluminum bar grating section of our catalog (PDF)

Grating Mini Catalog (PDF)

Aluminum Bar Grating section of our Mini Grating (PDF)

Aluminum Rectangular Bar:
aluminum rectangular bar gratingA type of pressure locked aluminum bar grating made by permanently attaching cross bars to bearing bars through a pressure applied swaging process. Bearing bar sizes range from 1” x 1/8” through 2 1/2” x 3/16” in 1/4” increments. Bearing bar spacing of 1 3/16”, 15/16”,11/16” and 7/16” c.c., with cross bar spacing of 4” or 2” are available. Where skid resistance is desired, a serrated surface can be provided.

Aluminum Rectangular Bar Load Table Charts (PDF)
19-SG-4, 3 Part Specification (PDF)
15-SG-4, 3 Part Specification (PDF)
11-SG-4, 3 Part Specification (PDF)
7-SG-4, 3 Part Specification (PDF)

Aluminum Flush Top:
aluminum flush top bar gratingA type of pressure locked grating in which the cross bars are in the same plane relative to the top surface of the aluminum bar grating. Bearing bar sizes range from 1” x 1⁄8” through 21⁄2” x 3⁄16” in 1⁄4” increments. Bearing bar spacing of 13⁄16”, 15⁄16”,11⁄16” and 7⁄16” c.c. and cross bar spacing of 4” or 2” are available. Where skid resistance is desired, a serrated surface can be provided.

Aluminum Flush Top Load Table Charts (PDF)
19-SGF-4, 3 Part Specification (PDF)
15-SGF-4, 3 Part Specification (PDF)
11-SGF-4, 3 Part Specification (PDF)
7-SGF-4, 3 Part Specification (PDF)

Aluminum Plank:
aluminum plank bar gratingA type of extruded grating which is available in 6" wide sections, and either plain sided or interlocking. Aluminum plank bar grating can be provided in sections up to 26'0" in length, or fabricated per plans and specs. Plank grating is available unpunched as an economical and structurally superior substitute for aluminum checkerplate, or with a variety of punch/patterns.

Aluminum Plank Options:

Punch Pattern:
Unpunched, Rectangular, Square, Round
Plank Section Availability:
Heavy Duty (Plain Sides), Heavy Duty (Interlocking Sides), Light Series (Plain Sides), Reefer (Plain Sides), Reefer (Interlocking Sides)

Aluminum Plank Load Table Charts (PDF)
Rectangular Punched, 3 Part Specification (PDF)
Square Punched, 3 Part Specification (PDF)
Unpunched, 3 Part Specification (PDF)

Aluminum I-Bar:
aluminum i bar gratingA type of pressure locked grating which utilizes an "I" shaped bearing bar ranging in size from 1" x 1/4" through 2 1/2" x 1/4" in 1/4" increments. Bearing bar spacing of 1 3/16", 15/16" 11/16", and 7/16" c.c. and cross bar spacings of 4" or 2" are available.

The I-Bar design takes advantage of the aluminum extrusion process by placing the metal where it is most effective - at the outermost edge - while reducing the thickness for the neutral axis web. This design consideration allows the aluminum I-bar grating the same load carrying capacity at less weight per square foot than rectangular bar therefore resulting in a cost savings.

Aluminum I-Bar Load Table Charts (PDF)
19-SGI-4, 3 Part Specification (PDF)
15-SGI-4, 3 Part Specification (PDF)
11-SGI-4, 3 Part Specification (PDF)
7-SGI-4, 3 Part Specification (PDF)

Aluminum Riveted:
aluminum riveted bar gratingA type of aluminum grating which combines straight bearing bars and bent connecting bars riveted together at their contact points. Riveted grating, although being the oldest style of industrial footwalk, is still the choice of many engineers due to its reliability and durability. All popular sizes and spacings of riveted grating are sold by Direct Metals with an emphasis on quality and service.

Aluminum Riveted Load Table Charts (PDF)
18-AR-7, 3 Part Specification (PDF)
18-AR-3-1/2, 3 Part Specification (PDF)
12-AR-7, 3 Part Specification (PDF)
12-AR-3-1/2, 3 Part Specification (PDF)

Aluminum Press Lock:
aluminum press lock Aluminum Press Lock is bar grating made up of interlocking perpendicular bars. Hydraulic pressure is used to bond the slotted bars together, locking the deep cross bar into the notched bearing bar. This product has a smooth, clean look due to a flush top rectangular cross bar.

Aluminum Press Lock bar grating offers strong lateral stability and is used in architectural design because of its clean look and tight spacing. The 1/4" & 1/2" openings conform to the “Americans with Disabilities Act” (July, 1991). Slip resistant surfaces are available upon request.

Aluminum Press Lock Load Table Charts (PDF)
19-DT-4, 3 Part Specification (PDF)
15-DT-4, 3 Part Specification (PDF)
11-DT-4, 3 Part Specification (PDF)
7-DT-4, 3 Part Specification (PDF)

Aluminum Lite Bar:
aluminum lite bar Aluminum Lite Bar is a bar grating that has an unmatched strength-to-weight ratio. Its lightness reduces freight cost and is an economical solution used in several applications such as:
  • Walkways
  • Vents
  • Air Grilles
  • Sun Screens
  • Security Screens
  • Ceiling Tiles
Aluminum Lite Bar meets ADA requirements & NAAMM standards.

Aluminum Lite Bar Load Table Charts (PDF)
19-SGLi-4, 3 Part Specification (PDF)
15-SGLi-4, 3 Part Specification (PDF)
11-SGLi-4, 3 Part Specification (PDF)
7-SGLi-4, 3 Part Specification (PDF)
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