Many
of our products including Flattened Expanded Metal &
Standard
Expanded Metal Now Available In Titanium.
Mechanical Metals Offers all types of metal grating products, in Steel, Stainless Steel, or Aluminum, as well as other metal gratings such as Perf-O Grip, Grip-Strut and Fiberglass Grating. Although most metal grate products are used as a walking surface, there are endless creative applications. Please refer to chart listed below in selecting the correct material for your project.
Bar Grating Stock List
|
Welded
|
Galvanized
|
Painted
|
Stainless
|
Aluminum**
|
|
1"
x 1/8"
|
1"
x 1/8"
|
1"
x 3/16"
|
1"
x 3/16"
|
1"
x 3/16"
|
|
1"
x 3/16"
|
1"
x 3/16"
|
1
¼" x 3/16"
|
1
½" x 3/16"
|
1
¼" x 3/16"
|
|
1
¼" x 3/16"
|
1
¼" x 3/16"
|
1
½" x 3/16"
|
|
1
½" x 3/16"
|
|
1
½" x 3/16"
|
1
½" x 3/16"
|
|
|
|
|
Smooth
Serrated |
Smooth
Serrated |
Smooth
Serrated |
Mill,
Sand
Smooth, Serrated |
|
How To Order Bar Grating
- Specify type of grating
- Panel size
- Quantity
- Size of bearing bars
- Spacing of bearing and cross bars
- Type of surface (plain, serrated, grit, grooved)
- Span (direction of bearing bars)
- Dimension tolerances
- Banding requirements, if any
- Type of material (steel, aluminum, etc.)
- Finish (paint, galvanized, special)
- Type of nosing-stair treads
Other grating available for sale, please inquire:
- Fiberglass
- Grip strut (Galvanized, aluminum, stainless)
- Stair treads and fasteners
- Riveted
- Ladder rungs
- Safety Gratings
- Grid steel
- Anchor devices
- Cast grating (trench & tree grates)
- Heavy weld
Standard
Nomenclature And Vocabulary
At Mechanical Metals we use a form of NAAMM alpha-numeric designation for bar spacing and manufacturing identification. The first number center-to-center bearing bar spacing in 1/16ths of an inch*. A letter designates the method of manufacturing. The last number details center-to-center cross bar spacing in whole inches (usually 4" or 2"), or rivet spacing (usually 3½", 5", or 7").
Methods of manufacture and their letter designations used in this catalog include:
- SG-Swagged rectangular bar
- SGF-Swagged flush top
- SGI-Swagged I-Bar
- W-Welded steel
- R-Riveted (Steel)
- AR-Riveted (Aluminum)
For Example:
19-W-4
Bearing Bars 19/16" (or, 1-3/16") c.c.
Welded Steel Construction
Cross Bars 4" c.c.15-SGI-2
Bearing Bars 15/16" c.c.
Swagged I-Bar
Cross Bars 2" c.c.Other Bearing Bar Spacings commonly used
throughout the industry are designated thus:38 W-4 (or 2) - Bearing Bars 38/16" c.c. (2-3/8" c.c.)
30 W-4 (or 2) - Bearing Bars 30/16" c.c. (1-7/8" c.c.)
22 W-4 (or 2) - Bearing Bars 22/16" c.c. (1-3/8" c.c.)
11-SG-4 (or 2) - Bearing Bars 11/16" c.c.
7-SG (or 2) - Bearing Bars 7/16" c.c.
18-R-7 (or 3½) - Bearing Bars 18/16" Face to Face (1-1/8")**
37-R-5 - Bearing Bars 37/16" Face to Face (2-5/16")**
12-R-7 (or 3½) - Bearing Bars 12/16" Face to Face (¾")**** Note that riveted grating marking indicates space between bars
Canadian Customers please call 1-800-249-5470
