Expanded Steel Grating

Expanded metal grating is the most practical and economical way to assure strength, safety, and a non-skid surface. Expanded metal grating is ideal for use on plant runways, working platforms, and catwalks, as it is easily cut into irregular shapes and can be installed quickly by welding or bolting. To select the proper metal mesh for your application consult the load and deflection tables.

Expanded Steel Grating
Expanded Steel Grating

Classification Variety: small, medium and heavy expanded metal mesh. Expanded aluminum mesh, expanded platinum filtration mesh, expanded brass mesh, expanded copper mesh, expanded stainless steel mesh, expanded nickel mesh. Opening in the shape of diamond, hexagonal or special shape.

Each sheet is produced from low carbon steel plates up to 5/16" thick. The junctions of the strand and bond form a ridged surface for improved tractions. Grating is formed like a truss so that every inter-connecting strand acts as a structural member distributing the load stress in several directions across the supporting frame.

The angular position of the strand and the bond makes the expanded metal grating stronger in deflection than steel plate material in original form.

This product is available only in the regular or standard type and is not flattened.

Typical applications include long length or catwalk grating - usually in 10 ft. lengths by 2 or 3 ft. widths. It is also ideal for flooring, platforms and stair treads, where principal use is for light storage and foot traffic.

Expanded Metal Grating can be made from carbon steel, stainless steel or aluminum in styles from 1/4" to 1 1/2".

Standard steel expanded grating specifications:
Size and Style Weight Per Sq. Ft. Diamond Size in Inch Overall Thickness Standard Sheet Size
Width (SWD) Length (LWD)
1/4-#18 1.14 .25 × 1.0 .147 48 96
1/2-#20 .43 .500 × 1.20 .140 48 96
1/2-#18 .70 .500 × 1.20 .172 48, 72 96, 120
1/2-#16 .86 .500 × 1.20 .175 48, 72 96, 120
1/2-#13 1.47 .500 × .100 .204 48, 72 96
3/4-#16 .54 .923 × 2.0 .210 48, 72 96, 120
3/4-#13 .80 .923 × 2.0 .205 48, 72 96, 120
3/4-#10 1.20 .923 × 2.0 .290 48 96
3/4-#9 1.80 .923 × 2.0 .310 48, 72 96, 120
1-#16 .44 1.00 × 2.40 .192 48 96
1-1/2-#16 .40 1.33 × 3.00 .230 48 96
1-1/2-#13 .60 1.33 × 3.00 .242 48, 72 96, 120
1-1/2-#10 .79 1.33 × 3.00 .284 48, 72 96, 120
1-1/2-#9 1.20 1.33 × 3.00 .312 48, 72 96, 120
1-1/2-#6 2.50 1.33 × 3.00 .433 48, 72 96, 120
Expanded grating specifications:
Bearing Bars Cross Bars Weight in pounds per sq. ft.
Type 1A Type 1B Type 2A Type 2B
3/4 × 1/8 1/4 4.00 4.64 4.96 5.60
3/4 × 3/16 1/4 5.68 6.32 7.12 7.76
1 × 1/8 1/4 5.15 5.79 6.44 7.08
1 × 3/16 1/4 7.36 8.00 9.28 9.92
1-1/4 × 1/8 1/4 6.20 6.84 7.79 8.43
1-1/4 × 3/16 1/4 9.04 9.68 11.44 12.08
1-1/2 × 1/8 1/4 7.36 8.00 9.28 9.92
1-1/2 × 3/16 5/16 10.94 11.08 13.82 14.68
1-3/4 × 3/16 5/16 12.62 13.48 15.98 16.84
2 × 3/16 5/16 14.30 15.16 18.14 19.00
2-1/4 × 3/16 5/16 15.87 16.74 20.16 21.03
2-1/2 × 3/16 5/16 17.55 18.42 22.32 23.19