Mild Steel Heavy Duty Steel Grating Platform Free Sample Twisted
Bar
Heavy-Duty uses thicker (1/4", 5/16", 3/8") and deeper bearing
bars. Although the tables show bars as deep as 6", deeper grating
can be custom fabricated on request. Heavy-Duty is used for
airfields, highways, industrial floors, ramps, docks, reinforced
concrete areas and specialty applications.
Heavy-Duty Welded Grating has the strength for heavy-duty load
areas such as airfields, highways, industrial plants, truck and bus
terminals, parking lots and railroad yards. Common uses are
flooring, driveways, subway and tunnel ventilation grilles, curb
inlet grates, ramps, docks, etc.
It is a sturdy grating to carry loads and maintain the same level
over many years of use. Whenever rolling wheel loads are to be used
over the grating, we recommend that the grating be load banded to
add lateral strength. Serrations are available on bars up to 3/8"
thick to provide additional traction for rolling loads.
Standard heavy-duty bar grating is resistance-welded for
durability, strength and safety using an automated
electric/hydraulic welding process. High temperatures, combined
with high pressure, fuse the bearing bars and cross bars together
to form a permanent joint.
| Bar Size Inches: | Weight Per Sq.Ft: | Sect.Prop.Ft. Of Width: |
| 1-1/4x1/4 | 12.08 | Sx=0.642/1x=0.420 |
| 1-1/4x3/8 | 17.55 | Sx=1.009/1x=0.63 |
| 1-1/2x1/4 | 14.35 | Sx=0.969/1x=0.726 |
| 1-1/2x5/16 | 17.55 | Sx=1.211/1x=0.908 |
| 1-1/2x3/8 | 20.86 | Sx=1.452/1x=1.089 |
| 1-3/4x1/4 | 16.52 | Sx=1.318/1x=1.153 |
| 1-3/4x3/8 | 24.16 | Sx=1.977/1x=1.730 |
| 2x1/4 | 17.56 | Sx=1.722/1x=1.722 |
| 2x5/16 | 23.13 | Sx=2.152/1x=2.152 |
| 2x3/8 | 27.47 | Sx=2.583/1x=2.583 |
| 2-1/4x1/4 | 20.86 | Sx=2..179/1x=2.451 |
| 2-1/4x3/8 | 30.78 | Sx=3.268/1x=3.677 |
| 2-1/2x1/4 | 23.13 | Sx=2.690 / 1x=3.362 |
| 2-1/2x5/16 | 28.61 | Sx=3.362 / 1x=4.203 |
| 2-1/2x3/8 | 34.08 | Sx=4.035 / 1x=5.044 |
| 3x1/4 | 28.89 | Sx=3.874 / 1x=5.810 |
| 3x5/16 | 35.50 | Sx=4.843 / 1x=7.263 |
| 3x3/8 | 42.11 | Sx=5.811 / 1x=8.716 |
| 3-1/2x1/4 | 33.33 | Sx=5.272 / 1x=9.226 |
| 3-1/2x3/8 | 48.62 | Sx=7.909 / 1x=13.840 |
| 4x1/4 | 37.67 | Sx=6.886 / 1x=13.772 |
| 4x5/16 | 46.45 | Sx=8.608 / 1x=17.215 |
| 4x3/8 | 55.23 | Sx=10.330 / 1x=20.660 |
| 4-1/2x1/4 | 42.11 | Sx=8.716 / 1x=19.610 |
| 4-1/2x3/8 | 61.84 | Sx=13.074 / 1x=29.416 |
| 5x1/4 | 46.45 | Sx=10.761 / 1x=26.901 |
| 5x5/16 | 57.40 | Sx=13.451 / 1x=33.626 |
| 5x3/8 | 68.46 | Sx=16.141 / 1x=40.352 |
| 5-1/2x1/4 | 50.89 | Sx=13.020 / 1x=35.804 |
| 5-1/2x3/8 | 74.69 | Sx=19.530 / 1x=53.707 |
| 6x1/4 | 55.23 | Sx=15.495 / 1x=46.485 |
| 6x5/16 | 68.46 | Sx=19.369 / 1x=58.106 |
| 6x3/8 | 81.57 | Sx=23.343 / 1x=69.127 |
| Note: Sx = (Sec. Mod. Ft Width) 1x = (Mom. of Inertia Ft. Width) |
