Serrated Bar Metal Drain Drainage Steel Grating Plate With Steel
Steel bar grating is manufactured from ASTM A-1011 mild carbon
steel and is available in three distinct products: type "W" welded bar grating, type "DT" dovetail pressure locked grating, and type "SL" swage locked grating. All three products are available with
bearing bar spacing ranging from 19/16" (1-3/16") to 7/16" on
center and cross bars at either 4" or 2" on center.
Each product has a standard plain surface or may be specified with
optional serrated or Algrip surfaces.
Finish options include bare steel, painted, hot dip galvanized, or
specialty coatings. The steel bar grating load tables provide
detailed specification information related to these products.
Our most economical steel grating products, type "W" welded steel gratings are manufactured by forge welding
rectangular bearing bars and drawn cross bars. This welding process
provides a positive fused connection providing years of service
under the most demanding conditions. Type 19-W-4 steel grating is
our most popular product and is recommended for nearly all
industrial flooring applications.
With nearly 80% open area, 19-W-4 allows for the easy passage of
dirt, debris, snow, and liquids and is essentially self-cleaning.
Type "W" gratings are available in close mesh, ADA conforming spacings
11-W-4 and 7-W-4 which are commonly used in public areas. When
specifying type 11-W-4 for ADA applications, 3/16" thick bearing
bars must be specified. (114)
Welded Heavy Duty Gratings are designed to service applications
subject to heavy rolling and static loads such as highways, plant
floors, loading docks, inlet covers, and airports. Since conditions
can range from smaller forklift to large truck or aircraft traffic,
heavy duty gratings are manufactured in a wide range of bar sizes
Vehicular loads are designed in conformance with current AASHTO
specifications for classifications H-15 through H-25. Automobile
and forklift loads are similarly evaluated with loads calculated
and distributed in accordance with the "Maximum Traffic Conditions"
presented here. (92)
If your application is not adequately addressed by these load
conditions, please contact our Engineering Department and we will
gladly assist in the selection of an appropriate heavy duty grating
for your specific need.
Materials & Spacings
Heavy duty gratings are manufactured in carbon steel and 300 series
stainless steels. Carbon steel products are available bare (no
finish), painted with manufacturers standard paint, or hot dip
galvanized. Stainless steel products are available mill finish,
commercially cleaned, or electro-polished. Below you will find a
table of spacings for our most popular products. (91)
Grating Pacific fabricated Stair Treads are manufactured in the
full range of products offered by Grating Pacific. Carbon steel,
aluminum and stainless steel treads are produced with a variety of
defined, visible nosings, and pre-punched end or carrier plates,
ready for bolting to the stair stringers.
Used in many architectural, commercial, and industrial
applications, Grating Pacific's durable, safe, and slip resistant
stair treads are available in many styles, materials and diverse
finish options to suit your needs.
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5,
50x5, 65x5, 75x6, 75x10,100x10mm etc;
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc.
US standard: 1'x3/16', 1 1/4'x3/16', 1 1/2'x3/16',
1'x1/4', 1 1/4'x1/4', 1 1/2'x1/4', 1'x1/8', 1 1/4'x1/8',
1 1/2'x1/8' etc.
|2||Bearing Bar Pitch|
12.5, 15, 20, 25, 30, 32, 35, 38, 40, 60, 80mm etc.
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
|3||Twisted Cross Bar Pitch|
50, 60, 76, 100, 120mm etc.
US standard: 2' & 4' etc.
|4||Surface Treatment||Black, self colour, hot dip galvanized, painted, spray coating|
|5||Grating Style||Plain / Smooth, Serrated /teeth, I bar, serrated I bar|