Heavy Duty Hot Dipped Galvanized Steel Grating With Welded Pressure
Steel Bar Grating with bearing bars thicker than 3/16" is
considered to be "Heavy Duty" and carries the designation prefix
"Type HD". Available bar thicknesses are 1/4" (6.4mm) , 5/16"
(7.9mm) and 3/8" (9.5mm) in either plain or serrated surface.
Standard depths range from 1" (25mm) up to 4" (102mm), although
larger sizes are available upon request.
Tru-Weld Heavy Duty Steel Bar Grating is commonly used for floor
trenches and sump covers exposed to heavy equipment traffic. It is
used extensively through out mining, power generation, highways,
airfields, and on truck terminal loading docks and ramps. It is
suitable for large single span conditions or where grating must be
support extreme loads.
*All weights will increase by 5% when galvanized.
Fisholow aluminum gratings employ a unique interlocking system that
joins the bearing and cross bars together in panels of exceptional
rigidity and strength.
Lightweight, corrosion-resistant, non-sparking alloys are ideal for
pedestrian platforms in chemical, petroleum, hydro and food
processing plants, in sewage, water and waste water treatment
facilities. Also available in close mesh and serrated.
U= Safe Uniform Load, in lbs per sq ft or kPa
C= Safe Concentrated Load in lbs per foot of grating width or kN
per metre of grating width
D= Deflection in inches or mm
Metal Bar Grating is the workhorse of the industrial flooring
market and has served industry for decades.Strong and durable with
an exceptional strength-to-weight ratio, metal bar grating can be
easily fabricated to nearly any configuration.The high percentage
of open area makes bar grating practically maintenance-free and all
products are fully recyclable.
Manufactured by assembling a series of equally spaced metal bars to
connecting cross members, bar grating is available in three popular
materials; mild carbon steel, 6000 series aluminum, and 300 series
stainless steels. Additionally, Grating Pacific has the capacity to
produce gratings constructed with other specialty metal alloys.
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.
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|