Product Overview
Manufactured from alloy types 304, 304L, 316, and 316L, stainless steel gratings are ideal for sanitary or highly corrosive environments and architectural applications.
Available in three different methods of construction: type “WS” welded, type SLS” swage locked, and type “DTS” dovetail. Stainless steel gratings are produced with bearing bar spacings ranging from 19/16” (1-3/16”) to 7/16” on center with cross bars at 4” or 2” on center.
Finish options are diverse and should be carefully considered. For additional information, see Surface & Finish Options.
Types of Stainless Steel Bar Grating
Type “WS” Welded Stainless Steel Grating
Our strongest and most economical stainless product, type WS gratings are made by forge welding rectangular bearing bars and drawn cross bars. The welding process provides a positive fused intersection providing years of service under the most demanding conditions.
Type WS stainless gratings are available in 19 space (1-3/16”), 15 space (15/16”), and 11 space (11/16”) bearing bar centers. Standard cross bar spacing is 4” on center with optional 2” spacing available.
Type “SLS” Swage Locked Stainless Steel Grating
Hollow tube cross bars are hydraulically swaged into pre-punched holes in the bearing bars to make type SLS swage locked stainless grating. This type of construction provides a secure bearing bar/cross bar intersection and products are available with bearing bar spacings ranging from 19/16” (1-3/16”) to 7/16” on center.
The swaged cross bars sit slightly below the top surface of the grating making this product very popular for “close mesh”, ADA conforming applications. 11 space and 7 space are ideal for vault covers or entrance mats located in the public way.
Type “DTS” Dovetail Pressure Locked Stainless Steel Grating
Manufactured with deep rectangular cross bars, type DTS dovetail stainless grating is commonly preferred for architectural applications. Sunscreens, grilles, and infill panels are just some applications where this distinct egg-crate configuration is the ideal accent.
Type DTS gratings are available with bearing bar spacings ranging from 19/16” to 7/16” on center. For architectural applications where increased bearing bar spacing is desired please contact our sales department.
Stainless Steel Surface Options
Plain Surface
Standard surface with excellent self-cleaning characteristics. Suitable for most applications.
Serrated Surface
Notched bearing bars provide increased slip resistance. Ideal for applications where moisture or fluids may be present on or near the walking surface.
OnGrip™ Surface
Applied grit surface for increased traction and slip resistance. Popular for applications in the public way.
Stainless Steel Finish Options
Mill Finish
Mill finish stainless steel bars will show discoloration from welding, cutting, and grinding. Satisfactory for industrial applications where appearance is not a consideration.
Abrasive Blast
A uniform, matte finish achieved by abrasive blasting.
Commercial Clean
A uniform, matte finish is achieved by abrasive blasting followed by passivation to remove manufacturing contaminants.
Electro-Polished
A bright chrome-like appearance achieved by immersion in chemicals that clean and “polish” the base metal.
Bar Grating Fabrication and Engineering
We offer complete engineering services from concept to production. This includes design consultation, technical manuals, CAD drafting, engineering certification, and custom design services.
Once your plans are approved, our fully trained production staff will transform stock panels into the custom components your project calls for. Our services include full layouts, saw cutting, flame or plasma cutting, welding, punching, banding, and finishing.
We also fabricate stair treads, frames, and install lifting devices as needed.
All panels are piece marked to match installation drawings that ship with your order.
Steel Bar Grating Welding & Fastener Information
Welding will provide a superior, permanent installation. Mechanical fasteners, also known as grating clips, are great options when steel bar grating will need to be removed or welding is not practical.
The recommended minimum weld pattern shown indicates the minimum fastener spacing for pedestrian applications. Vehicular applications typically require additional welding, size, and spacing as to be determined by the specifying authority.
Saddle Clips
Bent clips bridging two bearing bars are available in galvanized steel, stainless steel, or aluminum. Standard bolt holes are 5/16″. Bolts, screws, or other connecting hardware shall be supplied by others.
Countersunk Lands
The narrow spacing of close mesh grating allows for countersinking or milling of the bearing bars to support bolt shoulders. Flat head screws or self-drilling fasteners shall be supplied by others.
Weld Lugs
Plates, punched with holes and welded between the bearing bars, facilitate bolting to the supporting structure. Bolts, screws, or other connecting hardware shall be supplied by others.
“G” Clips
Mechanical fasteners installed from the top surface of the grating create a friction connection with the flange supporting the panel. “G” clips are easily installed without drilling or welding.
Countersunk Lands
The narrow spacing of close mesh grating allows for countersinking or milling of the bearing bars to support bolt shoulders. Flat head screws or self-drilling fasteners shall be supplied by others.
“J” Clips
Narrow formed clip captures one bearing bar when spacing is limited, frequently 11/16″ on center. Cap screws and other fastening hardware shall be supplied by others.
