The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts. 8 Results. Our standard carbon steel panels are available in mill finish, hot dip galvanized or powder coat painted finish, while our stainless steel panels feature a mill finish. Wd. Stainless Steel Bar Grating, The Way You Need It. Metal Supermarkets offers a variety of shapes and grades of stainless steel, cut to the size,. 3820 page 1 of 1 series type & name bb hgt bb thk ped max lbs. Rp5. With the flexibility to create different spacings and utilize a variety of metals, press-locked bar gratings find their ideal application in. Grating allows light, heat, and air to pass through and is often used for industrial flooring such as mezzanines, ramps, platforms, and sidewalks. Optional close rivet spacing of 3-1/2″ on center is also available. Unlimited custom patterns, with or without side margins, manufactured per customer specification. 1. Raised Disc. 6: 4. Weldforged ® grating panels from IKG provide durable, strong,. 2” 35 mm. Heavy Duty Steel Bar Grating. Stock Number: NLTG3161-2424-G. C – Safe Concentrated Load in lbs. 4” 1 3/16” 50. Manufactured from ASTM A1011, ASTM A36, S275JR and SS400 carbon steel, welded gratings are recommended for nearly all industrial flooring application. If you are looking for an item not listed please complete our Fast Quote Form or call 800-472-8464. Huge selection of steel bar grating, stainless bar grating, and aluminum bar grating. comSTAINLESS STEEL BAR GRATING TABLE OF SPACINGS PART NO. S. Stainless Steel grating is the best bar grating. Stainless Steel. Delivered Anywhere! ™ How May We Help You? 1-859-745-2650. Call or email us for a quote today. Sharing design similarities with welded steel bar grating, it provides a cost-effective alternative while serving as an excellent walkway option. Note that the material for a bar grate is typically selected for corrosion resistance and weight. Our hot rolled and cold rolled steel is available in a wide range of shapes. Also Available in Stainless Steel NOTE: Spans and loads to the right of the heavy line exceed a defl ection of 1/4" for uniform loads of 100#/sq. We maintain some stock inventory of ornamental perforated metal. 237. Use this table when evaluating spans and loads for the following types of stainless steel grating: 15-WS-4, 15-DTS-4, 15-DTS-219SGSS4 Light Duty Stainless Steel Swaged Bar Grating is a pressure locked type grating made by the swaging process used for pedestrian traffic only and made per order. Hex metal refractory lining, or refractory furnace lining, is a hexagonal cellular mesh grating specifically designed for reinforcing both linings and flooring. com Office: (713) 688-8588Bar grating mezzanines are a great solution when you need extra space but don’t have more square footage in your facility. The most common bar grate material is steel, but stainless steel, aluminum, brass, and other materials are offered. For custom sizes and openings please contact Golden. Box 750518. Tolerance : Height 0. It. For applications demanding stainless steel footwalks, the stainless steel swagged grating, also known as swage locked bar crating, proves an excellent choice. Complete Fiberglass Grating Section of Our Product. 72''. Panels are manufactured to 2’ and 3’ widths, while providing standard lengths up to 24’ long. Manufactured from ASTM B221, 6063 or 6061 alloy, aluminum grating is available in four distinct product types. That’s why at Ohio Gratings Inc. , Kennesaw, GA 30152-4390. McNICHOLS ® Bar Grating, Standard-Duty Welded, Rectangular Bar, GW-125, 19-W-4 Spacing, Stainless Steel, Type 304L, Mill Finish, 1-1/4" Height x 3/16" Thick Rectangular Bearing Bars, Spaced 1-3/16" on Center with 1" Clear Space Between Bearing Bars, Serrated Surface, Bearing Bars Run Parallel to Length of Panel, Cross Bars. Crafted from stainless steel 304 or 316, it offers diverse sizing and designs. These stainless steel gratings are used as stairs, platforms, drain covers for different types of projects. Expanded Sheet. Choices in the McNICHOLS ® Grating lineup include bar-styles, formed planks, expanded types, and Gratings that are constructed via a molded or pultruded manufacturing process. we supply an extensive range of metals for various applications. 6934245135 McNICHOLS® offers Castable Bar Grating, Stainless Steel Type 304, Gridsteel® Smooth, Clinched Construction, 3/4" x . Please try our Heavy-Duty Bar Grating or RivDexteel® Bridge Deck. Marco Specialty Steel offers decorative perforated sheet metal ranging from 16 to 24 gauge. Steel bar grating has different fabrications, such as welded, swage-locked, press-locked and rivets connections. Our. Essential current technical data concerning heavy duty bar gratings of structural carbon steel and stainless steel. Stainless Steel Bar Grating provides a long-term durable grating solution for caustic atmospheres where corrosion resistance and aesthetic requirements. (ANSI/NAAMM MBG 532-19)bar grating gw & gw-2 series | 19-w-4 & 19-w-2 (1-3/16" on center) spacing | rectangular bar standard-duty welded carbon & galvanized steel load table sales@mcnichols. McNICHOLS ® Bar Grating brings safety, strength, durability, and character when installed in either industrial or architectural applications. Choose from our selection of steel bar grating, including over 150 products in a wide range of styles and. Available in welded, press-locked, and swaged. Buy Stainless Bar Grating Online at MetalsDepot . Our staff of metal experts is ready to assist you. Steel bar grating can be made of different materials including carbon steel, aluminum steel and stainless steel. We stock and fabricate to meet your needs at our 19 locations. Email: sales@siskgratings. Harga Grating Stainless Steel 304 size 1mx 3m. Stainless Steel and Aluminum Bar Grating Manual and MBG-532 Heavy Duty Metal Bar. The cross rods can be attached to the bearing bars in a variety of ways, including welded, welded with filler bars, press-locked, swaged, flush top, and I-bar. Engineers and designers work to develop metal grating solutions that exactly fit the parameters of a structure. It supports the same loads as welded grating, except it’s formed with enormous hydraulic pressure. Stainless steel bar grating provides a superior corrosion and oxidation resistant material that is stronger than aluminum. 3820 [email protected] which is applicable for welding, both sides are edged with flat bars of which the height is same with the bearing flat bars and the thickness is 5mm. Expanded Sheet. Stainless steel stair treads are available fabricated to any size in type “WS” welded, type “DTS” dovetail pressure locked, or type “SLS” swage locked grating. Diamond pattern(s): From 1/4”-#20 up to 7. Secure grating to your support structure. 6061. 0mm and 4. Flat Bar. Open area of approximately 35% allow fluids, ice, and mud to easily flow through the grating. Stainless Steel, Type 304, 1/8" Thick (. Type 19-WS-4 with Checkered. Wire Rod for Grating Crossbars: ASTM A 510 (A510M). (mm) in. Welded steel grating is joined at the intersection of the bearing bars and cross bars. 8401 W. 10. Along with the material grade, another major consideration when choosing the appropriate bar grating for your application is the construction method. Specify banding and any additional trim required. Pattern-wise, the materials come in a normal, interrupted, carrier bar, or carrier bar with crossbar shapes. Using thermal metal spray technology, OnGrip® metal-grip surfaces bond with carbon steel, stainless steel or aluminum surfaces for enhanced traction. They are available in carbon steel, aluminum or stainless steel. Nosing is textured for traction. Bldg. 60MI601099 McNICHOLS® stocks Grating Fastener, Stainless Steel/Type 316, Each, Type MI-6010/15 Saddle Clip With Hardware. 3mm. Bar Grating. Panels are manufactured to 2’ and 3’ widths, while providing standard lengths up to 24’ long. Electro-Polished. One-piece plank construction is also available. Marco stocks a huge variety of expanded metal sheets. Each of our nine service centers stocks an extensive inventory offering Same Day. No-Ledge™ Galvanized Driveway Drain Grate, Stock Size - 1" x 24" x 24". Brown-Campbell Company. Metal Supermarkets Wichita is owned and operated by ICT Metal LLC. Serrated. Largest selection of fabricated, ready to ship trench and drain grating sizes at wholesale prices. Stainless Steel Bar Grating Products. Commercial customers may request credit terms. LOAD TABLE FOR STAINLESS STEEL GRATING - TYPE W-19 OR P-19 ALLOYS 304, 316 & 304L, 316L F=138MPa, E=139,000MPa Recommended max. conditions make it an economical selection over the. Gratings are available in Standard series for pedestrian loads or Heavy Duty series for vehicular traffic. Need it cut to size, welded, or a certain finish?15W2 Heavy Duty Welded Steel Bar Grating is primarily used for areas with traffic of H-10, H-20, automobiles, and forklift traffic. Need Project Assistance? 1-859-745-7708. It allows for the maximum passage of heat, light or air, based on spacing design. Grating Patterns: Press-lock type, pass-through type. Step 1: Material And Construction: The first step is to select the appropriate material for the gratings. McNICHOLS ® Standard-Duty Welded Bar Grating Stair Treads consist of rectangular-shaped bearing bars (smooth or serrated), Carrier Plates and Nosing. 2. Mon - Fri: 7:30 am -. Diamond Tread. Stainless Steel Bar Grating. Shot blasting or wire brushing should be avoided since. Standard: Serrated:Marco Specialty Steel: An Experienced Metal Fabricator You Can Trust. com. A deeper product will generally provide more strength. Welded bar grating is the most common type of bar grating. Stocking over 50,000 Shapes, Sizes, Types and Lengths of Steel, Aluminum, Stainless, Brass, Copper, Cold Finish Steel, Tool Steel and Alloy Steels among our network of warehouses, at Wholesale Prices. Available for 15/16″, 1-3/16″ and 1-3/8″ bearing bar spacings (15, 19 and 22 space) in carbon and stainless steel. 90 205 515 193,000Industrial Bar Grating is dipped in black primer for temporary protection and not for cosmetic applicatons as is. Metals. Diamond Grip. McNICHOLS® Expanded Metal Grating provides reliable solutions for load-bearing applications. The Algrip laser deposition surface may be applied to the walking surface of nearly all gratings found in the Metal Bar. Thats The Hole Story ®! 800. Serrated Bars: For serrated grating, the depth 0t grating required for a specified load is 1/4" deeper than that shown in the table. 15W4 Heavy Duty Grating is available in bearing bar sizes ranging from 1” to 6” depths and thicknesses of 1/4", 5/16”, and 3/8”. Swivel locks are easy to install, adjust, and remove— tighten the bolt and the fastener swivels into place. Hexagon Bar. Bearing Bar Height. 10 ft. Stainless Steel Bar Grating. Bar Grating Specific Considerations. Available in flattened or standard. Marco Specialty Steel, located in Houston Texas, has been providing fast, cost-effective custom metal fabrication solutions since 1992. Whether you need tube, bar stock, sheet, plate or structural metals, Metal Supermarkets Seattle (Kent) has you covered. BROWSE CATALOG. is available in welded and press locked as well as in many bearing bar sizes: Stainless steel bar grating is mainly. 125 Inch Channel Depth (CS)Architectural bar grating is a strong choice for projects ranging from: Architectural bar grating can be used for many applications including sunshades, railing infill panels, water fountain features, and pedestrian areas. Size (s): 48" x 120". Available Anchoring and Fastener Solutions for Bar Grating: Saddle Clip: Special bent-clip type bar grating fastener for removable bar grating panels; Available in aluminum, stainless steel, and galvanized steel; Clips are supplied by request and don’t come automatically with grating orderStainless steel 316/304 gratings with pressed clamp, Plates, bolt and nut. StainlessDrains. 237. com | 800. Expanded Metal Grating is manufactured by slitting and stretching a single sheet of metal to maximize use of the raw material while producing a strong, rigid, and open sheet. Cross Rods 4in. Complete Bar Grating Section of our Product Catalog Metal Grating Catalog . Shop Stainless Steel Bar Grating at Brown-Campbell. In-Stock catwalk included in Grating-Carbon Steel. This bar grating has a surface that's flat, smooth, easy to clean, and install. 25 in Overall Ht, 24 in x 6 ft Nominal Size (WxL)Flat-Rolled and Wrought Stainless Steel. This bar grating has a serrated surface that improves traction and helps reduce skids and slips as compared to smooth bar grating. 496. Metal grating is a metal product produced by perforating metal sheets or joining bars of metal to form a grid. Carbon steel grating is the most economical type with galvanized and painted surface treatment. RailROAD Grating Tru-Weld Steel Railroad Grating is special wide mesh Type 26-4 (Type 41-102 Metric) with bearing bars supplied serrated for additional safety. Our hot rolled and cold rolled steel is available in a wide range of shapes including: bars, rods, universal beams, universal columns, pipes, hollow sections, channels, sheets and plates. 3mm. Available in steel, aluminum, or stainless steel, treads are fabricated with a standard 1-1/4″ wide, visibly defined, slip-resistant nosing. Robust and versatile, light-duty steel grating is used for a variety of applications. Stainless Bar Grating. Detailing. Lg. Manufactured from ASTM A1011, ASTM A36, S275JR and SS400 carbon steel, welded gratings are recommended for nearly all industrial flooring application. 5052. Typical uses include catwalks, platforms, stairways, entranceways, and trench grating. 15W4 is. bearing bar) of the Bar Grating item. Alro's. A. Bar Grating material types include Aluminum, Carbon Steel, Powder Coated Carbon Steel, Galvanized Steel and Stainless Steel. Alro's processing. Any flooring application that would require exceptional drainage, additional light, or remarkable air flow can still achieve the noteworthy performance of SLIPNOT’s unique traction maximizing. Grit. The most common materials used are stainless steel and aluminum. Finishes include commercial quality (unpainted) and galvanised. Each style offers unique advantages. 14# Carbon and 3. Carbon steel bar grating is available in the following profiles: • Plain surface, standard mesh is the most versatile and popular • Serrated surface, for areas requiring more slip-resistance Both profiles are available in bare steel, shop primed (painted), or. Stainless steel treads have better corrosion resistance than steel or aluminum. Largest selection of fabricated, ready to ship trench and drain grating sizes at wholesale prices. COMPARE. Bar Grating. Stainless Steel. We also supply a. Wide range of materials available: carbon steel, aluminum. Also called plain steel grating, it provides good chemical stability for long periods of time. STAINLESS-BAR-GRATING-SPACINGS. For nearly a century, metal bar grating has been the predominant choice for open metal flooring. Metal Bar Grating Stair Treads. is a leading fabricator of grating, light duty grating, heavy duty grating, aluminum grating, and fiberglass grating. 4 HEAVY DUTY METAL BAR GRATING ANSI/NAAMM MBG 532-19. Direct Metals ® offers saddle clips, anchor blocks, plank clips, countersunk lands, grating clamps, Z clips, and plank lugs for bar grating projects. 35 and 40mm are recommended. Our state-of-the-art 35,000-square-foot. foot warehouse for instant access to thousands of metal types, shapes, grades and thicknesses, including a wide variety of hot rolled shapes and sheets as well as cold rolled sheet and bar, aluminum. Expanded metal grating is made by creating slits in a metal sheet and then stretching (expanding) the sheet, resulting in a diamond pattern. They all have high strength and firm structure to be used in heavy duty applications. Contact Us: (800) 491-7999. 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. Specifications (PDF) Get Quote. Material Finish: Mill Finish, Pickled Finish, Electro-polished etc. Product Details Feedback. PER SQ. For technical drawings and 3-D models, click on. The grating is available in Plain or Serrated surfaces, with cross bar spacing at 2" or 4" on center and bearing bar spacing ranging from 19/16" to 7/16" on center. Product photo Brief note. Stainless steel is preferred for corrosion resistance. Each of our nine service centers stocks an extensive inventory offering Same Day. Hexagon Bar. Welded steel grating has anti-slip surface, corrosion resistance, good drainage function, high strength and load capacity. Shop Bar Grating online at Brown-Campbell. It can be fully welded to ensure a solid framing for the expanded metal. Hot Rolled. 00. 6061; 6063. 5 in. Rp9. 50# Grating (Standard/Raised), 58% Open Area. 4mmStainless Steel Grating. Type “G” stainless steel hold clips designed to attach grating to any structural member flange, 3/4″ or smaller in. Hot Rolled. The provisions cover banding, toe plates, treads, and miscellaneous material. Stainless Steel Hygienic & Sustainable with a Modern Appearance Stainless Steel has unique corrosion-resisting properties that prevent rust and surface stains. Bar Grating terminology and formulas help with load calculations for Brown-Campbell grating products. SPACING OPEN AREA* 19-WS-4 19-SLS-4 19-DTS-4 78% Bearing bars spaced at 1-3/16" on center and cross bars at 4" on center. Available with smooth or serrated edges in plain, painted, galvanized or vinyl coated. , we offer carbon and stainless steel bar grating for your light-duty or heavy-duty application. Stainless steel trench grating is rugged, long-lasting, and designed to withstand severely corrosive and high-moisture environments. Easy to fabricate. AMICO provides grating and fabricated assemblies worldwide. Download PDF. Q2: In the regular-duty and Aluminum grating calculators, why do I not see vehicular loads? A2: These types of grating are not recommended for vehicular loads. 3/16 x 1-1/2" - 19SW4 SMOOTH - 3Ft Wide. Select Size 12. is an independent franchised operator of the Metal Supermarkets store located at 500 Milwaukee Way, Knoxville, TN, 37932. 000. The concentrated midspan and uniform load bearing capabilities of W-19-4 (1-1/2 x 3/16) welded A1011 CS Type B carbon steel grating and the corresponding midspan deflections will be calculated. Our central Houston, Texas, location is your headquarters for specialty steel products of superior quality and reliability. Slip-resistant surfaces. 2194. Hot Rolled. 6mm. Stainless Bar Grating. Workability: Easy to Weld, Cut, Form and Machine. McNICHOLS® Bar Grating, Standard-Duty Welded, Rectangular Bar, GW-100-A, 19-W-4 Spacing, Stainless Steel, Type 304, Mill Finish, 1" Height x 1/8" Thick Rectangular Bearing Bars, Spaced 1-3/16" on Center with 1-1/16" Clear Space Between Bearing Bars, Smooth Surface, Bearing Bars Run Parallel to Length of Panel, Cross Bars Spaced 4" on Center. As a full-service grating supplier, our sales, project management, engineering and drafting departments can. Available in bar thicknesses of 1" x 3/16" and 1" x 1/8". Select a Size. Welded. Product Spacing (e. Bar Grating. The perforated buttons provide a walking surface that is slip resistant in all directions. As a result, Clinched Grating facilitates the prevention of corrosion and. Widely applied in chemical plants, food processing, and oil/gas industries, its corrosion resistance and. Different material. Open. Available in both smooth and serrated surfaces. 3 FASTENERS . C, Suite 312 Glen Ellyn, Illinois 60137 Phone: (630) 942-6591Grating is used broadly across many rugged industrial and commercial applications. com (888)499-8494 PRODUCT . This bar grating type is. Fits FRP Grating Type: Moulded & Pultruded. The 7/16" on center. This is a common grating type used in treatment plants and vessels that house corrosive materials. span for 6. Listening to your feedback and understanding the importance of. Cold Rolled 1018;. Aluminum. Purchase it online or at any Metal Supermarkets location, cut to your exact specifications. Front protection plate is 3mm. Qty: View Details Add To Cart. 304 or 316 grade for choice. Any Quantity, Any Size, Delivered Anywhere! The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts. 8: 5. There are three main requirements for a Grating, Decking, or Flooring surface to meet ADA standards for accessible design. Metal Grip Strut™ Ladder Rung 1-Diamond (2. Perf-O Grip is a one-piece metal plank grating manufactured from a single sheet with formed side channels. Please inquire. Catalog Library. Carbon steel bar grating is an ideal option when your project requires a strong material that will not be exposed to an expressly corrosive environment. 5mm thicknesses. McNICHOLS CO. Welded bar grating is the most popular of all grating types due to its strength, cost-efficient production and ease of installation. If you do not find the catalog or information you desire, please contact Grating Pacific and we will promptly provide the appropriate information. It is a lightweight, economical alternative for short span catwalks and maintenance platforms. 19W2. Select the primary material type including Aluminum, Carbon Steel, Galvanized Steel, or Stainless Steel. ADA requirements), bar depths and finishes Stainless Steel Grating. Products Offered in 310 stainless steel: Wire Cloth. Grating, Stainless Steel, Type 304, 4. You can also choose from a wide variety of attractive finishes to achieve the ideal look for your work environment including Galvanized Steel, Bare Steel and Mill Finished Caustic Cleaned. Also available in aluminum and stainless steel. 4. Available in carbon steel, aluminum, and. Typical applications include use in areas exposed to water, oil, or where slips are likely to occur. Vulcraft offers a wide variety of steel bar grating including standard, heavy duty and customized shapes and sizes with various finishes making our products suitable for all. Able to support heavier loads than plank grating, bar grating is good for trenches, mezzanines, walkways, work platforms, and floors. Available in. Choose these stair treads for greater durability than metal plank grating stair treads. Each sheet that comes off the expander is in standard or regular form with the junctions at the strands and bonds forming a ridge surface. The sheet can then be cut to size and flattened. Compound metal grating is available in a variety of sizes and material types. “W” for welded steel grating. Expanded Metal. Offering a wide variety of bar grating types and constructions including: carbon steel grating, aluminum grating, stainless steel grating, bar. Bar Grating Standard-Duty Welded McNICHOLS® Bar Grating Standard-Duty Welded, Rectangular Bar, GW-100, 19-W-4 Spacing, Stainless Steel, Type 304L, 1" x 3/16". Other. STAINLESS STEEL BAR GRATING MetalsDepot STAINLESS WELDED 19-s-4 Call Us! 1-859-745-2650 Shop Online! C/C Bearing Bars. The lower component connects to the underside of the structural beam, holding the grating firmly in place. Bar Size Nominal Weight (psf)** Recommended Max. Our most common bar grating is manufactured in either carbon steel or stainless steel at IKG’s state-of-the-art manufacturing centers on specialized automatic. Stainless steel grating is considered industrial-grade bar grating, primarily used for pedestrian & light vehicle traffic. , we offer carbon and stainless steel bar grating for your light-duty or heavy-duty application. Stainless steel press-locked bar grating is rugged, long-lasting, and designed to withstand severely corrosive and high-moisture environments. General: Unless otherwise indicated, provide Type 316 stainless-steel fasteners for exterior use or zinc-plated fasteners with coating complying with ASTM B 633, Class Fe/Zn 5, at exterior walls. Flat Bar. They are available in different material grades and are strong, durable, and resist. During construction, these rigid (1/4″ minimum thickness) frames expedite forming and help assure an accurate concrete pour. Our range of Safegrid open grid flooring is available in plain. 36". Metal Supermarkets Knoxville is owned and operated by Integrity Associates Inc. Typical. Unlimited custom patterns, with or without side margins, manufactured per customer specification. (Fasteners available in Self tapping, or Bolts with nuts and washers included). Stainless and Aluminum expanded metal also. 950. Allowable stress, F = 18,000 psi Industrial Bar Grating is dipped in black primer for temporary protection and not for cosmetic applicatons as is. This material is available in flat top and serrated options, as well as banded and un-banded ends upon request. Benefits of safety grating include: Lightweight material. Direct Metals ® offers plain or serrated bar grating surfaces in galvanized, bare steel, or painted finishes. Sherman Street. T4 which is applicable for bolting, both sides are edged with 65×5 flat bars and are punched. Hygienic, non. Afterward, cross bar selection takes. The process of expanding is very economical as it. Houston, TX-based Marco Specialty Steel is your one-stop headquarters for superior bar grating products, as well as complete customization services. 7 lb/sq ft. 1 Sungei Kadut Crescent Singapore 728684 +65 6747 0200 +65 6747 9877; sales@bedecsteelgrate. Available in distinct hexagonal or diamond patterns, standard products are. Cuts up to 1. Style: Ht. A bright chrome-like appearance achieved by immersion in chemicals that clean and “polish” the base metal. Attach grating to steel members with horizontal edges in selected corrosive environments. 6 mm. McNICHOLS® carries Standard-Duty Welded Bar Grating, Galvanized Steel, Hot Dipped, GW 125A Smooth, Welded Construction, 1-1/4" x 1/8" Bearing Bars, 1-3/16" on Center, Regular Cross. org. Marco Specialty Steel offers stainless steel bar grating products manufactured from alloy types 304, 304L, T304, 316, or 316L. Please give us a call at 1-800-711-4939 or email us at info. Note：. conditions make it an economical selection over the. Commercial Quality. Welded Bar Grating Catwalk. Wide range of materials available: carbon steel, aluminum. Hexagon Bar. Cus-Type of grating – welded, pressure-locked, swage-locked, riveted. Stainless Steel grating has the same basic properties as listed under light and heavy duty grating, but with the added benefits of corrosion resistance and durability. 19-W-4) refers to the industry specification for Bar Grating products. The following design calculations were used to. Unlike cast iron or molded trench products, this flexible system allows the. ft. per foot of grating width. To specify welded steel grating, first specify the TYPE of grating from the table below. Search Feedback. It is available in primarily 304, but also 316 grades of. Other steel suppliers can trust McNICHOLS to be an extension of their inventories, especially when it comes to the more unique product lines and specifications. 00. The outline of these holes is raised and serrated for increased traction. 15W2. per sq. With approximately 35% open area, fluids and ice easily pass through the grating. Marco Specialty Steel offers stainless steel bar grating products manufactured from alloy types 304, 304L, T304, 316, or 316L. Stainless steel grating is regarded as industrial grade bar grating, which is extremely strong, durable and corrosive resistant for all load bearing applications and is primarily used for pedestrian and light vehicle traffic. For technical drawings and 3-D.