It is often used for applications that require light, air, heat, and sound to pass through the grating. 5 Light Duty Riveted Steel Bar Gratings; 18-R-7 Light Duty Riveted. Slip-resistant surfaces. Material - MS , 316 and Fiber glass. Specify plain or serrated surface. Standard: Serrated:McNICHOLS® carries Standard-Duty Welded Bar Grating, Carbon Steel, Hot Rolled, GW 150 Serrated, Welded Construction, 1-1/2" x 3/16" Bearing Bars, 1-3/16" on Center, Regular Cross Bars 4" on Center, 19W4 Spacing. 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. 5 in. 6061; 6063. We have No Minimum Orders, We Cut to Size. Beam. Our Heavy Duty steel bar grating is resistance-welded using an automated electric hydraulic welding process, which uses high temperatures and high pressure to fuse the bearing bars and cross bars together to form a strong, permanent joint. com | 800. Beam. Since that time, our goal has been to provide the best, most customer-focused services, regardless of the project’s size or scope. Stainless steel is great in corrosive environments and environments that need to keep clean such as. Carbon Steel Heavy Duty Bar Grating is usually provided with bare steel (no finish), painted with one coat of IG EcoCoat™, or hot dip galvanized in accordance with ASTM A-123. Robust and versatile, light-duty steel grating is used for a variety of applications. Metal bar grating for bridge decking has some very specific advantages. 6402180132, 6402180134. Available in flattened or standard. Type 19-W-4 Type 19-W-2 Type 15-W-4 Type 15-W-2; 3/4 x 1/8: 4: 4. 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. 125" and L/400) Riveted Heavy Duty Gratings. Cold Rolled 1018;. (209) 832-6363. Secure grating to your support structure. Nucor Steel Grating. or austenitic stainless steel. Our Load Bar material comes in 25, 32, 40, 45, 50, 65, 75 and 100mm height. The most common types are iron, carbon steel, aluminum, and stainless. For technical drawings and 3-D models, click on. With a large percentage of open area, bar grating requires little. SS316 gratings - 30 × 60. Our inventory includes: stainless steel, structural steel, mild steel, galvanized steel, aluminium, brass, bronze and copper. 125" x 36". Material - MS ,. Bar Grating. This includes over 80 types, shapes and. There are three main requirements for a Grating, Decking, or Flooring surface to meet ADA standards for accessible design. Choose from our selection of stainless steel grating in a wide. 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. Aluminum products are commonly supplied as mill finished, but are also. Bearing Bar Height. 19W2. Choose from our selection of stainless steel grating in a wide range of styles and sizes. MBG 533 - Welding Specification for Fabrication of Steel, Aluminum and Stainless Steel Bar Grating. Uniform load U=100psf. Stainless Steel Grating. com Office: (713) 688-8588 Bar grating mezzanines are a great solution when you need extra space but don’t have more square footage in your facility. Standard Size: 10’ SWD x 2’, 2’-6”, 3’ LWD or Marco can cut to your size specifications with our fast and accurate fabrication. Carbon steel, galvanized steel, aluminum, and austenitic stainless steel are all common material types that are used to make safety grating. Stainless Steel, Type 304, 1/8" Thick (. (mm) in. Bar grating is a series of bearing bars joined to perpendicular cross bars at various intervals to form a load-bearing panel. Gratings. Standard dimensions are 1/4" x 1-1/2" flat bars on 1” centers welded to a solid frame. A. Harga Clamp Grating C/W BOLT AND NUT SS304 stainless steel KLEM. Through hard work, determination and humble beginnings, Ohio Gratings. Carbon Steel. Sheet sizes: 4’x 8’, 4’ x 10’, 5’ x 10’ and 6’ x 10’. High percentage of open area. Grating Pacific allows the specifier to combine any of our Standard Duty pedestrian grates or Heavy Duty vehicular gratings with any of our popular Embed Frames. 00. (713) 649-5310 (713) 649-5310. Swage-Locked Stainless Steel Bar. Shot blasting or wire brushing should be avoided since. For Drainage Opening . Tolleson, AZ 85353. The most common bar grate material is steel, but stainless steel, aluminum, brass, and other materials are offered. 14# Carbon and 3. Length. We maintain some stock inventory of ornamental perforated metal. 3# Stainless GratingAdvantages of Grip Strut™ Safety Grating: Open diamond pattern allows for the drainage of fluids, mud, chips, and other accident-causing debris through floor grating and stair treads. Essentially maintenance-free. In June 1970, David Bartley Sr. Bar Grating. Look to Ryerson for stainless steel bar in flat, half round, hexagon, round and square forms. Need Project Assistance? 1-859-745-7708. Stainless steel is a ferrous, steel alloy with increased corrosion resistance compared to carbon/alloy steel. Detailing. After deciding which structure to use, the materials are select. We stock thousands of bar grating panels and are available 24/7 to serve your rush needs. Pattern-wise, the materials come in a normal, interrupted, carrier bar, or carrier bar with crossbar shapes. Grating width 300mm. Stainless expanded metal grating; Carbon steel expanded metal grating; Galvanized expanded metal grating; Aluminum expanded metal grating . Popular for highly corrosive environments and long-lasting architectural applications, stainless steel bar. Hallweld Gratings has a range of grating patterns available in stainless steel. Bar grating is one of the most used metals for these walkways. Surface : self colour. 1. 1. Bar grating is a group of parallel metal bars joined with perpendicular metal bars to form a grate. Bar grating is ideal for industrial steel grating flooring and metal grates. For Support. The outline of these holes is raised and serrated for increased traction. It is solid, long-lasting, and corrosive resistant for all load-bearing applications. Call or email us for a quote today. Characteristics. 19SGSS4 Light Duty Stainless Steel Swaged Bar Grating is available in bearing. Shop Bar Grating online at Brown-Campbell. Grating Length 1400 Linear meters. The principal part is the body assembly, which has a female thread form in its upper portion. 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, Smooth Surface, Bearing Bars Run Parallel to Length of Panel, Cross Bars Spaced 4". SSPC: The Society for Protective Coatings (formerly Structural Steel Painting Council): SSPC Painting Manual. Welded Bar Grating is available with the standard plain or optional serrated surface. Simply click on the link below to begin your download. 5:. Commercial Quality. Load Table; Panel Width Chart; Span Table; Download / Print High Resolution PDF. That’s where we come in, call us to inquire about our offerings. U – Safe Uniform Load, in lbs. It is available with bearing bar spacing ranging from 19/16″ (1-3/16″) to 7/16″ on center and with cross bars at either 4″ or 2″ on center. Download Credit Application Form. McNICHOLS® carries Standard-Duty Welded Bar Grating, Carbon Steel, Hot Rolled - Powder Coated Gray, GW 100A Smooth, Welded Construction, 1" x 1/8" Bearing Bars, 1-3/16" on Center, Regular Cross Bars 4" on Center, 19W4 Spacing. Our industrial grating products are built with worker and maintenance personnel safety in mind. 3/16 x 1-1/2" - 19SW4 SMOOTH - 3Ft Wide. This is a simple welded stainless steel grating made of 3/8” square stock. Just tell us the type of metal, shape and grade. 25” max. Type “G” stainless steel hold clips designed to attach grating to any structural member flange, 3/4″ or smaller in. Clips can be used to attach grating or plate to the supporting structure or fasten adjacent grating panels to minimize load induced differential deflection. 10. We also supply a. Choose from our selection of metal bar grating, narrow. Steel Bar Grating. Grating Manufacturers in UAE Get in touch with us Grating Manufacturers & Suppliers in UAE At Emerald, we Provide Grating Products like Galvanized Steel, Stainless Steel, Bar Type Grating, Wire Grating, Grating plates, M. Our U-Edging is easy to install and available in custom lengths. widths from 4-3/4″ to 24″ and 10′ and 12′ lengths. Recognizable by 1st size dimension larger than 2nd size dimension. 6602310232, 6602310234. Bar Grating material types include Aluminum, Carbon Steel, Powder Coated Carbon Steel, Galvanized Steel and Stainless Steel. The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts. 0mm and 4. Stainless Steel. Standard Aluminium Grating Panel. Buy bar grating Trench Grates and Drain Covers online at America's Metal Superstore. It allows for the maximum passage of heat, light or air, based on spacing design. 4. Stainless steel grating is considered industrial-grade bar grating, primarily used for pedestrian & light vehicle traffic. Center-to-Center Wd. Treads are manufactured with a defined visible nosing and pre-punched end carrier plates or angles, ready for bolting to the stair stringers. Type M Hold Down Clamps: 316 stainless steel clips used to secure panels to support using two adjacent grating bars for a secure fit. 12" 24" 36" 46" 48" 58" 60" 70" 72" 96" 120" 144" Made to Order. With approximately 35% open area, fluids and ice easily pass through the grating. Galvanized Steel . Other. We carry a multitude of metal types including hot-rolled steel, cold-rolled steel, tool steel. The grating is resting between stone pavers and handicap pavers on a cast in place trench. Commercial Quality. Span (in. 1398 Mariani Court, # 120. BROWSE CATALOG. Bearing bar grating, also know as welded steel bar grating, the most strong and durable metal grating products. In 19 warehouses across the United States, McNICHOLS has a wide selection of Specialty Metals and Grating Products, all ready to ship directly to you or your customers. Stainless steel is preferred for corrosion resistance. Economical. McNICHOLS® offers Standard-Duty Welded Bar Grating, Galvanized Steel, Hot Dipped, GW 150A Non-Serrated, Welded Construction, 1-1/2" x 1/8" Bearing Bars, 1-3/16" on Center, Regular Cross Bars 4" on Center, 19W4 Spacing. 25in. From hot. ADA Grating. Heavy Duty Floor Drain Grates. This bar grating has a serrated surface that improves traction and helps reduce skids and slips as compared to smooth bar grating. SAFEGRID. Finish options are diverse and should be carefully considered. Need help? Call (800) 321-4314. Surface. Download PDF. As part of our ongoing commitment to provide comprehensive solutions for our valued Industrial accounts, AMICO is now offering Bar Grating – Made in the USA. stainless steel, hot-rolled steel, cold-rolled steel and more. these operations can cause iron contamination which, if not removed, will cause rusting and discoloration of. 2” 35 mm. They are available in carbon steel, aluminum or stainless steel. Depth options are based on your configuration for 11W4 Stainless Steel Smooth Light-Duty Bar Grating . Suitable for most applications. Simply click on the link below to begin your download. Commercial Quality. Product Options. Stainless Steel Bar Grating is manufactured from alloy types 304, 304L, 316 and 316L and available in grating types “WS” (welded stainless grating), “DTS” (dovetail stainless pressure locked) and “SLS” (swage locked stainless). Steel. We stock stainless steel bar grating in both smooth and serrated surfaces. O. Certain types of bar. Metal Supermarkets Wichita is owned and operated by ICT Metal LLC. America's first and leading steel grating manufacturer. If you are looking for an item not listed please complete our Fast Quote Form or call 800-472-8464. 1-1/2'' - #6. The following catalogs are available in downloadable PDF format for your use and future reference. McNICHOLS® Expanded Metal Grating provides reliable solutions for load-bearing applications. Standard: Serrated:Marco Specialty Steel: An Experienced Metal Fabricator You Can Trust. Alro Steel - Milwaukee, Wisconsin, offers stainless steel, tool steel, carbon steel, alloys, aluminum, brass, bronze, copper, cast iron, and much more. (mm). Search Feedback. 5". com McNICHOLS® Bar GratingHeavy-Duty Welded, Rectangular Bar, GHB-150, 19-W-4 Spacing, Carbon Steel, Hot Rolled, 1-1/2" x 1/4" Rectangular Bar, Smooth Surface, 73% Open Area. With a variety of grades, including 15-5, 17-4, 303, 304, 316, 410 and 416, our stock lengths can be customized for your applications by sawing, punching, drilling, milling, welding, and bending. Standard Expanded Metal is a finished product as it comes from the press after having been die cut and expanded. All products are available with bearing bar spacing ranging from 19/16” (1-3/16”) to 7/16” on center and. The most common materials used are stainless steel and aluminum. McNICHOLS® offers Standard-Duty Bar Grating, Welded, Stair Tread, GW-125, 19-W-4 Spacing, Carbon Steel, Hot Rolled, Mill Finish, 1-1/4" Height x 3/16" Bearing Bars, 1-3/16" on Center, Serrated, Bearing Bars Parallel to Length, Cross Bars 4" on Center, Checkered Plate. 3/4" 1" 1 1/4" 1 1/2" 1 3/4" 2" Any. Alro Steel offers a variety of stainless steel shapes and sizing, including bars, plates, sheets,. These include 30mm, 40mm and 60mm Load Bar pitch and 50mm and. Stainless sleet surface options with excellent self-cleaning characteristics. Stainless Steel. Panels are manufactured to 2’ and 3’ widths, while providing standard lengths up to 24’ long. Swaging mechanically locks cross bars at right angles to bearing bars for clean, uniform panels that meet tight tolerances. and 100mm are recommended. Woven Wire Mesh; Welded Wire Mesh; Market Grade; Space Cloth; Refinery Grade; Galvanized Hardware Cloth;. 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. McNICHOLS® Bar Grating, Standard-Duty Welded, Rectangular Bar, GW-150, 19-W-4 Spacing, Stainless Steel, Type 304L, Mill Finish, 1-1/2" Height x 3/16" Thick Rectangular Bearing Bars, Spaced 1-3/16" on Center with 1" Clear Space Between Bearing Bars, Smooth Surface, Bearing Bars Run Parallel to Length of Panel, Cross Bars Spaced 4". Stainless Steel Bar Grating Products. 5mm, thickness 0. In stock and ready to ship. table of spacings DOWNLOAD PDF - 1 PAGE. capabilities of stainless steel under these special. Our expanded products are available in standard, flattened, heavy-duty grating, and catwalk grating, and they are ready for immediate shipment. Expanded metal grating is made by creating slits in a metal sheet and then stretching (expanding) the sheet, resulting in a diamond pattern. Product photo Brief note. Emerald General Trading offer manufacturing services for grating products Steel grating, GRP. Chicago Location: 3380 Grand Avenue, Waukegan, IL 60085. 1. 120'', 144''. Choose from our selection of metal bar grating, fiberglass bar grating,. we supply an extensive range of metals for various applications. Stainless Steel Bar Grating is a kind of stainless steel open grid structure processed with the bearing bar & cross bar jointing at intersections either by welding, press locking or. We stock stainless steel bar grating in both smooth and serrated surfaces. 1 Sungei Kadut Crescent Singapore 728684 +65 6747 0200 +65 6747 9877; sales@bedecsteelgrate. Along with the material grade, another major consideration when choosing the appropriate bar grating for your application is the construction method. Complete inventories of common hole sizes and spacings available for immediate shipment. Hexagon Bar. Call: (800) 321-4314. Vietnam Industrial Material Supply Joint Stock Company (VIMS. BROWSE CATALOG. H-3 Saddle Anchor; Tek Screws; G-Clip;Riveted gratings are available in carbon steel, 6000 series aluminum and 300 series stainless steels. Channel. As the most frequently used material in the metal bar grating industry, carbon steel can withstand significant force without warping, buckling or bending. 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. There are many materials to choose from, like aluminum,. Aluminum is a good light weight material if that is a concern. Non-slip stainless steel grating and treads for raised platform at SugarCreek Packing Plant. Add to Cart. 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. 237. 8 mm. Bar grating stair treads from Direct Metals ® are ideal for many different applications. For Cut-To-Size or if you are looking for an item not listed, please fill out our Fast Quote Form or call 800-472-8464. Vietnam, USA, and European countries. (Fasteners available in Self tapping, or Bolts with nuts and washers included). Various meshes in 24″ and 36″ widths and 20′ and 24′ lengths. Welded stainless steel grating can. Each of our nine service centers stocks an extensive inventory offering Same Day. PVF. 8401 W. 7 lb/sq ft. Alro's. Direct Metals ® stock stainless steel bar grating T304 stainless steel, is an industrial grade used for many applications. Marco stocks a huge variety of expanded metal sheets. Stainless steel is preferred for corrosion resistance. Common uses for gratings range from walkways, ventilation, trench covers, electrical ground mats and architectural applications such as louvers and security fencing. Hygienic, non. Call us for a quote today. Stainless steel press-locked bar grating is rugged, long-lasting, and designed to withstand severely corrosive and high-moisture environments. Specified widths deviating from this table will be fabricated to size with side banding and the bar spacing on one side of the finished panel will deviate from the spacing throughout the remainder of the panel. Stainless Steel grating is the best bar grating option for severely corrosive environments. 000. Mon - Fri: 7:30 am -. We also supply a hexagonally. Diamond Tread. Bearing bar spacing, center-to-center – 19-W-4 = 19/16” or 1-3/16” on center. Metal Supermarkets Baltimore has been providing businesses, governments and industries with high-quality metal products and services for over 10 years. Electro-Polished. For nearly a century, metal bar grating has been the predominant choice for open metal flooring. Using thermal metal spray technology, OnGrip® metal-grip surfaces bond with carbon steel, stainless steel or aluminum surfaces for enhanced traction. 3820 [email protected]® carries a diverse inventory of Bar Grating options. OUR LOCATION. Stainless Steel Hygienic & Sustainable with a Modern Appearance Stainless Steel has unique corrosion-resisting properties that prevent rust and surface stains. Grip Strut Ladder Rungs Highly serrated diamond matrix provides maximum slip-resistance. Call us today (713)-649-5310. Grating allows light, heat, and air to pass through and is often used for industrial flooring such as mezzanines, ramps, platforms, and sidewalks. 6061. Bar grating is designed to hold heavy loads with minimal weight. 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. Stainless Steel Bar Grating is available in Plain or Serrated surfaces and comes welded (S), riveted(RS), or press-locked (SP). Expanded Metal Grating Size: 2# 3#. Engineers and designers work to develop metal grating solutions that exactly fit the parameters of a structure. In a grating with a mesh hole structure known as a “pressed steel grating,” the cross bars are pressed under intense pressure into the bearing bars. BEARING BARS (1/4", 5/16" & 3/8" THICK) & MAXIMUM PANEL WIDTHS CARBON STEEL & GALVANIZED STEEL CHART NO. 1-3/16in. 19W4/19W2 Carbon Heavy Duty Bar Grating 1-3/16" Center to Center of Bearing Bars. conditions make it an economical selection over the. 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. Their platform is a testament to. Select the primary material type including Aluminum, Carbon Steel, Galvanized Steel, or Stainless Steel. Catalog Library PDFs. 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. Metal Grip Strut™ Heavy Duty Walkway 8 Diamond (36 Inch Width) 10 Gauge 5 Inch Channel Height (GV) Heavy Duty Walkway. McNICHOLS® Bar Grating, Standard-Duty Welded, Rectangular Bar, GW-100, 19-W-4 Spacing, Stainless Steel, Type 304, Mill Finish, 1" 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 Spaced 4" on Center, 77%. Grating width 300mm. In-Stock catwalk included in Grating-Carbon Steel. Standard-Duty Welded - Carbon Steel & Galvanized Steel. Steel bar grating can be made of different materials including carbon steel, aluminum steel and stainless steel. Gratings are available in Standard series for pedestrian loads or Heavy Duty series for vehicular traffic. Manufactured from ASTM A1011, ASTM A36, S275JR and SS400 carbon steel, welded gratings are recommended for nearly all industrial flooring application. Typically manufactured from mild carbon steel, 6000 series aluminum and 300 series stainless steels, bar gratings are also available in specialty metal alloys. Stainless Steel Grating. C, Suite 312 Glen Ellyn, Illinois 60137 Phone: (630) 942-6591Brown-Campbell Bar Grating load tables enable the user to select the appropriate bearing bar size for the actual uniform and/or concentrated load carrying capacity and a corresponding deflection for each size/type of bar grating at a given unsupported spa. used in chemical industry, food processing, hydro processing and other industries, Maintenance platform and. It was originally designed specifically for use as brake steps, running boards, walkways, and platforms on railcars and locomotives. com (888)499-8494. It is available with a serrated or smooth surface. View Stainless Steel Bar Grating Products. B. Nosing is textured for traction. Alro's. TiteWeld ® Steel Bar Grating is ideal for very tight spacing requirements and maximum “roll-a-bility” requirements. 5 in. Pressed steel grating is created by cold pressing the cross bars to the bearing bars under a load pressure of 500 tons. 35 and 40mm are recommended. Unlimited custom patterns, with or without side margins, manufactured per customer specification. Material Finish: Mill Finish, Pickled Finish, Electro-polished etc. 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. Item: 6801312732. A 305 SPE9 FRP Load Table *NB. $195. McNICHOLS® carries a large selection of Heavy Duty Welded Bar Grating. This bar grating has a serrated surface that improves traction and helps reduce skids and slips as compared to smooth bar grating. All are available in 3. Stainless Steel - 19SW4; Stair Treads; Anchoring Devices. Specifications (PDF) Get Quote. Buy bar grating Trench Grates and Drain Covers online at America's Metal Superstore. 24188R125-C4. The Algrip laser deposition surface may be applied to the walking surface of nearly all gratings found in the Metal Bar. Qty: View Details Add To Cart. Perforated Metal. “WS” for stainless steel grating. The high percentage of open area makes bar grating practically maintenance-free, and all products are fully recyclable. Shop Stainless Steel Bar Grating at Brown-Campbell. Heavy Duty Walkway. Flat Bar. Water treatment, chemical processing, food processing, and outdoor industries can benefit from this grating type. Stainless Steel Bar Grating. Box 750518. Popular for highly corrosive environments and long-lasting architectural applications, stainless steel bar. long term. They are made from the mild carbon steel or stainless steel materials. Product Details Feedback. It gives corrosion resistance. Metal Supermarkets Knoxville is owned and operated by Integrity Associates Inc. It regularly appears on catwalks, factory floors, platforms, railing infill panels, and as Stair Treads. Channel. Finish: Mill or Polished. Hot. Stainless Steel. This field is for validation purposes and should be left unchanged. Shot blasting or wire brushing should be avoided since. 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. Flat Bar. Wire Rod for Grating Crossbars: ASTM A 510 (A510M). Channel. 496. Finishes include commercial quality (unpainted) and galvanised. 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. Download our catalogs in PDF format. Optional close rivet spacing of 3-1/2″ on center is also available. Typical applications include use in areas exposed to water, oil, or where slips are likely to occur. 4” 1 3/16” 50. Commercial Quality.