Labor also increases with the square footage and lands in the $800 to $2,000 range. Border Panel – ceiling panels cut to create a perimeter around the room; Main Beam – load-bearing beams of a suspension system that are hung with hanger wires; Cross-Tee – shorter steel beams that run perpendicular and parallel to main beams to form the grid openings that support the tiles. Installing a drop ceiling costs $5 to $28 per squarefoot for labor and materials, which falls in the middle range when it comes to installation costs across all ceiling types. From top brands including Armstrong, USG, and Chicago Metallic, get your 15/16” standard or 9/16” narrow width grid from Strictly. Chicago Metallic 1200 is a suspended acoustical ceiling grid. POPULAR APPLICATIONS Hospitals, hospitality, retail. A suspended ceiling has aesthetic advantages, as it covers up beams and studs that would otherwise be exposed. 2' Cross Tees. Then, get an estimate of materials needed for your project. 1-800-323-7164 I [email protected]: The 2” cleanroom grid is typically used in ISO-5 and ISO-6 cleanrooms. 12 Gauge Wire; 4H24 / 4H58; 708 AB / 708 AO / 708 24 / 708 58; Acoustical Clips / Fasteners;Get the best deals on Industrial Ceiling Grids & Suspension Systems when you shop the largest online selection at eBay. Chicago Metallic® Spanfast® Drywall Grid System is available in a heavy-duty design, and is built with HDG 40 steel. 40/SF annually. Chicago, IL 60638 1-800-323-7164 cs@rockfon. Chicago Metallic™ T24 Click D2890 ECR Class D deflection. Technical Service. n Chicago Metallic suspension systems meet Class-A flame spread rating in accordance with ASTM standard E84 Applications n Corridors n Condos. com Features and Benefits n Drywall Grid System which reduces the need for hanger wires at spans of 7' or less n Minimizes labor and material costs n Heavy Duty drywall grid construction increases strength and decreases roll-over during installationInstalling a Chicago Grid Ceiling is one of the most popular ways to bring elegance and sophistication to any room. Material. Chicago Metallic™ T24 Click 2890. Description Performance Profiles and Accessories Downloads and videos Sales - Installers - Distributors A strong and stable grid which can be easily demounted time and again. Select your country Africa; Asia; Australia & New Zealand; Europe;ARMSTRONG ceiling panels options specifically sized for DYNAMAX. Sound Isolation Hangers are designed to support internal suspended ceiling grid systems while providing optimal acoustic isolation. Grid Spray Can - White 1 1 250351 & 250352 940. . 4YOU Samples, Literature 888 874. Building management recently decided to renovate the tower's 1,000 square-foot boardroom to create an optimized hybrid meeting environment. Zillow has 34 photos of this $959,900 3 beds, 3 baths, -- sqft condo home located at 2031 W Belmont Ave #3S, Chicago, IL 60618 built in 2023. com rockfon. Avoid tile uplift in door openings and other locations with Universal Clip. Expert drop ceiling installation Chicago IL. Chicago, IL 60661 Notice The information in this document more information about exterior ceiling applications. Some ISO-5 cleanrooms have 100% HEPA ceiling coverage. Install tiles. Source: CISCA zones 3-4Drywall Grid Systems. Hanging Framing Flat Ceilings - Armstrong World IndustriesRabu, 22 September 2021. Grid Spray Can - White 1 1 250351 & 250352 940. Suitable for Single or Double Joist. Along with design flexibility, metal ceilings can deliver strong acoustic performance. 50 to $3. The USG Wall-to-Wall Drywall Suspension System is designed for use in corridors and smaller rooms as an alternative to conventional framing methods. These are easy to wire as there are only three wires to connect. A drywall grid family of solutions for flat and curved applications, corridors, soffits, clouds, transitions, and integrations. Insulation tile backing: An additional $2 per square foot. T Bar Ceiling Systems are low-cost, easy to install, and easy to modify ceiling tile systems. , cannot exceed the load capacity of the grid. ) 650 Furring Runner – 4' O. Ceilings About USG. This precision-applied, factory-installed, closed-cell PVC foam gasket grid restricts air movement between cleanrooms’ plenums and the clean process work areas. com. Purchase products and supplies for Drop ceilings. Among the advantages of our suspended drywall grids are their superior installation time. 1. Z. Need Help? Corporate Office 1-905-803-5600 Customer Service 1-800-387-2690 Email Us Contact Us. This gypsum panel suspension system is an ideal choice for short spans or congested plenums where installing hanger wires is difficult and time consuming and, in many applications, eliminates the need for hanger wires. Chicago Metallic® Drywall Grid Systems are heavy-duty, available in non-fire rated and fire rated construction and are built using HDG 40 steel. The fire rated grid components of this system are designed with expansion reliefs, making it suitable for fire-rated ceiling assemblies. com stocks thousands of products including LED Lights - LED Bulbs - LED Fixtures and ships the same business day. com Date: 10. NRC 0. URB Concealed Grid System and TileExpect water damage ceiling repairs to cost between $45 and $55 per square foot, including everything needed for the job. Chicago Metallic® 200 Snap-Grid™ 15/16" Exposed. (only selectable colors are part of FAST134 program) Panel Size (Width x Length) : 24" x 24". Help me understand. Seismic. Find standard and. This is the “C” shaped, 1-1/2″ black strut that is bolted to the concrete deck or wooden beams using CADDY® hangers to create a secure mounting point for the grid ceiling runners. With ceiling material types ranging from acoustical panels and drywall to wood and metal, we have something. 12' Main Beams. 6 /11. This drop. ÐÏ à¡± á> þÿ ˜ š þÿÿÿ. Directions: First enter the total square footage of the room. 01 12 oz. Clean, Elegant Aesthetics. Chicago grid with drywall. ): $0. combining sound absorbing ceiling tiles and specialty metal panels with suspension grid systems and accessories. 4050 - Rigidlock 'Slim Tee' is a narrow flange exposed grid ceiling system designs of fire tolerance panels mainly of mineral fibre. com fire-rated ceiling assemblies n Suitable for Seismic Design Categories A-C only n Chicago Metallic suspension systems meet Class-A flame spread rating in accordance with ASTM standard E84 Applications n Offices n Retail n Classrooms n General Interiors Chicago Metallic® 200 Snap-Grid™ 15/16" Chicago Metallic® 250 Snap-Grid™ Fire-Rated 15/16" Ceiling Grid. 1-800-323-7164 I cs@rockfon. Designed for use in ISO 14644-1 controlled environments, our Chicago Metallic® BarrierGrid® metal suspension system features ceiling gasketing. This gypsum panel suspension system is an ideal choice for short spans or congested plenums where installing hanger wires is difficult and time consuming and, in many applications, eliminates the need for hanger wires. Hilux board cut to size are laid into the grid to provide a neat and clean false ceiling. The 15/16" Prelude XL Grid System is used to install suspended (drop) 24" x 24" and 24" x 48" ceiling panels. Each 10-oz tube of adhesive should be enough to install three of these planks, depending on the amount applied to each plank. Chicago Metallic® 730 Stainless Steel 15/16" Exposed. The renovation of Chicago’s O’Hare International Airport Terminal 5 showcases the L&W Supply team’s ability to partner and coordinate with. Title: Chicago Metallic® G90 Drywall Grid 1-3/8" Created Date:Feb 25, 2015. . 5 mm. . 38mm components provide better load bearing and compatibility with accessories. Chicago-based CMC is a global provider of ceiling products and services including suspended grid systems and metal ceiling panels. $74. Performance Properties: -Strong, code. Thank You. 8. High light reflective finish (LR-85) looks elegant and reduces fixture and energy use. QUICKHANG Grid Hook Kit, 6 in. 24" x 24" EASY ELEGANCE Deep Coffer White. The. SNL0255I1814 Chicago Metallic Suspension Systems Suspension Systems. This drywall grid features seismically compliant stab-end. Chicago Metallic 1200 is a suspended acoustical ceiling grid system with seismically compliant stab-end cross tees and fire-rated components. Great for drywall perimeters around coffered ceiling. exposed grid acoustical ceiling suspension system is available in intermediate and heavy-duty designs, non-fire rated and fire rated construction, and is built using HDG 30 steel. Read more Visit our case study library. Chicago Metallic® suspension systems can provide an exposed or concealed ceiling grid for your commercial drop ceiling installations. semi concealed and concealed. Wall Angle Covers install everywhere your grid runs along a wall. 1200. Seismic. Chicago Metallic® 200 Snap Grid™ 15/16" Exposed grid ceiling system is available in intermediate and heavy-duty designs, non-fire rated and fire rated construction, and is built with HDG 30 steel. Overall, CertainTeed's Classic Stab System is an ideal solution for anyone looking for a comprehensive and easy-to-install ceiling installation system. 00 Seismic Separation Joint Clip is a ceiling grid accessory that sits on top of suspension system members to provide a more atheistically pleasing solution for seismic D, E F installations. Grid & Suspension Systems. Part of The ROCKWOOL Group Chicago Metallic® Drywall Grid Drywall ceiling suspension system Ideal for: Hospitals, hospitality, retail, obbies, l department stores,. (1) $7. Each lightweight rigid PVC (plastic) coffered panel is 24" x 24", available in either deep or shallow styles, and comes in white or black. Ceiling Systems and Specialty Products - USA and Canada: 800. These access doors meet Class A for flame spread, per ASTM standard E1264. Rockfon North America. Chicago, IL 60638 1-800-323-7164 [email protected] ceilings can instantly upgrade the aesthetic appeal of any room. Grid Spray Can - White 1 1 250351 & 250352 940. . All our Rockfon® and Chicago Metallic® ceiling suspension systems are tested per ASTM E3090, C635 and compliant with ASTM E580 requirements and capable of meeting all Seismic Design Categories (SDCs). Get Quotes and Book Instantly. assumes. Chicago Metallic® Spanfast® Drywall Grid SpanFast™ drywall framing system reduces onsite labor by using a pre-notched drywall ceiling track to lock the furring tees in place. Use the Drop Ceiling Calculator to help lay out a 24" x 24" and 24" x 48" ceiling. Now that you know what coffered ceilings are, here are a few benefits to adding them to your home: 1. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup. 600 x 600. Chicago, IL 60638 1-800-323-7164 cs@rockfon. Trim with scissors as needed in corners, and use three pieces for 2 ft. 10' Main. This ceiling grid is only available in the "Hook" type system. point load rating using 3/8". On 2023-01-26 by InspectApedia Publisher - fiberglass ceiling panelsInstall your drop ceiling quickly and easily with products from Strictly Ceilings. It is available in intermediate and heavy duty designs, non-fire rated and fire rated construction, and in various colors and RAL options. Performance. School ceiling tiles and suspended ceiling grid are the key components of a complete ceiling system that can help you create healthy, safe. Grid Spray Can Learn how to install Drywall Grid Fast with Strictly Ceilings. We provide customers with a complete acoustic ceiling system offering, combining sound absorbing ceiling tiles and specialty metal panels with suspension grid systems and accessories. Adjust borders. Rockfon North America 4849 S. The strut used to hang acoustical tile is called Black iron. ROCKFON, LLC 4849 SOUTH AUSTIN AVE. View product. Chicago Metallic™ Flexible Wall Angles ensure fast and aesthetic finishing of suspended ceilings towards irregular walls and columns. The needs of architects, project managers, and builders can be met with our suspended acoustic ceiling panels, acoustic false ceilings, and acoustic drop ceilings. 18. L&W Supply’s branch network provides a wide assortment of acoustical ceiling tile and grid products to meet the needs of your commercial project. Seismic Performance: Acoustical ceiling shall withstand the effects of earthquake motionsI need help finding the right box and hanger for a ceiling that's being installed in a house I'm working in. Chicago Metallic suspended ceilings - [asbestos use not confirmed, dates pending - Ed. Our fire resistant ceiling tiles are engineered to meet the most stringent industry standards. The Chicago bar is then clipped to the block irons with a spaghetti clip to create a grid for the new drywall. Chicago Metallic® Drywall Grid Systems are heavy-duty, available in non-fire rated and fire rated construction and are built using HDG 40 steel. Chicago Metallic 200 Snap Grid 15 16 Ceiling System. Then select the submit button to get the approximate number of materials needed for your project. Heavy Duty. 410. Photos on grid: large square = 1in, small square = 1cm. ceiling panels, lights, diffusers, the cables and wiring, etc. These mesh ceiling panels may also be installed with CubeGrid® suspension for a greater choice of suspension finishes. For more information, call 76-7876 Traditional Armstrong® Ceiling Solutions FrameAll™ Drywall Grid System – 90° Soffits Armstrong Ceiling Solutions 90° Soffit Traditional 90° Soffit Faster, easier, and better way to frame drywallKnow your ceiling and grid terms. This cleanroom grid system is available in both seismically approved stab-end cross tess and demountable hook-end cross. 4 is horizontial assemblies. 2. More than 600 Rockfon Planostile 2-by-2-foot galvanized steel ceiling panels with lay-in reveal edges were installed into the Chicago Metallic 4000 Tempra 9/16-inch suspension ceiling system. This drop ceiling grid. 00 Product #: CMCG View Product. com. Chicago Metallic Corporation is a global provider of commercial and architectural building products, including drywall grid. x 4 ft. Heavy Duty drywall grid design features stab-end and hook-end cross tee options. Lagmaster PLUS 24' Fastener Pole & 7-piece Kit (LMP-24) $375. 134 square feet: $151. B Floors/Ceilings 24-44 Steel-framed, including steel bar joist framing, steel C-joist framing, and steel truss; wood-framed, including dimensional lumber, engineered joist and truss; and structural concrete. Chicago Metallic® 4000 Tempra™ 9/16" Exposed grid ceiling system is available in both intermediate and heavy-duty designs, both non-fire rated and fire rated construction, and is built with HDG 30 steel. combining sound absorbing ceiling tiles and specialty metal panels with suspension grid systems and accessories. Austin Ave. Install the main runners or perimeter channels along the edges of the ceiling. Ceiling grid systems can be painted black. Tel: 020 8222 7457. See Table 720. Download. Wall Moldings are used as finishing trim to hang against the walls in the space. U-Channels. All of the tools you need to install your suspension system quickly and easily. $846. Supports up to a 900 lb. These listings. Factory gasketed ULTIMA AIRASSURE for DYNAMAX panels reduce air leakage and save an average energy savings of $. Listed clips IDENTIFIED FOR USE WITH THAT TYPE OF CEILING FRAMING MEMBER AND LUMINAIRIE shall be permitted. This recommendation applies to the installation requirements of direct-hung Armstrong® FrameAll™ Drywall Grid ceiling systems, receiving flat, single-level gypsum panel products surrounded on all sides by a wall, bulkhead, or soffit braced to the building structure to resist the effects of earthquake ground motions. United Kingdom (English) (UK) We provide customers with a complete acoustic ceiling system offering, combining sound absorbing ceiling tiles and wall panels with suspension grid systems and accessories. Ceilings Materials Estimator Area to be Covered Specify Area By: Length & Width Length & Width Square Footage * Length of Room ft. Sustain. Explore Rockfon’s range of ceiling grid tiles and systems. Color match Ceilume's White ceiling tiles. 24" x 24" SAHARA. x 24 in. Up to 3x faster than traditional stud and channel framing. uk. For any space that requires. #15 · Sep 19, 2018. Monolithic appearance with fine finish in standard white and custom colors. 200/250 Snap-Grid ™ 15/16” / Hook / HDG Steel Body / Zinc-Coated Steel Cap / Fire-Rated Available. 3-3, the Life Safety Code of the National Fire Protection Association, Inc. Download. USG is your resource for suspended drywall ceilings. This drop ceiling grid features demountable hook-end cross tees for a quick and easily assembly. Shop for Chicago Metallic 200 Series 15/16" Exposed Grid Ceiling System, a drop ceiling grid with demountable hook-end cross tees and fire-rated options. Chicago Metallic® 730 Stainless Steel 15/16" Exposed grid ceiling system is available in an intermediate-duty design, is roll formed entirely from 304 stainless steel, and is the most resistant of the Chicago Metallic™ grid systems to corrosion. com CHICAGO / BALTIMORE / LOS ANGELES / BELGIUM / DENMARK / THE NETHERLANDS / UK / GERMANY / FRANCE / HONG KONG / PRC / MALAYSIA /. View products. Chicago, IL 60606 SC2233/rev. Available in either the 15/16" or 9/16" width 8 Drywall Grid Systems chicagometallic. Featuring demountable hook-end cross tees for a quick and. com 2 Materials and. 1. The addresses on all east-west streets are prefixed with “east” or “west,” depending on whether they fall east or west of State Street. Donn® Brand Acoustical Suspension System Accessories; provides everything you need to install your suspension system. The system works with the minor grid system simply attaching to. It's a metal chicago grid ceiling and they're. Performance. Chicago Metallic® 4000 Tempra™ 9/16" Exposed grid ceiling system is available in both intermediate and heavy-duty designs, both non-fire rated and fire rated construction, and is built with HDG 30 steel. This gypsum panel suspension system is an ideal choice for short spans or congested plenums where installing hanger wires is difficult and time consuming and, in many applications, eliminates the need for hanger wires. rubber/latex coating or polyethylene gloves when handling Rockfon ceiling tiles and grid to avoid contamination. In addition, grid rails. C. Here is a selection of projects that. +1-800-323-7164 I [email protected] and CAC 40. . $3. . I have been researching information about what some people call a "Chicago grid" drywall ceiling system. A strong and stable grid which can be easily demounted time and again. Chicago Metallic 1200 15/16” seismic. 5" x 84" WOODHAVEN Classic White. Rockfon-Chicago Metallic Suspension Systems-acoustical grid systems cleanroom exposed drywall designer-Brochure Subject: Get to know our Chicago Metallic drop ceiling suspension system including, exposed grid, drywall framing, cleanroom suspension, and designer grid systems. If funds don't allow a job to be done properly, it's better to just wait until funds do allow. +1-800-222-3744 | | cs@rockfon. Contact ClarkDietrich Technical Services at 888-437-3244 for any questions about Drop Ceiling Assemblies. Call us with your needs and let us schedule a delivery for you. Steel and. About USG. It allows for design flexibility with modern. 99. Please contact us for sizes not available online. Part of RCWL Group 022323 USA and Canada: Tel 1-800-323-7164 I cs@rockfon. In this video Tim shows you how to install a susp. Chicago Metallic® BarrierGrid® Standard 15/16" and Premium 1-3/8" Exposed Gasketed ceiling grid systems are available in a heavy-duty design, and are built with HDG 30 steel and an aluminum cap. Find where you can buy drywall, ceilings, floors, sheathing and roofing products from a distributor or retailer near you. Use hat channel for your runners. 36(B) Luminarairs shall be securely fastened to the ceiling grid member by mechanical means such as bolts, screws, or rivets. The Unistrut Metal Framing System has long been viewed as the gold standard when installing ceiling grid systems. Installing a Chicago Grid Ceiling #metalframing #dropceiling #chicagogrid #drywallnation #drywalllife #contractorDocs Ceiling Hanger Hardware; Rockfon Chicago Metallic Grid; Rockfon Tile; Rockfon Grid Accessories; Rockfon Infinity; Rockfon Color-All Standard Program; Gallery; More. The national average cost for installing a drop ceiling is between $955 and $1,510, with most people paying around $1,494 for a 130 sq. For support, drop a 2'x4' piece of 1/2" plywood on top of the tile and thru bolt a fan/pan box with 1/4 x 20 screws/nuts/washers. point load rating using 3/8". The 2” cleanroom grid allows customer to mount tear drop lights on the grid and also mount special sprinkler. From top brands including Armstrong, USG, and Chicago Metallic, get your 15/16” standard or 9/16” narrow width grid from Strictly. 276 Fire-Rated Ceiling Assemblies Suspension Ceiling Designs Floor/Ceiling Designs— A003 3 hr. Suspended Acoustic Ceiling Cost The system's components are made from high-quality materials and are designed to withstand the rigors of daily use, ensuring that the ceiling grid remains stable and secure for years to come. This drop ceiling grid features both seismically approved stab-end cross tees and demountable hook-end cross tees. Trust Armstrong Ceiling Installation Systems for your grid needs. Concealed grid systems are monolithic and elegant and can be suspended or directly fastened to the ceiling in renovation projects where the ceiling height may be very low. Pursuant to R. com rockfon. Ukraine (English) United Kingdom (English) United States of America (English) Compare 0/3. ft. Caddy CAT HP J-Hook Tree Ceiling Mount Double. 15/16". Commercial drywall grid systems from Armstrong Ceiling Installation Systems are faster & easier to install versus traditional drywall framing. Aesthetics & Design – Acoustic ceiling design ideas go beyond smooth, white, modern monolithic 2x2 tile and grid drop ceiling systems. x 2 ft. 2. COM OR CGCINC. 7 hours ago · The Chicago Bears played great football in all three phases for most of last Sunday's game in Detroit, but a late game collapse has truly doomed this season. I. HVAC repairs: $200–$1,500. Roof replacement: $3. Width Inches - 15/16. Available in either the 15/16" or 9/16" width8 Drywall Grid Systems chicagometallic. Grid Suspension Systems. Ceiling grids from Rockfon Chicago Metallic® combine trusted performance, easy installation, multiple grid options and seismic performance. Below are just a few examples. Hot-dipped Galvanized Steel. Chicago Metallic Suspended Ceiling Grid $0. Yes the support walls or columns and beams. 650 Furring Runner – 4' O. Hanger Holes: MAIN TEES – 3/4 each side of cross tee slot, and 2 additional holes equally spaced between cross tee slots. Chicago Metallic® 260 Aluminum Cap 15/16" Exposed, fire-rated acoustical suspension system is available in Intermediate and Heavy-Duty designs, and is built with hot-dip galvanized steel (HDG-30) with 100% aluminum cap for added corrosion resistance in interior environments. The Chicago Grid also offers a variety of. 2253 Views 13 Replies 9 Participants Last post by Shockdoc, Dec 10, 2013. DLCCAGThe innovators of the FRP grid system. Featuring the USG. 03: $185. I hope you will be inspired about Ceiling Suspension. 01 12 oz. size, identical to the USG Eclipse. they are from suspended drop ceiling in basement which simply laid in the suspened grid system. assumes no responsibility or any errors that may inadvertently appear in this document. Great for drywall perimeters around coffered ceiling. semi concealed and concealed. Installation Instructions: North America 4849 S. 46. Burlap Beauty. We provide support for GSA purchases. Metal Furring Channel Clips. In this video Tim shows you how to install a susp. Chicago Metallic Suspended Ceiling grid is offered in either the 15/16" standard width or the 9/16" narrow grid. Capping off a commercial property calls for a ceiling system that provides functionality, durability and aesthetic appeal. Chicago metallic drywall grid chicago metallic 200 snap grid 15 16 steel ceiling suspension system 640 metal suspended ceiling cubegrid. COM OR CGCINC. Fit standard (15/16 in to 1 in. See how to quickly and easily remove and reinstall a cross tee from a grid system. DROP CEILING GRID INSTALL KIT (10) $ 16. 650 fire-rated. Length of hanger wire will be distance from ceiling to anchor point plus 2 feet extra to allow room to adjust and tie. #9. Chicago Metallic® 260 Aluminum Cap 15/16" Exposed, fire-rated acoustical suspension system is available in Intermediate and Heavy-Duty designs, and is built with hot-dip galvanized steel (HDG-30) with 100% aluminum cap for added corrosion resistance in interior environments. 2. Explore our ceiling grid today. By using Isolation Hangers made with resilient rubber at regular intervals along the suspension system, sound waves. 2 Down Braces – Must be sized by designer andChicago, IL 60661 Notice The information in this document is subject to change without notice. Traditional grid products from Chicago Metallic provide options for well-designed, sustainable and economical commercial ceilings. QUICKHANG Grid Hook Kit, 12 in. com | 10-2015 12" 12" 8" 8" 2 3 /4" (typ. Drywall Grid Accessories; Suspension System Accessories; Wall & Step Moldings; Erico / Caddy. Corrosion resistant system installs quickly. Transform an Old Drop Ceiling Grid. " -HackWork. galvanized steel wire in straight lengths #2 Philips round washer-head or similar400 sq. Supplier of ceiling accessories in NYC: Manhattan, Brooklyn, Queens, Bronx, Staten Island, Long Island, Westchester and Northern New Jersey. Web is stitched for added strength. Downloads and videos. Model #: 1282BXA. 2. We offer a variety of standard, custom, and premium perforation options. They slide easily onto your wall angle and are pre-cut to fit 2ft. Protected by a 25-year warranty. Everything I read says that I should run the sheets parallel to the joists for strength. Chicago Metallic™ Flexible Wall Angles ensure fast and aesthetic finishing of suspended ceilings towards irregular walls and columns. g. For any space that requires plenum access, acoustic performance, and health and safety benefits, choose a ceiling tile grid that supports Rockfon stone wool tiles and panels, and speciality metal and wood. One #10 x 1 1/4 inch screw holds the box at rough in. Aside from aesthetic considerations, coffered. 4' Cross Tees. exposed grid acoustical ceiling suspension system is available in intermediate and heavy-duty designs, non-fire rated and fire rated construction, and is built using HDG 30 steel. 44 12. Mounting Options for Ceiling Lights. The meaning of GRID CEILING is a perforated ceiling that allows light to shine through.