1 CEILINGS - FON+ T-60 profiles concealed acoustic. Suspended Acoustic Ceiling CostCeilings. Exposed grid. Donn® Brand DXSS™ Acoustical Suspension System is a cost-effective ceiling suspension system providing protection in industrial environments and laboratories where the entire grid system must withstand the rigors of a humid. View line. 9/16" Dimensional Tee, houses most fixtures. We can help by delivering accurate drawing packages that streamline the entire project process – from design and quoting through takeoffs and installation. WHAT YOU'LL LIKE ABOUT OUR KEY-LOCK® Ceiling System. Ceiling Grid Suspension System, Trim, Transitions Recommended use of the chemical and restrictions on use Recommended use Ceilings Restrictions on use No information available. SUPERLOCK main beam clip is engineered for a strong, secure connection and fast, accurate alignment. Search for ceiling contractor in your area for your acoustical ceiling needs. No jig or fabrication required, ready out of the box. With an integrated commercial ceiling system from USG, builders and architects can streamline their projects while producing a wholly unique design. Suspended/Drop (accessibility) Duty Ratings. 15/16 in. read more. Specialty Ceiling Systems No matter the material, the application or the shape, USG Specialty Solutions and USG Ceilings Plus® will make it happen with endless design possibilities that are anything but by-the-book. PRELUDE XL 15/16" | Armstrong Ceiling Solutions – Commercial Home Suspension Systems PRELUDE XL 15/16" Exposed Tee PRELUDE XL 15/16" Exposed Tee This hot. Cost to install suspended ceiling grid. Classic X™ works with most standard 2-foot-by-2-foot and 2-foot-by-4-foot ceiling tiles and is fire-rated. 95. Call Toll Free 800-825-1221 | Request a Quote | Email: info@continentalflooring. SUPERLOCK main beam clip is engineered for a strong, secure connection and fast, accurate alignment. 5 Institutional Market Size 10. Browse & Download Product Specs & Data. Description Details Files. Featuring integrated lighting, ductwork, and other utilities, our solutions create a seamless finish that can fit a variety of applications. Tiles, panels, grids, systems—USG has design specifications & estimator tools for a variety of commercial ceiling solutions. View line. The Classic Stab System features a range of components, including main tees, cross tees, wall molding, hanger wire, and accessories, all of which are designed to work together seamlessly to provide a strong, stable, and level ceiling grid. Finished White ACOUSTIBUILT panels are part. Explore all wood ceiling systems. Add a layer of protection with a PRELUDE 15/16” grid system with FIRE GUARD main beams by Armstrong Ceilings. See All Sizes & Options. In place of tiles, it is possible to add lighting. 2m hanger spacing). Browse our inventory to find the drop ceiling. Save time, material, and labor with these corridor ceiling solutions. View our wholesale ceiling tiles here. Over time, we have broadened our product offer and, here in 2023. In fact, surface mount ceiling grid systems can be installed in lieu of drywall ceilings. Provides a structure to hang signage or lights, and creates transitions for speakers and HVAC. coverage area (102 lineal ft. INTERLUDE XL HRC. With years of experience and a team of skilled professionals, we are. TECTUM Wood Fiber. Ideal for the commercial remodeler or do-it-yourselfer, the system has a patented quick-release cross-tee clip for easy installation and provides a square, sturdy ceiling that can be used for fire-rated or general applications. Alcon 12100-40-R-CW LED Linear Recessed. Classic X™ works with most standard 2-foot-by-2-foot and 2-foot-by-4-foot ceiling tiles and is fire-rated. New features enable you to bookmark pages, take notes, and create. GridMAX® ceiling grid covers are made of high-grade vinyl that's easy to clean and maintain. In walls or ceilings with a surface of concrete, tile, gypsum, plaster, or other noncombustible material, boxes employing a flush-type cover or faceplate shall be installed so that the front edge of the box, plaster. Save time with full-scale 3D Revit Models from PROJECTWORKS - Learn more!. Drywall/Stucco/Plaster, Exposed Tee. Federal, State, County, and Municipalities. ceiling tiles into a ceiling grid system; suspends from floor joists. We are experienced in all types of suspended ceiling grid systems. Our fire resistant ceiling tiles are engineered to meet the most stringent industry standards. This 10-15 CFM represents a couple of percent of the total HVAC flow. Angle and Offset Bracket Supports. From durable Sheetrock ceiling panels to more elegant options, there’s something for practically any type of property. The IRC R501. or trusses with a material capable of supporting the ceiling system load. Just pop the old tiles out of the ceiling grid and carefully drop the new ones into place. And measure 595 x 595mm designed to fit into any 600 x 600mm. Unistrut’s unique array of channel. When it comes to finishing a residential project, architects and builders know they can count on USG’s residential acoustic ceiling tiles. Cross tees shall have a minimum load carrying capability of 16 pounds per linear foot per ASTM E580 Section 5. Ceiling, Wall and Installation Systems that make a difference and contribute to improved indoor environmental quality. On average, homeowners can expect to pay between $2 and $5 per square foot for installation. We specialize in the design, installation, and maintenance of suspended ceilings, also known as drop ceilings. Narrow Results By: Product Family. The sturdy frame is easy to handle and installs directly into a grid ceiling using the built-in T-bar clips. 3. Drop Clips (2" - 12") Flange Clamps. 10-Year Limited Warranty; 30-Year Limited Warranty. plastic suspended ceiling with trim. Open Cell metal ceiling systems are designed to provide a continuous open cell ceiling appearance while maintaining the ease of accessibility of ceiling suspension and panel systems. Ceilings. Integrated Ceiling Systems. This evaluation and confirmation by ICC-ES provides evidence supporting the Armstrong SEISMIC RX as a code-compliant alternative to IBC requirements. The integrity of the entire suspended ceiling depends on the hangers –SIMPLESOFFIT – a pre-fabricated drywall soffit framing system. An FRP Ceiling Grid System is. SUSPENSION CEILING INSTALLATION IN SEISMIC ACTIVITY ZONES, IN ADDITION TO ASTM 636 1 Ceiling areas of 1000 ft2 [92. Water Repellent, Soil Resistance, Scrubbability, Washability. PEAKFORM profile increases strength & stability. Download Data Sheet. Halcyon™ Logix™ Acoustical Panels. Clips can help with installations, make transitions easier, aid with squareness, and ensure building requirements are met. All FrameAll products carry a “Made in the USA” label indicating at least 95 percent. PRELUDE ML 15/16" Exposed Tee commercial grid system from Armstrong Ceiling Installation Systems. Guaranteed savings of up to 30% on the cost. USAI Lighting and Armstrong Ceiling Solutions have partnered to offer architects and designers new ways to seamlessly integrate recessed downlights with architectural ceiling systems. • An unlimited range of vaults and valleys can be constructed using faceted main beamsFaster, easier, better way to frame Drywall Soffits of all types. Cross tees available in ML and XL (staked-on end detail); secure connection; easy to remove, reuse/relocate. Browse & Download Product Specs & Data. Good: NRC 0. Lay-In Ceiling Panels are more common today. The problem is that budget, timeline, scheduling, and constructability often get in the way of your vision, which can make you feel overwhelmed, worried, and. Aside from adhering to government standards, they offer excellent fire protection. 20? 314. ft. Ceiling grid • Full grid systems • Wall mounts • Main beams • Hanger Wire . Product has AC (Articulation Class) 170 or greater. Environmental Tee commercial grid from Armstrong Ceiling Installation Systems. If the hook needs to be shortened due to an obstruction, the top portion can be bentSpecialty Ceiling Systems. Solutions by space. in the supply of acoustic ceilings. The items used to make this type of ceiling include the ceiling tile,. Step 3: Calculate Room Size. See More. Suspended ceiling kit - 600 mm2. Acoustical Suspension Systems; Trim & Components; Drywall Grid Systems;. Our different ceiling grid systems include drop. 75 / CAC 35+ (Total Acoustics Better) ( 8)Transform your images onto custom perforated METALWORKS CREATE! ceiling panels for a unique aesthetic plus acoustical performance. 1 CEILINGS - hanger free. Our commercial-quality ceiling grid system features standard 15/16-inch capped grid face and a double web design for. Download. Commercial Electric commercial lighting troffers are built to last for 50,000-hour and come with a 5-year warranty. 016". Suspended Ceiling Grid Systems Revision Date: 17-Mar-2020 Methods for cleaning up Pick up and transfer to properly labeled containers. C. PRELUDE 15/16" Exposed Tee Systems ( 5) SUPRAFINE Exposed Tee System ( 5) Drywall Grid Systems ( 4) TECHZONE Suspension Systems ( 4) SILHOUETTE 9/16" Bolt Slot Systems ( 2) 360 Painted Grid System ( 1)Fire Performance. With one partner for all your ceiling needs, you have the time and flexibility to drive value. . . One of the most common panel system is the “tee” system. Look of drywall in a seamless acoustical ceiling and wall system (install on walls above 7 feet to prevent damage) Get total noise control and floor plan versatility with TOTAL ACOUSTICS ceiling panel options: NRC + CAC = TOTAL ACOUSTICS Performance. 4. Our suspended ceiling grid systems are a perfect fit almost any project. We provide support for GSA purchases – learn more about GSA Schedule and Allied States Cooperative Contracts. Link to downloadNUDO'S line of commercial ceiling panels are built for easy installation, sanitation, durability and low maintenance. For a detailed comparison between two ceiling types, simply click on of. Application-specific clips and other items may help complete your project. wall mouldings, 9 hanger wire fasteners and 25. Link to download. The effect was to create a monolithic look while still providing access to services above the ceiling. With both concealed or exposed grid suspended ceiling systems, we have a solution available to meet acoustic, fire-rated, wind loading and seismic design requirements. 50 – $6. Class A. In a side by side test, Armstrong’s ceiling solution withstood the E-84 fire testing for 23 minutes and 40 seconds versus traditional gypsum or plywood. Available in 2’x2’, 2’x4’, and 4’x4’ suspended system layouts. The Paraline® II and Paraline® Plus systems have been tested for wind load resistance. DYNAMAX Plus Structural Grid. The Boys and Girls Club of Lancaster reduced noise in their 5000 sq' multipurpose gymnasium by more that half. Browse our integrated ceiling products to find one that. Durability. All Industrial. Miscellaneous installation accessories (wires, clips, etc. SUPRAFINE Exposed Tee System ( 5) TECHZONE Suspension Systems ( 4) DYNAMAX ( 2) SILHOUETTE 9/16" Bolt Slot Systems ( 2) 360 Painted Grid System ( 1) Environmental Tee Systems ( 1) Exterior Application Systems ( 1) INTERLUDE 9/16" Dimensional Tee Systems ( 1) PRELUDE Concealed Tee System ( 1)Black acoustic drop ceiling tiles are ideal for drop ceiling grid systems and are available as a 2 Ft x 2 Ft or 2 Ft x 4 Ft grid ceiling tile. QuickHang hardware allows for ceiling drops from 2. Angle molding, shadow molding, channel molding, and other wall moldings are an important detail in the design and installation of each ceiling system. Find a distributor for Armstrong Ceiling. Beamgrid® is available in a range of cross sections and module sizes which can be selected to suit the scale of the space. Various acoustic requirements can also be met. Additionally, our suspended gypsum ceiling options include products designed for smaller spaces. We encourage you to visit the Technical & Downloads page for full warranty details and downloads. 3. Armstrong Ceiling Solutions provides the broadest portfolio of integrated solutions in the industry. We take great pride in helping you improve construction efficiencies and job-site production while making sure your design intent is maintained. SUSPENSION SYSTEM COMPONENTS 1 The main runners and cross runners of the ceiling system and their splices, intersection connectors, and expansion. Steel Ceiling Grid Systems SDS. Drops for this ceiling support grid are fabricated from threaded rod suspended from Unistrut framing channel, which is attached to the roof structure with Unistrut beam clamps. Our ceilings are custom designed to attach to a standard commercial T-Bar in a variety of ways – giving you easy access to mechanical, electrical and plumbing in the plenum space. SUPRAFINE XL 9/16" Exposed Tee - XL7540 is part of the SUPRAFINE XL 9/16" Exposed Tee line from Armstrong Ceiling Installation Systems – Commercial. Our Drop Ceiling Showroom captures the modern edge of a 9/16" grid system installation. The selection of the right ceiling is important – now more than ever – to bring performance benefits, like acoustics, to the spaces you design. No jig or fabrication required, ready out of the box. Armstrong Ceiling & Wall Solutions continues to pave the way for ceiling solutions in every space – including office, healthcare, and education. Exposed tee grid systems may be continuous or have an integral reveal. This is the same method we use to teach and show our crew how to install 650 grid for drywall ceilings. Hot-dipped galvanized coating inhibits red rusting better than other systems. 6 below or custom designed systems, when approved by DSA. Create Specification. Or to replace an existing ceiling tile in your current grid system. Dimensional Tee Grid Systems. It can be installed in 2x4 design as well as 2x2 grid patterns. Popular Products. Manufactured from hot-dipped galvanized steel complying to BS2989 and JISG3302. 9-10 AxiomBuilding Perimeter System 11-12 Rout Locations 12-13 Accessories 14 System Framing 15 Type F Fixtures 16-19 Suspended Drywall Grid System 20 Hanging and Framing 21 Yoke Wire Hung Ceilings 22 Trapeze Supported Loads 23 Double Hung Ceilings 24 Triple Hung Ceilings 25 Exterior Wind Load Data 26-27 ®UL Fire Resistive Perforated metal ceiling tiles, decorative metal ceiling panels, and metal-look ceiling tiles are usable with Rockfon Chicago Metallic suspended grid products to create lines and patterns or conceal panel edges for a minimalist, monolithic look. Select fire resistant ceiling tiles from a broad range of looks and acoustic options to meet your design and functional requirements. C. Save time with full-scale 3D Revit Models from PROJECTWORKS - Learn more!. . These tiles are best suited for commercial kitchens or spaces where cleaning and durability are particularly important. These pieces can be cut to fit your space. 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. ft. Seismic. Products Overview; Products Overview. Accessories and Moldings. For surface mount ceilings, you can either attach the tile directly to the deck above with adhesive or use our EASY UP installation system. The Unistrut structural ceiling grid can be designed to handle loading requirements. With choices in grid face width, performance, and color, Armstrong Ceilings has the right suspended ceiling system for you. 69 %. USG EXTERIOR CEILING SYSTEMS 10 TECHNICAL DATA USG Paraline® ceiling systems may be used for protected exterior applications not directly exposed to the weather. A metal grid suspended from hanger rods or wires, consisting of main beams and cross tees, clips, splines and other hardware which supports lay-in acoustical panels or tiles. These superior ceiling systems offer enhanced durability in addition to added flexibility. Design Studio. 114" Main Beam Prelude XL, Routs 6" OC. 4. Because greater value is something we can all appreciate, USG Ceilings® has a full range of modular ceiling products that build on time-tested perspective and economies of scale. Suitable for clean rooms, food processing, data centers, and non-magnetic MRI suites (aluminum only). Ceiling Tiles are the tiles used to make up the drop. Achieve aesthetic beauty and high performance with USG Ceilings Plus® acoustical ceiling and wall systems. From baffles to pods, linear to curved, and countless finish &. Select fire. Aluminum ceiling grid and outdoor ceiling panels are a reliable choice for exterior suspended ceiling applications. Tile, Grid & Suspension Systems. Structure to hang signage, lights. Avoid contact withThe ceiling grid must be attached to perimeter supporting angle at two adjacent walls. Cost is based on thickness of the tiles and how elaborately they are styled. Hanger. Adjustable Trim Clip (7239) makes AXIOM Classic Trim compatible with WOODWORKS and METALWORKS panels that drop greater than 3/8" below the grid flange. We can help by. Diamond white vinyl-faced, premium quality plasterboard ceiling tiles that provide acoustic separation in commercial applications. Replaces inconsistent finishes and edge details with clean crisp factory finished panels and grid for a fast and easy installation. Manufactured with high-grade vinyl, the system eliminates rust and scratches without demolition cost, mess and downtime. The completed ceiling forms a barrier to sound, heat and fire. Ceiling and Wall Systems. 50 to $2. Sometimes, a ceiling grid suspension system cannot be installed in the industry sector. Start to finish. With an unparalleled variety of choices, no matter what your ceiling needs, we have you. Up to 0. Fire resistance is an important consideration for every ceiling system - no matter how simple or complex. Wide variety of designs – Catering to purely an aesthetic perspective, for functionality, or both. OPTIMA Concealed commercial tiles from Armstrong Ceiling Solutions. To get there, you need to create something that inspires others. 5. Available in SUPRAFINE 9/16" and PRELUDE 15/16" profiles. The global Ceiling Grid System market was valued at USD 710. Suspended ceiling tiles price - 10’ x 12’. pdf; Sustainability +-VOC Certificate of Compliance - Ceiling. Grid ceilings are sometimes. 1 Wall molding is not considered a load bearing component of most suspended ceiling systems, but it must be securely attached to the wall every 16" - 24" O. It has no visible grid and can integrate lighting, ventilation, and smoke detectors. Cutting “recessed grid” ceiling border panels 1. Eliminates unsightly threaded rod penetrations through the ceiling plane for improved access and aesthetics. We're here to help! If you have installation questions about a product not listed, please contact our TechLine Experts at 877-276-7876. 2 ft by 8 ft. Engineered for strong, secure connection. View More. With three levels of sound absorption and high sound-blocking performance, Total Acoustics makes it easy to choose the right ceiling for every space, every time. View the Strictly Ceilings Showroom to see ceiling grid designs. 90 with fiberglass infill panels (select perforation. Brrgo T Grid Ceiling 15mm/ 24mm Flat or Center Black Coated Steel Grid High Quality. Better: NRC 0. Commercial Electric. SIMPLESOFFIT – a pre-fabricated drywall soffit framing system. USG has a large assortment of metal ceiling tiles that builders and architects can use for finishing projects. -based Rose Displays, Ltd. Features factory applied gaskets for positive seal between panel and grid. ft. Black Ceiling Tiles. Knowledge Center. We have a range of ceiling tile options. Mars™ Acoustical Panels are durable, long-lasting panels manufactured using a unique process that maximizes sound and anti-sag performance, producing high (. Cleaning after installation is simple and involves removing the tile from the grid and using a general-purpose cleaner to wipe off any dust or dirt. Public Housing Authority (PHA) Continental Flooring has been servicing government agencies since 1979 and continues to be a top flooring and ceiling. XL staked-on end detail provides secure locked connection; easy to remove, reuse, and relocate. Pladur 4. The main. Experience and innovation combine to help you meet the most demanding engineering and installation challenges. SERPENTINA perforated clouds installed with acoustical infill panels provide greater sound absorption than a continuous ceiling. Perform Better, Carry Increased Ceiling Load, and Reduce Installation Time. Residential and commercial – any space where reverberation or reflected noise is an. 0mm Soft Galvanised Suspension RodStock Pack: 1000 | Sub Pack: 50Available Length: 3600mm. particulate-free, sealed ceiling system. Technical Specifications. Armstrong® Commercial Suspension Systems and Commercial Ceiling products have a 30-year limited systems warranty when installed together and used under normal conditions. £6. Hot-dipped galvanized coating inhibits red rusting better than other systems. Save time with full-scale 3D Revit Models from PROJECTWORKS - Learn more!. According to our latest study, the global Ceiling Grid System market size was valued at USD 2866. Exterior options available in 24 x 24 x 1-1/2" and 24 x 48 x 1-1/2" standard panel sizes. Enter your. Integrations. Hot-dipped galvanized coating inhibits red rust better than electrogalvanized or painted systems. Our journey began in 1961 with the supply of mineral fibre acoustic ceiling tiles and supporting ceiling grid. Cross Tee. All of our BarrierGrid suspension systems are ICC-ES listed for seismic applications, and our heavy-duty 1-3/8-inch wide-face ceiling suspension is fire-rated. Save time with full-scale 3D Revit Models from PROJECTWORKS - Learn more!. Allow at least 3" below the old ceiling, duct work, pipes, or wiring as clearance to maneuver a ceiling panel into the opening of the grid. View product What are the benefits of our ceiling grids? Durable – Rockfon Chicago Metallic ceiling grid is a trusted grid system that works with our ceiling products as a one. Ceiling Systems All DesignFlex White and Sustain® color ceiling panels are part of the Sustain portfolio and many have Total Acoustics® performance – just look for the Total Acoustics® and Sustain icons. Our commercial ceiling tiles come in a wide range of materials and appearances. The Rondo DUO ® Seismic Ceiling System has the options of perimeter fixing or plenum bracing. 4 CEILINGS - T-60 profiles single frame suspended. Choose the best ceiling for your project here. Not only does the Rondo Donn Exposed Two-Way Grid Ceiling System include the popular 24mm grid, it also offers a more slimline 15mm grid option. Ceilings & Walls for the Home. We also offer a range of specialty ceilings to suit any commercial. Model # 6362WH. Logix™ Integrated Ceiling System. Lay Out Ceiling. x 2 ft. Commercial Suspension Systems. We provide cost-effective and straightforward ceiling solutions for various clients, including general contractors and residential builders. of soffit per day before switching to SIMPLESOFFIT grid. ICC-ES recognizes Armstrong SEISMIC RX Suspension Systems as seismic code compliant solutions to meet ESR-1308. Contacts. Key Features & Performance. 6. The system provides a flexible way to control this leak path without the use of tapes. Save time with full-scale 3D Revit Models from PROJECTWORKS - Learn more!. (ASCE 7-05 13. Home; About. cross tees, nine 2 ft. Shop Ceiling Grid Shop Ceiling Grid. $409. My guess is the 'electrician' will say, "We've always done it this way before. MetalWorks Linear Visuals. 9/16" Dimensional Tee, houses most fixtures. Please contact us for sizes not available online. ) per carton. They are a suspended secondary ceiling that is hung below the main structural ceiling. Supports point loads up to 300 lbs. CEILING PANELS: GRID AND TRIM: Armstrong® Commercial Suspension Systems and Commercial Ceiling products have a 30-year limited systems warranty when installed together and used under normal conditions. The most cost-effective and commonly installed suspended ceiling grid system is the metal 15/16” width grid system. Qwel Designer Acoustic Tiles Flat Molded Acoustic Ceiling Tiles. PRELUDE XL for Exterior. Clip-in, hook-on, and lay-in systems have similar pricing but different framework, installation, and tile attachment methods. View line. Exposed tee grid systems for lay-in ceiling panels offer factory-painted supporting members that are exposed to view. Metal ceiling panels and tiles are a great choice for commercial ceiling tiles and are available in a range of shapes, sizes, and finishes, in standard and custom configurations. We take great pride in helping you improve construction efficiencies and job-site production while making sure your design intent is maintained. They can be cleaned using water and mild cleaner, and their bright white, high gloss surface provides a finished appearance without the need for painting. 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. Create Geometric Shapes in a Gymnasium. Product comparisons must be made within the same category (ceilings, installation systems, walls). Supatone™ Ceiling Tiles Heavy duty, poly-coated paper laminated tiles that suit exposed grid ceiling systems in commercial applications. You attach the ceiling tiles to the grid system using clips or hangers, and the grid is then hidden behind a trim or moulding. AIRASSURE ceiling tiles include a factory-applied gasket seal between the tile and the suspension grid. This commercial lighting troffer provides bright white 4,000K CCT light and is compatible with 0-Volt to 10-Volt dimmers. " How 'bout 314. You can count on us to do metal, wood, floating, soundproofing, and acoustical treatments. CLEANASSURE family of products –includes disinfectable panels, suspension systems, and trim. Learn how to install a commercial ceiling. Surface mount ceiling grids and tiles can be an appealing alternative to standard drywall ceilings. USDA Biobased Product - 95%. 3 LINEAR METAL CEILING SYSTEMS Paraline II ® Paraline Plus ® 29 METAL PANEL CEILING SYSTEMS Celebration Snap-In ™ Celebration Torsion Spring ™ 55 USG SHEETROCK® BRAND LAY-IN CEILING PANELS ZXLA™ 69 USG DRYWALL SUSPENSION SYSTEM Ceiling Grid Framing System For More Information echnical T. FIREGUARD. Most Armstrong ceilings and grid have a 30-year limited systems warranty when installed together and used under normal conditions. There is no risk of sagging – even in consistently ”wet” rooms like kitchens, restrooms and pool areas. Aluminum, stainless steel for severe environmental performance. Suitable for wind uplift applications with appropriate bracing. Tiles were popular in the 1980s, but are not used as often anymore. PRELUDE XL 15/16" Grid System. Exterior commercial ceilings from Armstrong Ceiling Solutions can withstand outdoor elements. 2 Mitered CornersFrameAll™ Drywall Grid Systems are engineered to get contractors on and off the job faster, reducing the construction schedule.