Architectural Cabinets

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400 118 architectural cabinets section 400 © 2003 awi/awmac - 8th edition quality standards section 400 selection and specification checklist because most ...

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Architectural Cabinets pdf




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Architectural Cabinets - page 1
ARCHITECTURAL CABINETS SECTION 400
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Architectural Cabinets - page 2
Architectural Cabinets Section 400 Architectural Cabinets Section 400 Section 400 Selection and Specification Checklist Because most architecture, specification, and design firms have electronic master specifications in place, the AWI and AWMAC offer this quick checklist. A review of these items may help the design and specification team issue a complete and accurate contract document and avoid missing things vital to the successful completion of the project. The checklists are not considered a part of the Quality Standards for the purposes of compliance. Part 1. GENERAL 1.1. REFERENCES A. AWI/AWMAC Quality Standards Illustrated (QSI), current edition 1.2 SUBMITTALS A. Shop drawings: • Submit two copies; one of which will be returned with reviewed notations prior to commencement of work under this section. • Indicate plans and elevations, materials, surface grain directions, profiles, assembly methods, joint details, fastening methods, accessories, hardware, compliance with specified fire-retardant treatments, preservative treatments, and schedule of finishes. B. Finish samples: • When appropriate, submit one or more samples of veneer-on-substrate, 200 x 250 mm [8 x 10"] illustrating expected range of component finish color and/or grain. • When appropriate, submit one or more samples of solid lumber, 300 square centimeters [50 square inches] illustrating expected range of component finish color and/or grain. • The sample shall bear identification of the project, architect or designer, general contractor, woodwork manufacturer, items to which the finish applies and the system utilized to attain the finish. 1.3. QUALITY ASSURANCE A. Perform work in accordance with [Premium] [Custom] [Economy] Grade quality B. Work in this section shall comply with the specified Grade(s) of Work and Section (s) of the current edition of the AWI/AWMAC Quality Standards Illustrated. 1.4. QUALIFICATIONS A. Contractors and their personnel engaged in the work shall be able to demonstrate successful experience with work of comparable extent, complexity and quality to that shown and specified. B. Manufacturers who are members in good standing of the Architectural Woodwork Institute (AWI) or the Architectural Woodwork Manufacturers Association of Canada (AWMAC) and are familiar with this Standard. 1.5. DELIVERY, STORAGE AND HANDLING A. Protect work from moisture damage according to QSI, Section 1700, Installation. 400 Part 2. PRODUCTS 2.1. MANUFACTURERS A. Manufacturers who are members in good standing of the Architectural Woodwork Institute (AWI) or the Architectural Woodwork Manufacturers Association of Canada (AWMAC) and are familiar with this Standard. 2.2. LUMBER A. Softwood Lumber: If a particular species is desired, specify here. • For exposed surfaces: • For semi-exposed surfaces: • For concealed surfaces: B. Hardwood Lumber: If a particular species is desired, specify here. • For exposed surfaces: • For semi-exposed surfaces: • For concealed surfaces: 118 © 2003 AWI/AWMAC - 8th Edition Quality Standards
Architectural Cabinets - page 3
Architectural Cabinets Section 400 2.3. PANEL PRODUCTS A. Softwood plywood: Not usually used for in fine architectural woodwork, but specify here if part of the design æsthetic. • For exposed surfaces: • For semi-exposed surfaces: • For concealed surfaces: B. Hardwood plywood: Made with medium density particleboard or fiberboard (MDF) core for interior use or moisture- resistant core stock for exterior use; specify face veneer species here. • For exposed surfaces: • For semi-exposed surfaces: • For concealed surfaces: C. High-pressure decorative laminate (HPDL), specify by brand name and design name/part number. • For exposed surfaces: • For semi-exposed surfaces: D. Core material for veneered or laminated components, if other than QSI standards: • For exposed surfaces: • For semi-exposed surfaces: E. Solid surface materials, Thermoplastic sheets, Acrylic or methacrylate sheets, Solid phenolic core, or any other special panel product, specify by brand name and design name/product number. 2.4. WOOD TREATMENT A. List the specific local requirement for fire retardant treatment, if any. B. List the specific chemical and process for preservative treatment, if any. 2.5. GLAZING, HARDWARE, AND ACCESSORIES A. If glass is to be supplied by woodworker, the materials and requirements should be listed here. • Wood stops shall conform to the QSI for the Grade of Work specified. • Finish coats on glazed exterior work, if any, shall be allowed to flow on to the glass. B. Fasteners: Size and type to suit application. Weather resistant if exterior. The QSI does not set standards for fasteners. C. Hardware, if not specified by brand name and part number, shall be mill option to meet QSI minimums. 2.6. FABRICATION A. Fabricate to [Premium] [Custom] [Economy] Quality Standards. B. Shop prepare and identify components of assemblies for matching during site assembly. C. When necessary to cut and fit on site, provide materials with ample allowance for cutting. Provide trim for scribing and site cutting. D. Cabinet style(s): [Flush overlay] [Reveal overlay] [Reveal overlay on face frame] [Flush inset] [Flush inset with face frame]; specify which elevations get which style. E. Underside wall cabinet finish style commensurate with the cabinet style specified above: [Type A] [Type B] [Type C]. F. Cabinet shelf thickness and/or construction to accommodate exceptional client requirements such as long spans or anticipated heavy loading here. G. Grain direction and matching criteria if other than AWI/AWMAC Standards here, otherwise accept the matching for the Grade of Work specified above. H. Stile and rail door panel retention profile and/or hardware if other than AWI/AWMAC Standards. I. Drawer body requirements here if other than AWI/AWMAC Standards. J. Adjustable shelf techniques here if other than AWI/AWMAC Standards. K. Wall cabinet hanging techniques here if other than AWI/AWMAC Standards. © 2003 AWI/AWMAC - 8th Edition Quality Standards 400 119
Architectural Cabinets - page 4
Architectural Cabinets Section 400 2.7. FINISHING MATERIALS AND APPEARANCE A. List the name of the finish system (topcoats) to be used from Section 1500 B. List the sheen desired: [Flat] [Satin] [Semi-gloss] [Gloss]. D. List the special or extra steps and/or products to be used, such as bleach, distressing, filler, glaze, shading, stain, toner or washcoats. 2.8. FINISHING REQUIREMENTS A. Sand work smooth and set exposed nails [and screws]. • For opaque finishes, apply wood filler in exposed nail [and screw] indentations and sand smooth. • For transparent finishes, use wax or burn-in filler which blends with surrounding color and sheen, often after stain and before final top coat. B. When combining wood and laminates or other specialty products, careful consideration must be given to finishing specifications. Responsibility for finish wood parts should be clarified by the design professional here. C. Finish work in the factory in accordance with Section 1500. 400 D. [Prime paint] [Seal] surfaces in contact with cementitious materials. Part 3. EXECUTION 3.1. EXAMINATION A. Verify adequacy of backing and support framing. B. Verify mechanical, electrical, and building items affecting work of this section are in place and ready to receive this work. 3.2. INSTALLATION A. Install work in accordance with [Premium] [Custom] [Economy] Grade, Section 1700, QSI. B. Set and secure materials and components in place, plumb and level. 3.3. ADJUSTING A. Adjust work under provisions of Section [ 3.4. CLEANING A. Clean work under provisions of Section [ ] of the contract documents. ] of the contract documents. B. Adjust moving or operating parts to function smoothly and correctly. 120 © 2003 AWI/AWMAC - 8th Edition Quality Standards
Architectural Cabinets - page 5
Architectural Cabinets Section 400 400 This page is temporarily blank © 2003 AWI/AWMAC - 8th Edition Quality Standards 121
Architectural Cabinets - page 6
Architectural Cabinets Section 400 General Criteria 400-G-1 Scope Includes: This section covers casework, cabinets, and fixtures, custom manufactured in units or modules to a design for a particular function or project. The terms cabinet and casework are used, often interchangeably, and refer to kitchen and bath cabinets, reception and registration desks, bank fixtures, courtroom fittings, store and museum display cabinets, etc. The three sections will deal with: 400A. Wood Cabinets (Transparent & Opaque Finish) 400 400B. Laminate Clad Cabinets 400C. Countertops Excludes: Modular Cabinets (Covered in Section 1600) Note: Structural lumber (S-DRY) is generally not a suitable casework material. Rib materials, base frames and kicks, etc. should be made from kiln dried hardwoods or softwoods with a moisture content of 5 to 10%, or a suitable panel product. 400-G-3 Identification of Parts A. Exposed Parts - Surfaces visible when: 1. Drawer fronts and doors are closed; 2. Cabinets and shelving are open-type or behind clear glass doors; 3. Bottoms of cabinets are seen 1219 mm [48"] or more above finished floor; 4. Tops of cabinets are seen below 1829 mm [72"] above finished floor, or are visible from an upper floor or staircase after installation; 5. Portions of cabinets are visible after fixed appliances are installed; 6. Front edges of cabinet body members are visible or seen through a gap of greater than 3.2 mm [1/8"] with doors and drawers closed (sim. Tests 400A-C-1 & 400B-C-1). Note: for the purpose of factory finishing, both sides of cabinet doors shall be considered Exposed. B. Semi-Exposed Parts - Surfaces visible when: 1. Drawers/doors are in the open position; 2. Bottoms of cabinets are between 762 mm [30"] and up to 1219 mm [48"] above finish floor; 3. All front edges of shelving behind doors. C. Concealed Surfaces - Surfaces are concealed when: 1. Surfaces are not visible after installation; 2. Bottoms of cabinets are less than 762 mm [30"] above finish floor; 3. Tops of cabinets are 1829 mm [72"] or more above finished floor and are not visible from an upper level; 4. Stretchers, blocking and/or components are concealed by drawers. 5. corners are created by tall, wall, or base cabinets, and shall be non-accessible. 400-G-2 Specification Requirements GRADE MUST BE SPECIFIED These Standards provide for three Grades: Premium, Custom, and Economy. Premium Grade The Grade specified when the highest degree of control over the quality of workmanship, materials, installation, and exe- cution of the design intent is required. Usually reserved for special projects, or feature areas within a project. Custom Grade The Grade specified for most conventional architectural wood- work. This Grade provides a well defined degree of control over the quality of workmanship, materials, and installation of a project. The vast majority of all work produced is Custom Grade. Economy Grade The Grade that defines the minimum expectation of quality, workmanship, materials, and installation within the scope of these Standards. Prevailing Grade When the Quality Standards are referenced as a part of the contract documents and no Grade is specified, Custom Grade standards shall prevail. In the absence of specifications, material shall be mill option lumber or veneers suitable for opaque finish. Seismic Requirements Must be Specified - In the absence of specifications, cabinets will not be fabricated to meet any seismic code requirements prevalent in some areas of the world. 122 Caution Special consideration should be given to raw wood parts on high-pressure decorative laminate-clad (HPDL) cabinets such as wood pulls, wood trims, applied mouldings, banded doors, drawer bodies and wood cabinet interiors. Specifications regard- ing the responsibility for finishing (if any) should be clarified by the design professional. © 2003 AWI/AWMAC - 8th Edition Quality Standards
Architectural Cabinets - page 7
Architectural Cabinets Section 400 Top and bottom fillers and corner panels are required in Premium Grade, but optional for Custom Grade work. Contrasting colors may occur (e.g. at door/drawer gaps) unless Exposed and Semi- Exposed finishes are carefully specified by the design professional. 400 Ends and backs not visible after installation are Concealed Semi-exposed Backs of applied drawer faces are Semi-exposed Inside cabinet backs are Semi-exposed in closed cabinets OR Inside faces of doors: Standards require like material and thickness on both sides.* Exposed See 400A-S-3 or 400B-S-3 for Grades Treat ends and toe kicks as Exposed surfaces when visible after installation * NOTE: Requirements for Grade “AA” or “A” interiors must be clearly specified by the owner or design professional. HPVA “B” Grade veneer of the same species and cut is permitted for use on the interior face of flush cabinet doors as a “balanced” construction, but both sides must be finished in the same manner, see Sec. 1500. For Custom Grade HPDL-clad doors, the selection of the “inside” color is at the option of the woodwork manufacturer in the absence of specifications. Identification of Parts - Figure 400-01 © 2003 AWI/AWMAC - 8th Edition Quality Standards 123
Architectural Cabinets - page 8
Architectural Cabinets Section 400 400-G-4 Plant Assembly All cabinets shall be plant assembled. Where design, deliv- ery, or site conditions require, cabinets may be assembled in component units with provisions made for field connecting. Toe kicks and bases may be shipped loose depending on the engineering of the cabinet construction and/or site and instal- lation conditions. Shop drawings shall indicate unitizing of cabinet construction so as to be subject for review by ownersʼ representatives. 400-G-7 Styles of Cabinets, Scribes, and Fillers When type of cabinet is not specified or clearly shown, type will be woodworkerʼs option. 1 2 400-G-5 Work Included • Woodworker shall furnish and install cabinet hardware. 400 • If not specified, hardware furnished shall be standard with the woodworker. • If woodworker is to furnish other than woodworkerʼs standard hardware, it must be itemized, and sources identified by the specifications. • The woodworker shall install special hardware furnished by others, providing : 1. The specifications require it. 2. The hardware is delivered to the woodworker prior to starting assembly of the cabinets. 3 1 4 A. Flush Overlay Key Elevation - Figure 400-02 Doors (1, 2) and drawer faces (3) cover (or nearly cover) the body members (4) of the cabinet, with spaces left between adjacent surfaces sufficient for operating clearance. Flush overlay construction offers a very clean, contemporary look because only the doors and drawer fronts are visible in elevation. When specified, grain matching between doors and drawer fronts can be achieved by having all pieces cut from the same panel. This style is increasingly popular and lends itself well to the use of plastic laminate for exposed surfaces. Conventional as well as concealed hinges are available for a variety of door thicknesses. 400-G-6 Work Not Included Unless otherwise specified, the woodworker shall not pro- vide: • finishing or backpriming; • for any electrical, telephone, mechanical or plumbing equipment; • common blocking (within a wall or ceiling) for the support of cabinets; • exposed bases other than decorative laminate or wood; • or, dust panels. Finishing Recommendation This section does not cover finishing. However, site conditions for finishing are rarely conducive to good results. Poor lighting, dust-laden air, and techniques available are limiting factors. Depending upon local practice, in many areas woodworkers will factory finish, yielding better results than can be achieved from field finishing. See Section 1500 for details. Note: When incorporating lumber and veneer with HPDL cabinets shown in Section 400B, careful consideration must be given to the finishing requirements and responsibilities. Wood trims, wood drawers, wood pulls, etc. require finishing. The finishing responsibilities must be addressed. Specifications regarding the responsibility for finishing (if any) shall be clarified by the design professional. 124 3 4 1 2 Plan Section - Flush Overlay - Figure 400-03 © 2003 AWI/AWMAC - 8th Edition Quality Standards
Architectural Cabinets - page 9
Architectural Cabinets Section 400 400-G-7 (continued) B. Reveal Overlay Doors (1, 2) and drawer faces (3) partially cover the body members or face frames (4) of the cabinet, with spaces between face surfaces sufficient for operating clearance. In this style, the separation between doors and drawer fronts is accented by the reveal. The style is equally suited to either wood or plastic laminate construction. Although the detail shown here incorporates a reveal at all horizontal and vertical joints, this can be varied by the designer. It should be noted that a reveal over 12.7 mm [ 1 / 2 "] may, at the woodworker's option, require the addition of a face frame. The addition of a face frame will change the hinge requirements. With or with- out a face frame, this style allows the use of conventional or concealed hinges. D. Flush Inset Doors (1, 2) and drawer faces (3) are inset within members (4) of the cabinet. Gaps between the case and the doors or drawers are often dictated by the operating clearances of the fittings. With this style of construction, all door and drawer faces are flush with the face of the cabinet. This style is highly func- tional and allows the use of different thicknesses of door and drawer fronts. Conventional as well as concealed hinges are available for a variety of door thicknesses. The choice of case and door/ drawer material influence the choice of hinges. Conventional butt hinges should be avoided when hinge screws would be attached to the edge-grain of panel products. This is generally an expensive style due to the increased care necessary in the fitting and aligning of the doors and draw- ers. The design features of this casework style are the same as conventional flush with face frame except that the face frame has been eliminated. This style does not lend itself to the eco- nomical use of plastic laminate covering finishes. 400 3 4 1 2 3 4 Plan Section - Reveal Overlay - Figure 400-04 C. Reveal Overlay on Face Frame Doors (1, 2) and drawer faces (3) are set over face frames or face members (4) on the cabinet. Finished end and scribe details vary with the manufacturer and the QSI Grade specified for the project by the design professional. 1 2 Plan Section - Flush Inset - Figure 400-06 3 4 1 2 Plan Section - Reveal Overlay (Frame) - Figure 400-05 © 2003 AWI/AWMAC - 8th Edition Quality Standards 125
Architectural Cabinets - page 10
Architectural Cabinets Section 400 400-G-7 (continued) E. Flush Inset with Face Frame Doors (1, 2) and drawer faces (3) are inset next to face frames or face members (4) on the cabinet. Finished end and scribe details vary with the manufacturer and the QSI Grade specified for the project by the design professional. Gaps between the case and the doors or drawers are often dictated by the operat- ing clearances of the fittings. With this style of construction, all door and drawer faces are flush with the face of the cabinet. This style is highly func- tional and allows the use of different thicknesses of door and drawer fronts. Conventional as well as concealed hinges are available for a variety of door thicknesses. The choice of case and door/ drawer material influence the choice of hinges. Conventional butt hinges should be avoided when hinge screws would be attached to the edge-grain of panel products. This is generally the most expensive of the four styles shown in this publication due to the increased care necessary in the fitting and aligning of the doors and drawers, in addition to the cost of providing the face frame. This style does not lend itself to the economical use of plastic laminate covering. Scribes, and Fillers Small extensions or elements added to the bottoms, sides, or tops of cabinets where they meet the walls or other cabinets are permitted in all cabinet styles as follows: • Minimum dimension exposed - 19 mm [ 3 / 4 "] all grades • Maximum dimension exposed, Premium Grade - 38 mm [1- 1 / 2 "]. except when 38 mm [3"] is needed at a 90° corner to clear hardware. • Maximum dimension exposed, Custom and Economy Grades - 76 mm [3"] 400 Filler or Scribe at wall and between cabinets 3 4 1 2 Plan Section - Flush Inset (Frame) - Figure 400-07 Fillers - Figure 400-08 126 © 2003 AWI/AWMAC - 8th Edition Quality Standards
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