8. Screw strips (3/4” by 4” veneer core hardwood plywood) shall be located at the top and bottom behind the cabinet back and multiple doweled to the cabinet ends. 9. Hardboard cabinet backs shall be fully captured and dadoed into end panels and bottoms, with full perimeter gluing around the rear of the back. Where a removable back is indicated, it shall be an additional piece applied to cover an opening that is added to the fully captured back. (Backs are to meet the visual requirement of cabinet parts.) 10. Shelves shall be 3/4” thick in cabinets up to 36” wide, 1” thick in all cabinets over 36” wide. (Front edges of shelves are to meet the visual requirement of cabinet parts.) 11. Drawer box shall be four-sided (sub-front, sides and back), each panel made of nominal 1/2” thick, 9-ply Baltic Birch plywood and joined to adjacent panels by full glue and multiple dovetail joinery all four corners. 12.Drawer bottom (1/4” on drawers under 42” wide, 1/2” on larger drawers) shall be white faced hardboard (appearance to meet visual appearance of drawer box), dadoed into all four drawer box sides with full perimeter gluing on the underside. 13. Door and drawer heads shall be 3/4” thick plywood with edging as specified to resist warping. Reveals shall be 1/8” vertically and 1/4” horizontally between door and drawer heads and 7/16” on end panels. Face veneers shall be vertically grain matched. 14. Drawer slides shall be easily removable with a 100 lb. dynamic load rating and nylon roller bearings, powder coated surfaces, self-closing and with a hold-open feature. Slides shall be attached to the drawer box both from below and the side. File drawers shall be full extension, 150 lb. dynamic load rating mounted to the drawer sides. C. Full Height Sliding Door Cases: 1. Shall be designed and constructed for full enclosure to assure dust proofing of the interior. 2. Tops shall be 1” thick plywood, multiple doweled into end panels, secured with glue. 3. A double extruded aluminum track shall be attached to the case top for suspension system when sliding doors are called for. Doors shall be suspended from an adjustable hanger and glide on nylon roller wheels. An aluminum U-channel is located on the case bottom to guide the bottom of the doors. 4. Solid panel doors shall be 3/4” thick plywood with edging as specified. 5. Glazed doors shall have 2-3/4” x 7/8” thick framing, mortised, tenoned, and glued. Glass shall be set into door frame and secured with a plastic retainer. 6. Doors shall be removable without use of tools, and so designed to prevent by-passing. 7. Shelves shall be 3/4” thick in cabinets up to 36” wide, 1” thick in all cabinets over 36” wide. 8. To assure a rigid case, the center shelf is structurally joined to the end panels and glued. 9. Case bottoms shall be 3/4” thick plywood, multiple doweled and glued securely to end panels. 10. A 3” full width strip shall be doweled and mechanically fastened into the side panels of the cabinet at both top and bottom of the back and used for attaching the cabinet to wall. 11. Toe space, 2-1/4” deep x 4” high, shall be totally enclosed by a 3/4” x 4” plywood rail. 12.Backs in open and glazed door cases shall be 1/4” plywood; backs not exposed to view shall be 1/4” high-density fiberboard. 13. Case interior shall be flush. D. Full Height Swinging Door Cases: General construction features shall be the same as for sliding door cases except for the following: 1. Doors shall overlap opening on all four sides. 2. A 3” full width strip shall be doweled and mechanically fastened into the side panels of the cabinet at both top and bottom of the back and used for attaching cabinet to wall. 3. Hardwood door rails shall be mitered at corners. 4. Astragal applied to left hand door shall provide further dust proofing.
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