ANSI/AWI 0641-2019 - Architectural Wood Casework Standard
5.3.1 Exterior Surfaces
a) Defined as all exterior surfaces exposed to view, including:
• All surfaces visible when doors and drawers are closed, including knee spaces.
• Underside of cabinet bottoms over 1067 mm [42”] above the finished floor, including cabinet bottoms behind light valances and the bottom edge of light valances.
• Cabinet tops under 2032 mm [80”] above the finished floor, or if 2032 mm [80”] and over and visible from an upper building level or floor.
• Front edges of stretchers, ends, divisions, tops, and bottoms.
• Sloping tops of cabinets that are visible.
5.3.2 Exposed interior surfaces
a) Defined as all interior surfaces exposed to view in open casework or behind transparent doors, including:
• Shelves, including edgebanding.
• Divisions and partitions (front edge is an exposed surface).
• Interior face of ends (sides), backs, and bottoms (including pull outs). Also included are the interior surfaces of cabinet top members 914 mm [36”] or more above the finished floor.
• Interior face of door and applied drawer fronts.
5.3.3 Semi-exposed surfaces
a) Defined as those interior surfaces only exposed to view when doors or drawers are opened, including:
• Tops and bottoms of shelves, including front edgebanding (front edge is an exposed surface).
• Divisions and partitions (front edge is an exposed surface).
• Interior face of ends (sides), backs, and bottoms (including a bank of drawers). Also included are the interior surfaces of cabinet top members 914 mm [36”] or more above the finished floor.
• Drawer sides, sub fronts, backs, and bottoms.
• The underside of cabinet bottoms between 610 mm [24”] and 1067 mm [42”] above the finished floor.
• Security panels or drawer stretchers.
5.3.4 Concealed surfaces
a) Defined as those exterior or interior surfaces that are covered or not normally exposed to view, including:
• Toe spaces, unless otherwise specified.
• Sleepers, stretchers, and solid sub tops.
• The underside of cabinet bottoms less than 610 mm [24”] above the finished floor.
• The flat tops of cabinets 2032 mm [80”] or more above the finished floor, except if visible from an upper floor or building level.
• The three non-visible edges of adjustable shelves.
• The underside of knee spaces, aprons and drawer boxes that are less than 914 mm [36”] above the finished floor.
• The faces of cabinet ends of adjoining units that butt together.