08 10 00 Doors and Frames
• Most metal doors and frames look alike, but there may be significant differences among them. When estimating these items be sure to choose the line item that most closely compares to the specification or door schedule requirements regarding:
• type of metal
• metal gauge
• door core material
• fire rating
• finish
• Wood and plastic doors vary considerably in price. The primary determinant is the veneer material. Lauan, birch, and oak are the most common veneers. Other variables include the following:
• hollow or solid core
• fire rating
• flush or raised panel
• finish
08 30 00 Specialty Doors and Frames
• There are many varieties of special doors, and they are usually priced per each. Add frames, hardware, or operators required for a complete installation.
08 40 00 Entrances, Storefronts, and Curtain Walls
• Glazed curtain walls consist of the metal tube framing and the glazing material. The cost data in this subdivision is presented for the metal tube framing alone or the composite wall. If your estimate requires a detailed takeoff of the framing, be sure to add the glazing cost.
08 50 00 Windows
• Most metal windows are delivered preglazed. However, some metal windows are priced without glass. Refer to 08 80 00 Glazing for glass pricing. The grade C indicates commercial grade windows, usually ASTM C-35.
• All wood windows are priced preglazed. The two glazing options priced are single pane float glass and insulating glass 1/2″ thick. Add the cost of screens and grills if required.
08 70 00 Hardware
• Hardware costs add considerably to the cost of a door. The most efficient method to determine the hardware requirements for a project is to review the door schedule.
• Door hinges are priced by the pair, with most doors requiring 1-1/2 pairs per door. The hinge prices do not include installation labor because it is included in door installation. Hinges are classified according to the frequency of use.
08 80 00 Glazing
• Different openings require different types of glass. The three most common types are:
• float
• tempered
• insulating
• Most exterior windows are glazed with insulating glass. Entrance doors and window walls, where the glass is less than 18″ from the floor, are generally glazed with tempered glass. Interior windows and some residential windows are glazed with float glass.
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