Division 8 Openings

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Division 8 Openings

• Metal Doors and Frames
• Wood and Composite Doors
• Entrances and Storefronts
• Windows
• Hardware
• Glazing

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Metal Doors

• Hollow metal doors are made with 20, 18, or 16
  gage face sheets in thicknesses of 1 3/8" and 1
  3/4".
•  Available with small vision lites, half glass,
  full glass, louvered, and flush.
•  Door swing left hand, right hand, LHR, RHR
•  Fire-rated doors certain door locations require
  a fire rating for the door and frame. C Label
  for 3/4-hour rating, B Label for 1 1/2 to 2
  -hour rating and A Label for 3-hour rating.

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Metal Doors Cont.

• Takeoff unit each, note
• type of metal
• metal gauge
• door core material
• fire rating
• finish

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Door Swing
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Door Frames

• Steel frames are the most common type door
  frames and are available in 14, 16, and 18 gage.
• Frames are made in various widths (profile) to
  suit the thicknesses of the walls to which they
  are mounted (4 3/4", 8 3/4",..).
• Unit each, note gauge, width, height and width,
  single or double

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Wood and Composite Doors

• Vary considerably in price, The primary
  determinant is veneer material.
• unit each, note
• size
• hollow or solid core
• fire rating
• flush or raised panel
• finish

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Windows

• Stock Windows
• They are more readily available and easily
  priced per unit. Count the number of units and
  list the accessories.
• Custom-made
• Exact figures can be obtained only from the
  manufacturer.

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Window Proposals

• When checking proposals for the windows on a
  project, make a note of
• whether the glass or other glazing is included
• where delivery will be made
• whether installation is done by the supplier
• whether all the accessories are included
  (mullions, screens, sills, etc.)
•  The job may be bid by the SF, or LF of frame, or
  a lump sum.

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Window Accessories

• Glass - unit is SF, note thickness and type
• Glazing - setting of whatever material is
  installed in the frames (glass, metal, plastic
  laminates, stone). Cost depends on the total
  amount involved, size and quality of the material
  to be glazed, and the type of glazing method.
• Screens - painted or galvanized steel, plastic
  coated fiberglass, aluminum, or bronze. Cost
  depends on type and size.

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Window Accessories Cont.

• Hardware - locking devices, handles, and hinges
  made of stainless steel, zinc-plated steel,
  aluminum or bronze. Cost is per unit.
• Weatherstripping - vinyl, neoprene, metal
  flanges and clips, and adhesive-backed foam.
  Takeoff in LF.
• Mullions - vertical bars that connect adjoining
  sections of frames. Takeoff in LF with a note as
  to thickness, finish, and color.

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Window Accessories Cont.

• Sills - the bottom member of the frame made of
  stone, brick, precast concrete, tile, metal, or
  wood. Takeoff in LF with a note on the type,
  width and thickness.
• Flashing- may be required at the head and sill
  of the frame. Check to see who buys the flashing
  and who is supposed to install it.

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Hardware

• Hardware costs add considerably to the cost of a
  door.
• Rough hardware comprises the bolts, screws,
  nails, small anchors required for installation of
  the doors and frames.
•  Finish hardware (hinges, door closing devices,
  locks and latches, locking bolts, kickplates) is
  scheduled in the specifications or on the
  drawings. Review the door schedule in conjunction
  with the specifications.

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Types of Glass

• Plate glass- regular, gray, low E-glass, and
  tempered.
• Wire glass- where fire-retardant and safety
  characteristics are required.
• Patterned glass- used for decoration or
  providing a degree of privacy.
• Insulating glass two sheets of glass to
  increase sound and heat insulation.

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GLASS R VALUES

• Type of Glass R Value
• Single Pane regular glass 0.85
• Clear Insulated Glass 7/8 inch overall
  thickness 2.08
• Hard Coat Low-E insulated glass 2.45
• Hard Coat Low-E insulated glass with argon 2.75
• Soft Coat Low-E insulated Glass 3.50
• Soft Coat Low-E insulated glass with argon 4.35
• Windows manufactured with low-E coatings
  typically cost about 1015 more than regular
  windows, but they reduce energy loss by as much
  as 3050.

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