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Similarly, interior doors also come in many styles
(fig. 6-73). The two principal types are flush and
panel doors. Interior panel doors (colonial and
five-cross type) are manufactured to be similar
to the exterior doors, Novelty doors, such as
the folding door unit, are commonly used for closets
because they provide ventilation. The interior
flush door is usually made up with a hollow
core of light framework covered with thin plywood
or hardboard. Most standard interior doors
are 1 3/8 in. thick. Hinged doors should open or swing in the direction of natural entry, against a blank wall, and should not be obstructed by other swinging doors. Doors should NEVER be hinged to swing into a hallway.Figure 6-74 shows the principal parts of a finish doorframe. On an outside door, the frame
Figure 6-74.-Principal parts of a finish doorframe.
Figure 6-75.-Exterior door and frame. Exterior door and combination door (screen and storm) cross sections: A. Head jamb; B. Side jamb; C. Sill. includes the side and head casings. On an inside door. the frame consists only of the side and head jambs; the casings are considered part of the inside-wall covering. Figure 6-75 shows section drawings of exterior doorframe details. |
 
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