____ Is a Thin, Tough Plastic Material Used to Cover

Q20: The bottom horizontal member of the window

Q21: Bifold doors are made in wider widths

Q22: The sash is a frame in a

Q23: _ windows have a curved top or

Q24: Skylights provide both light and ventilation.

Q25: The _ lockset has knobs on both

Q26: Sidelights of a door need to be

Q27: _ doors have a smooth surface, are

Q28: When windows are installed or manufactured side

Q30: The horizontal frame members of a panel