 | Astragal/Mullions Attached to one of a pair of doors to keep the other from swinging through the opening. Also used for decorative purposes. The strip which is applied over window jamb edges in a multiple opening window, sometimes called a panel strip. |
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Back Bands A rabbeted moulding used to surround the outside edge of casing. |  |
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 | Base Cap A decorative member installed flush against wall & the top of an S4S baseboard. Also a versatile panel moulding. |
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Base Mouldings Applied where floor & walls meet, forming a visual foundation. Protects walls from kicks, bumps, furniture, etc. Base may be referred to as one, two or three member. Base shoe & base cap are used to conceal uneven floor & wall junctions. |  |
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 | Beds Concave profile, used at corners, particularly as a ceiling cornice. Small coves may be used as an inside corner. |
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Brick Moulding Used as an exterior door & window casing. A thick moulding providing a surface for brick or other siding to butt against. |  |
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 | Casings | |
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Chair Rail Interior moulding about 1/3 up from the floor, paralleing base moulding and encircling the room. Originally used to prevent chairs from marring walls, used today as a key decorative detail in traditional & colonial design. |  |
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 | Corner Guards Outside (OS) corner guard is used to protect corners or to cover a ragged edge where wall covering and painted surfaces meet at outside corner. |
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Coves Concave profile, used at corners, particularly as a ceiling cornice. Small coves may be used as an inside corner. |  |
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 | Crowns Used where walls & ceiling meet and to cover large angles. Always sprung. | |
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Drip Caps Applied over exterior window & door frames and keeps water from seeping under the siding. Also directs water away from window glass. |  |
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 | Half Round May be used as a screen moulding or bead shelf edge or panel moulding. | |
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Lattice
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 | Panel Moulding Originally used to trim out raised panel wall construction, now often used to frame attractive wall coverings for a panled effect. |
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Quarter Round May be used as a base shoe, inside corner moulding or to cover any 90º recessed juncture. |  |
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 | Stops In door trim, stop is nailed to the face of the door frame to prevent the door from swinging through. As window trim, stop holds the bottom sash of a double-hung window in place. Also used as an apron under window stools. |
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Window Stool A moulded interior trim member serving as a sash or window-frame sill cap. |  |