threshold: A strip of wood or metal with beveled edges uses over the finish floor and the sill of exterior doors.

topography: Usually refers to site characteristics such as contour of the land, trees, or other natural features.

transom: A window placed above a door or permanent window which is hinged for ventilation.

tread: The horizontal board in a stairway on which the foot is placed.

trim: The finish materials in a building, such as moldings, applied around openings (window trim, door trim) or at the flor and ceiling of rooms (baseboard, cornice).

truss: Structural members arranged and fastened in triangular units to form a ridge framework for support of loads over a long span.

 

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