thresholds
Strips fastened to the floor beneath a door, usually required to cover the joint when two types of floor material meet; may provide weather protection on external doors; for the lower sides and bottom of doorways, use "doorsills.".
Strips fastened to the floor beneath a door, usually required to cover the joint when two types of floor material meet; may provide weather protection on external doors; for the lower sides and bottom of doorways, use "doorsills.".