Abstract: The door threshold assembly has a threshold defining a depression and a first locking member. At least one fastener is positioned in the depression for attaching the threshold to a surface. A cover is dimensioned to cover the depression where the cover comprises a second locking member engageable with the first locking member in a snap-fit connection to secure the cover to the threshold. One of the first locking member and the second locking member may be resiliently deformable. The locking members may comprise a flange comprising a locking surface and a camming surface where the camming surfaces deform at least one of the first locking member and the second locking member.

Abstract: A threshold system and threshold insert for transitions through doorways. An insert for a threshold saddle to be used with a door includes an elongated member for providing a seal along a bottom edge of the door and to be received in a seat in the saddle. The insert defines a door engagement surface adapted to extend across both the seat and the change in elevation to engage the door to provide the seal. When installed for use, the door engagement surface, the saddle adjacent to the sides of the seat, or both provide an overall slope of at least or approximately 2 units horizontal to 1 unit vertical. A threshold system includes a saddle and the insert. The door or an appurtenant door shoe may have an angled surface to interface with the door engagement surface of the insert.