Threshold trench drain

A threshold drain for connecting to a drain system and collecting an incoming flow of water from a predetermined direction across a threshold at an installation site, the threshold drain comprising:

• a catch pan having pan sidewalls, pan end walls, a pan bottom wall and a pan open top, the catch pan having a width defined between the pan sidewalls, a length defined between the pan end walls and a depth defined between the pan bottom wall and the pan open top of not more than two inches, the pan bottom wall including portions defining a pan outlet;
• a flange pipe coupled to the pan outlet and extending away from the catch pan, the flange pipe defining a central axis and being configured to couple the threshold drain to the drain system;
• and
• a grate received within the catch pan and including transverse webs and longitudinal webs, the transverse webs extending parallel to one another along the width of the catch pan and being spaced above the pan bottom wall, the longitudinal webs extending parallel to one another along the length of the catch pan and being supported by the transverse webs above the pan bottom wall in a fixed orientation, the longitudinal webs being planar and having an upper terminal end disposed toward the pan open top and a lower terminal end disposed toward the pan bottom wall, the fixed orientation of the longitudinal webs being an inclined orientation with the upper terminal ends of the longitudinal webs located toward one of the pan side walls and the lower terminal ends of the longitudinal webs located toward the other of the pan side walls, whereby the inclined orientation orients the upper terminal ends is in a direction toward the incoming flow of water from the predetermined direction.