Threshold and lag assembly for a door

A threshold in combination with an overhead door comprising:

• a first threshold section, said first threshold section comprising an elongated rigid upright U-shaped member relative to said door, said U-shaped member comprising a base and a pair of parallel spaced upright sides, said sides each connected to said base, said sides and said base defining an open channel for selectively receiving said door therein, a pair of rigid flanges, each of said pair of flanges joined directly to different ones of said pair of upright sides, and each of said pair of flanges extending outwardly from said U-shaped member such that said flanges do not contact a substrate therebeneath, wherein said pair of flanges and said upright sides define an exterior cavity for urging wind and debris away from said threshold section, a second threshold section, said second threshold section joined to said first threshold section.

A threshold for an overhead door comprising:

• a threshold section, said threshold section comprising an elongated rigid U-shaped member with an upright opening, said U-shaped member comprising a base and a pair of parallel spaced upright sides, said sides each connected to said base, said sides and said base defining an open channel for selectively receiving said door therein, a pair of rigid flanges, each of said pair of flanges joined directly to different ones of said pair of upright sides, each of said pair of flanges extending outwardly from said U-shaped member such that said flanges do not contact a substrate therebeneath, wherein said pair of flanges and said upright sides define an exterior longitudinal cavity for urging wind and debris away from said threshold section, and a brace, said brace positioned on an exterior surface of one of said upright sides and contiguous to one of said pair of flanges.