The Pemko 158A Commercial Offset Door Saddle thresholds come in a 5-1/2" inch width, 1/2" height, and a 1/4" Offset. Pemko 158A Door Offset Saddle Thresholds come in 36", 48", 72", and 96" lengths and come in Mil Finished Aluminum.
Half Saddle thresholds are commonly used to meet with an irregular floor surface. These shapes are often used when a threshold is required to meet with tile or carpet on one side.
Hager 438S - NGP 653 - Zero102A
Symmetrical shapes designed to span a given area, usually under a door
Offset Saddle thresholds are supplied predrilled, with #10-24 Phillips, flat head machine screws of appropriate length
To use a saddle threshold in an offset condition, use an elevator