Inswing Door Threshold with Composite Base (3' (36"), Aluminum Mill), 5 5/8" Full Extruded Substrate with Adjustable Cap. The Oak Cap- Width is 1 5/16". Adjustment on this Cap- Lowest- 1 3/8" to Highest- 1 9/16" Total width of the Inswing Threshold is 5 5/8" Anodized Aluminum The Length is Untrimmed to allow the Customer to cut the Correct Size