Home > Products > Doors > Door Parts > Thresholds > Adjustable Threshold Randall Adjustable Threshold For gaps 5/8″ to 1-1/8″ Measures 3-1/2″ wide Mill finish Available in two lengths Model number V-9 Length Choose an option3'6'Clear Adjustable Threshold quantity Add to cart Add to basket for Quote Purchase online at our TotalWood Store * Please select length and quantity to add to basket for quote.