Product Description: Engineered for long-term durability and optimal performance, this 4-11/16″ Heavy-Duty Aluminum Outswing Door Threshold is built for residential and commercial use. Made from corrosion-resistant aluminum with an integrated weather seal, it provides reliable protection against air, water, and debris intrusion. The threshold is supported by a composite wood sub-base that enhances strength and thermal insulation. The base measures 2-1/2″ (composite wood) in Lenght and features a 5-degree slope, tapering from 1″ high on the left side down to 1/4″ on the right, ensuring smooth drainage and proper door clearance. Designed for compatibility with most standard outswing doors, this threshold is easy to install and ideal for applications requiring robust weatherproofing and long-term structural stability.