
Do Not Risk Non-Certified Door Thresholds. GapFix thresholds are UL certified and approved for rated openings. When compliance matters, use hardware that is tested and documented.
The GapFix™ 7" x 1/2" x 120" Commercial Door Threshold in Mill Finish Aluminum is engineered for commercial openings requiring ADA accessibility, fire door compliance, and long-term durability.
With a 7" profile width, 1/2" ADA-compliant height, heavy-duty .120" wall thickness, and a 1000 lb load rating, this threshold is built for high-traffic commercial environments.
Made in USA and manufactured per order (7 Day Production Time).
Choose the configuration that best fits your installation requirements:
Pre-punched thresholds are ideal for standard installations. Non-punched thresholds are often specified when precise anchor spacing or concealed fastening layouts are required.
Many thresholds sold online are not certified for commercial ADA or fire-rated openings. The threshold directly affects door clearance, inspection approval, and long-term performance.
GapFix™ thresholds are engineered for commercial use and inspection-ready applications.
Approved for use with Hollow Metal fire doors rated up to 3 hours and Wood fire doors rated up to 90 minutes.
For concrete slab installations, appropriate masonry anchors should be used.
📘 View Step-by-Step Commercial Threshold Installation Article
📄 Download Threshold Installation PDF
GapFix™ — Fix the Opening, Not Just the Hardware.

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