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Commercial Door 30 in. Length Saddle Threshold Sill, 8 in. Wide x 1/2 in. Height, With Pre-Drilled Holes, Mill Finish

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.

GapFix™ ADA & Fire-Rated Commercial Door Threshold - 8" x 1/2" x 30" Mill Finish Aluminum, UL Listed, ANSI/BHMA Certified, Made in USA (7 Day Production Time)

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Item Return Policy: Special Order; Manufactured With Lead Time, Therefore Not Returnable
Choose your options:
Pre-Punched Holes:
Product Code: GFIX-812-30
7 Day Production Time

Orders Over $200 Qualify for FREE SHIPPING!

GapFix™ ADA & Fire-Rated Commercial Door Threshold - 8" x 1/2" x 30", Mill Finish Aluminum, UL Listed, ANSI/BHMA Certified, Made in USA (7 Day Production Time)

Barrier-Free 1/2" Saddle Threshold for Commercial & Fire-Rated Openings

The GapFix™ 8" x 1/2" x 30" Commercial Door Threshold in Mill Finish Aluminum is engineered for commercial openings requiring ADA accessibility, fire door compliance, and long-term durability.

With a 8" 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).


Hole Configuration Options

Choose the configuration that best fits your installation requirements:

  • Pre-Punched Holes: Evenly spaced factory-punched mounting holes for fast, consistent installation.
  • No Pre-Punched Holes: Clean profile for field drilling, custom anchor placement, or architectural preference.

Pre-punched thresholds are ideal for standard installations. Non-punched thresholds are often specified when precise anchor spacing or concealed fastening layouts are required.


⚠ Built for Compliance - Not Commodity Imports

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.


Certifications & Compliance

  • ADA Compliant: Meets ADA Standards for Accessible Design
  • ICC/ANSI A117.1: Accessible and Usable Buildings and Facilities
  • UL Positive Pressure Certified: ANSI/UL10C
  • Fire Door Certified: CAN/ULC-S104 and ANSI/UL10B
  • Complies with NFPA 80 & NFPA 252
  • ANSI/BHMA A156.21 Certified
  • Listed in the BHMA Certified Products Directory

Approved for use with Hollow Metal fire doors rated up to 3 hours and Wood fire doors rated up to 90 minutes.


Product Specifications

  • Brand: GapFix™
  • Material: 6063 Aluminum
  • Finish: Mill Finish Aluminum
  • Length: 30"
  • Profile Width: 8"
  • Height: 1/2"
  • Wall Thickness: .120"
  • Load Rating: Up to 1000 lbs
  • Country of Origin: Made in USA

Includes

  • 1 Each 30" GapFix™ 8" x 1/2" Saddle Threshold
  • #10 x 1-1/2" Flat Head (FH) Zinc Plated Wood Screws (when pre-punched option is selected)

For concrete slab installations, appropriate masonry anchors should be used.


Installation Resources

📘 View Step-by-Step Commercial Threshold Installation Article

📄 Download Threshold Installation PDF


Watch Installation Videos


Why Choose GapFix™?

  • Commercial-grade Mill Finish Aluminum construction
  • ADA compliant 1/2" barrier-free profile
  • UL certified for fire-rated applications
  • ANSI/BHMA A156.21 certified
  • Heavy-duty .120" wall and 1000 lb load rating
  • Made in USA - manufactured per order
  • Available with or without pre-punched mounting holes

GapFix™ — Fix the Opening, Not Just the Hardware.

Here To Serve You

Have Questions or Need Help?

Our specialists are just a phone call away. Call 866-232-5673 and we will gladly assist you!

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