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Baron 48" Fire-Rated Commercial Door Threshold - ADA, UL & ANSI/BHMA 5" x 1/2" Aluminum Saddle

Do Not Risk Non-Certified Door Thresholds. Baron thresholds are UL certified and approved for rated openings. When compliance matters, use hardware that is tested and documented.

Baron Commercial Door Threshold for 48" Fire-Rated Frame Opening - ADA, UL & ANSI/BHMA Certified 5" x 1/2" Aluminum Saddle

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Product Code: BARON-51248M
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Baron 48" Commercial Aluminum Saddle Threshold - 5" Wide x 1/2" Height - Fire Rated & ADA Compliant

UL Positive Pressure Certified & ANSI/BHMA A156.21 Approved

The Baron 48" Aluminum Saddle Threshold is engineered specifically for commercial hollow metal doors and labeled fire-rated openings requiring ADA accessibility and inspection compliance.

This threshold features a 5" wide x 1/2" tall fluted aluminum profile constructed from 6063 architectural aluminum alloy, providing a smooth transition while maintaining proper door clearances required for commercial openings.

Pre-drilled holes and installation fasteners are included.


⚠ Do Not Risk Non-Compliant Thresholds

Many thresholds sold online are not certified to ANSI/BHMA A156.21, not tested for fire door assemblies, and may violate ADA accessibility requirements.

Installing a non-certified threshold can:

  • Create trip hazards
  • Fail ADA inspection
  • Void a fire door assembly
  • Violate NFPA 80 requirements
  • Cause building inspection rejection

Baron thresholds are tested, certified, and inspection approved.


Product Specifications

  • Length: 48"
  • Width: 5"
  • Height: 1/2"
  • Material: Aluminum Alloy 6063
  • Finish: Mill Finish Aluminum
  • Profile: Fluted Saddle Threshold
  • Pre-Drilled Holes: Yes
  • Fasteners: Included
  • Corrosion resistant architectural aluminum
  • Smooth transition for pedestrian and wheeled traffic

ADA Accessibility Compliance

  • Meets ADA Standards for Accessible Design
  • Complies with ICC/ANSI A117.1 Accessible Buildings and Facilities
  • Barrier-free transition profile
  • Suitable for wheelchair accessible openings

UL Fire Door & Positive Pressure Certifications

Fire Door Rated - Certified by UL

  • Certified to CAN/ULC-S104 and ANSI/UL10B
  • Complies with NFPA 80 and NFPA 252
  • Hollow Metal fire doors rated up to 3 hours
  • Wood fire doors rated up to 90 minutes

Positive Pressure - ANSI/UL10C

  • Certified to ANSI/UL10C
  • Complies with IBC, NFPA 80 and NFPA 252

ANSI/BHMA Certified Threshold

  • Certified to ANSI/BHMA A156.21
  • Listed in BHMA Certified Products Directory
  • Approved for commercial door assemblies

Installation Resources

šŸ“˜ View Step-by-Step Threshold Installation Guide

šŸ“„ Download Threshold Installation PDF


Watch Installation Video


Why Choose Baron?

  • Designed for commercial door assemblies
  • Fire door compliant & UL tested
  • ADA accessible profile
  • ANSI/BHMA certified hardware
  • Inspection-ready documentation
  • Commercial-grade durability

Built for professionals. Built for accessibility. Built for inspection approval.

āœ” Inspector & Code Official Approved Applications

Baron Saddle Thresholds are designed for use on labeled fire-rated hollow metal openings where inspection approval matters.

  • UL Listed for Fire Door Applications
  • Positive Pressure Certified (ANSI/UL10C)
  • ADA Accessible Compliant
  • ANSI/BHMA A156.21 Certified
  • Complies with NFPA 80, NFPA 252, IBC and ADA

Ideal for schools, hospitals, government buildings, and commercial facilities subject to inspection.

Baron delivers confidence at inspection time.



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Build Your Commercial Door Package Online

Storefront glass doors, commercial steel doors, commercial wood doors, frames, and hardware - all configured through one easy-to-use builder. Submit your project in minutes and receive a custom quote within 24 hours from a dedicated Project Manager who reviews your opening, verifies specifications, and helps ensure your project is configured correctly.

Work directly with commercial door specialists - not order takers.

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