24" x 72" BA-OFRD Oversized Fire Rated Doors for Walls - Single Leaf

The 24" x 72" BA-OFRD Oversized Fire Rated Doors For Walls - Single Leaf delivers dependable, code-compliant access through fire-rated wall assemblies in commercial and institutional buildings.

Built from 16-gauge steel on both the door and mounting frame, is ideal for larger fire-rated wall openings, including configurations available beyond many standard stock sizes. It helps contractors, architects, and facility teams maintain fire protection while providing convenient access to concealed mechanical, electrical, and plumbing systems.

Because it carries a UL 1-1/2 hour "B" label and is available in oversized configurations, this door lets contractors and specifiers cover larger openings that standard rated doors cannot, without stepping outside fire-code requirements. Fire-rated access doors do not stop fires from starting; they help slow down the spread of a fire for a limited period.

Why Choose 24" x 72" BA-OFRD Oversized Fire Rated Doors for Walls - Single Leaf?

• Certified Fire Rating: Carries a UL 1-1/2 hour "B" label (ULC 2-hour "B" label optional) and meets UL 10B and CAN/ULC S104, so the opening maintains the fire rating of the surrounding wall.
• Oversized Single-Leaf Coverage: Available in large sizes up to 24" x 79" as a single leaf, giving crews full access to equipment behind rated walls where a standard door would be too small.
• Rigid 16-Gauge Construction: Uses 16-gauge steel on both the door and mounting frame with reinforced edges, so the panel holds its shape through repeated service access.
• Self-Closing and Self-Latching: Includes a self-closing, self-latching mechanism with an inside latch release, helping the door meet fire-code closure requirements automatically.
• Concealed Hinge and Flush Panel: Sits flush to the frame on a concealed hinge for a clean wall appearance and unobstructed operation.
• Field-Ready Finish: Ships with a baked white prime coat ready for field painting, so it can be finished to match the surrounding wall.

Not sure if the BA-OFRD is the right access door for your fire-rated wall opening? Browse our full range of fire-rated solutions or speak with our specialist if you have any questions.

Key Product Specifications

• Door Size: 24" x 72"
• Material: 16-gauge door, 16-gauge mounting frame.
• Door Style: Flush, single leaf with reinforced edges
• Flange: 1" wide
• Hinge: Concealed
• Latch: Universal self-latching bolt, operated by knurled knob or flush key
• Closure: Self-closing and self-latching with inside latch release
• Fire Rating: UL 1-1/2 hour "B" label; ULC 2-hour "B" label optional
• Standard Compliances: UL 10B, CAN/ULC S104, NFPA 80
• Finish: Baked white prime coat, ready for field painting. Stainless Steel
• Material Options: Steel or stainless steel

What Comes Standard and What Can Be Configured?

Every BA-OFRD ships with the following as standard:

• 16-gauge steel door and 16-gauge mounting frame
• Flush single-leaf panel with reinforced edges and 1" flange
• Concealed hinge
• Universal self-latching bolt operated by knurled knob or flush key
• Self-closing, self-latching mechanism with inside latch release
• Baked white prime coat finish

The following options must be specified at the time of order and are not included as standard:

• ULC 2-hour "B" label rating
• Stainless steel construction
• Rim cylinder lock preparation (for master keying)
• Mortise cylinder lock preparation (for master keying)

LEED Compatibility

Specifying rated access doors that match the fire-rating requirements of the assembly supports compliant, well-documented construction. For projects pursuing green building certification, coordinate product selection with your project's LEED credit strategy and confirm current requirements with your design team.

What to Know About Rough Opening and Installation Requirements?

Required Rough Opening

The BA-OFRD requires a wall opening equal to the nominal door size plus 3/8" (9 mm). The added clearance allows the frame to seat properly within the rated wall. Always confirm the exact opening against the submittal drawing for your specified size before framing.

Compatible Applications

This door is designed for fire-rated wall assemblies where temperature rise is not a factor. Typical uses include:

• Fire-rated corridor and shaft walls
• Rated partitions concealing valves, dampers, and shutoffs
• Mechanical and electrical access points within rated walls
• Institutional and commercial buildings requiring code-compliant wall access

Installation Notes

• Install only in a fire-rated wall assembly consistent with the door's label.
• The self-closing, self-latching mechanism is factory-set to support code-required closure.
• The baked white prime coat is suitable for field painting after installation.
• For master keying, order the door pre-prepared for a rim or mortise cylinder lock.

For best practices on how to install fire-rated access panels, explore our installation guides page. You’ll find helpful procedures and considerations to ensure your installation remains compliant.

Who Specifies BA-OFRD and Where Is It Used?

The BA-OFRD is typically specified by architects, general contractors, mechanical and electrical subcontractors, and facility managers responsible for maintaining fire-code compliance while keeping concealed systems accessible.

Common applications include:

• Commercial offices - rated corridor and shaft wall access
• Hospitals and healthcare facilities - fire-rated access in patient and clinical areas
• Schools and universities - rated wall access in corridors and utility spaces
• Hotels and multifamily buildings - concealed valve and damper access behind rated walls
• Industrial and institutional facilities - large equipment access through rated assemblies

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Frequently Asked Questions About Oversized Fire Rated Wall Doors

What does a UL 1-1/2 hour "B" label mean on an access door?

A "B" label indicates the door assembly is tested and rated for openings in fire-rated wall partitions. The 1-1/2 hour rating means the assembly is designed to resist the passage of fire for that duration under UL 10B test conditions, helping the wall maintain its overall rating.

Can the BA-OFRD be used in a ceiling?

No. This model is designed for fire-rated wall assemblies only. For rated ceilings, specify a door tested and labeled for ceiling applications, since wall and ceiling ratings are certified differently.

Why is this called a single-leaf door?

Single leaf means the access opening is covered by one hinged panel rather than a pair of doors. It provides a clean, straightforward opening for the oversized sizes offered in this model.

Does the door need additional hardware to meet fire code?

The BA-OFRD comes standard with a self-closing, self-latching mechanism and inside latch release, which support code-required closure. Master keying with a rim or mortise cylinder lock can be added by specifying it at the time of order.

Why buy fire-rated access doors from Best Access Doors instead of a general marketplace?

Best Access Doors specializes exclusively in access doors and panels, so you get direct access to product specialists who can verify fire ratings, sizing, and compliance for your specific assembly rather than guessing from a generic listing.

Get Rated Wall Access Built for Your Project

For larger fire-rated wall openings, the 24" x 72" BA-OFRD provides the certified compliance, durable construction, and configurable options needed to specify with confidence.

Contact us at +1-888-327-5471 to discuss your project needs or request a quote today. Make your next project easier with expert recommendations and dependable access solutions!