Certified

Safe, airtight, high quality fire rated doors for sale

Trusted Fire-Rated Door Manufacturer & Supplier in the USA

Grandsea Windows & Doors is a leading manufacturer of fire-rated doors designed to provide maximum safety and reliability. Whether it’s a private home, public building, school, hospital, or large commercial facility, you can count on our certified fire and smoke-resistant doors to perform when it matters most.

We manufacture and supply a complete range of custom fire-rated doors built to meet strict USA fire safety codes and industry standards (NFPA, UL, ASTM). With multiple fire ratings, durable materials, and advanced accessories, our doors combine protection, performance, and design flexibility—all at competitive manufacturer-direct prices.

Fire compartments

The fire compartments stop spreading fire onto neighboring structures and areas/floors in a building. The fire compartments are constructed between the exterior and the inner wall of a structure.

Smoke compartments

Smoke compartments may be constructed by using closings for smoke protection. They can be made up of doors for smoke protection, as an instance, that can stop the passage of potentially dangerous fumes and smoke.

Components for fire doors

To ensure the safety of structural fires to ensure structural fire safety, smoke and fire doors should be constructed to self-closing. Overhead door closers, floor springs and swing door drives can ensure reliable closing.

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More Than Just Fire-Rated Doors

In addition to fire-resistant doors, Grandsea also offers a wide range of functional doors that can be used for a variety of purposes and meet a variety of requirements. Whether you need smoke-proof doors, security doors, soundproof doors or other special doors – we have a rich selection of functional doors for you. You can easily contact us to place an order, and we will promptly arrange for production.

Buy the right fire rated doors

Why Fire-Rated Doors Are Essential

Commercial buildings & public spaces – Fire-rated doors are mandatory to ensure safe evacuation routes and code compliance.
Residential properties – Fire-rated doors between garages and living spaces add an important safety layer for homeowners.
Mixed-use facilities – Buildings that combine commercial and residential spaces must be equipped with certified fire-rated door systems.

Our products give you peace of mind knowing you’re protected with solutions that meet both legal requirements and real-world safety needs.

Customizable Fire-Rated Doors for Every Need

We understand that every project has unique requirements. That’s why our fire-rated doors are available in different:

Materials – Steel, aluminum, and fire-rated wood doors
Fire ratings – 20-minute, 60-minute, or 90-minute protection
Configurations – Single or double-leaf options, left or right stop directions
Security upgrades – Convert to fire-rated security doors with laminated glass and reinforced frames
Design options – Fire-rated doors with glass inserts, soundproofing, smoke protection, and even multifunctional use

Specialized Fire-Rated Door Solutions

Fire-rated garage doors for residential and commercial use
Smoke-rated fire doors to prevent toxic smoke spread
Soundproof fire doors combining acoustic insulation with fire safety
Steel fire-rated doors for maximum durability
Aluminum and wood fire-rated doors for aesthetic appeal with proven safety
Accessories & systems – Door closers, hold-open systems, fire-rated windows, smoke detectors, and sealing systems

Fire-Rated Doors for USA Compliance

Grandsea ensures that all fire-rated doors are built to meet U.S. safety regulations and tested for stability, insulation, and smoke control. We help you choose the right:

Fire resistance class
Frame type and installation method (masonry, concrete, aerated concrete, or frame construction)
Floor seal system (stop rail, sliding seal, or drop-down seal)
Matching safety accessories

Our expert team offers consultation, design, and tailored quotations to make sure you get the perfect fit for your project at the best price.

Why Choose Grandsea Fire-Rated Doors?

Certified to U.S. standards (NFPA, UL)
Custom sizes and designs for homes and businesses
Direct manufacturer pricing with no middlemen
Proven expertise in fire protection and building safety
Fast delivery and professional customer support

At Grandsea Windows & Doors, your safety comes first. Contact us today for a free quote and discover how easy it is to buy high-quality fire-rated doors in the USA directly from the manufacturer.

FAQ'S About fire rated doors

What Is a Fire-Rated Door?

A fire door is a specially designed door that helps prevent the spread of fire and smoke within a building. Here are the main features and characteristics of fire doors:

1) Construction and Materials

Built using fire-resistant materials, such as solid wood, steel, or a combination of materials with a fire-resistant core
Designed to withstand high temperatures and maintain structural integrity during a fire

2) Fire Rating

Assigned a specific fire resistance rating, usually from 20 to 180 minutes
The rating indicates how long the door can withstand fire exposure while maintaining its functionality
The rating is determined through standardized fire resistance tests

What is a 20 minute fire rated door?

A 20-minute fire door is a fire door designed to resist fire and smoke for at least 20 minutes. Here are the key features and requirements of a 20-minute fire door:

Rating: A fire resistance of 20 minutes, which is a common minimum rating for an interior fire door.

Application: These doors are often used for:

Indoor one-hour corridor walls
Fire partitions
Smoke barriers
Areas where smoke control is required but enhanced fire resistance is not required

What are the requirements for a fire rated door?

The key requirements for fire doors are as follows:

Fire rating: Fire doors have specific ratings, usually ranging from 20 to 180 minutes, which indicate how long they can withstand fire exposure while maintaining structural integrity.
Compliance with standards: Fire doors must comply with building codes and safety standards such as NFPA 80, NFPA 101, and the International Building Code (IBC)
Automatic Closing Mechanism: All fire doors must be equipped with a functional automatic closing device that ensures the door will latch securely from any open position.
Reliable locking: Fire doors must have a reliable locking mechanism to stay closed during a fire
Appropriate materials: These doors must be constructed using fire-resistant materials such as steel, treated wood, or materials with a fire-resistant core
Testing and certification: Fire doors are rigorously tested according to standards such as UL 10B, UL 10C, and NFPA 252, and must be certified by a recognized testing agency