Skip to content

Fire Rated Door Hinges

Fire rated doors need more than strength—they require certified, high-performance hardware that won’t fail under pressure. Waterson self closing full mortise hinges are UL-listed for 3 hours fire rated doors, giving you the reliability you need to meet code and protect property.

Designed with built-in speed control and anti-slam function, these fire-rated spring hinges ensure smooth, quiet closing that keeps doors secure and frames protected. Easy to install and adjust, Waterson fire rated door hinges deliver the safety, durability, and performance professionals count on—every time.

  • Original price $440.59 - Original price $497.59
    Original price
    $440.59 - $497.59
    $440.59 - $497.59
    Current price $440.59

    Fire Rated Self Closing Hinges | 7ft | SS304 | K51M-450-B3 | 3 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  3Hr Fire-rated Interior U...

    View full details
    Original price $440.59 - Original price $497.59
    Original price
    $440.59 - $497.59
    $440.59 - $497.59
    Current price $440.59
  • Original price $399.59 - Original price $456.59
    Original price
    $399.59 - $456.59
    $399.59 - $456.59
    Current price $399.59

    Arch Door Closer | 7ft | Fire Rated | SS304 | K51M-400-A3 | 3 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated   Arch ...

    View full details
    Original price $399.59 - Original price $456.59
    Original price
    $399.59 - $456.59
    $399.59 - $456.59
    Current price $399.59
  • Original price $307.40 - Original price $331.79
    Original price
    $307.40 - $331.79
    $307.40 - $331.79
    Current price $307.40

    Hydraulic Door Hinges | Interior Half Door | SS304 | K51M-450-B2 | 2 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  Interior Use Only French ...

    View full details
    Original price $307.40 - Original price $331.79
    Original price
    $307.40 - $331.79
    $307.40 - $331.79
    Current price $307.40
  • Original price $440.59 - Original price $497.59
    Original price
    $440.59 - $497.59
    $440.59 - $497.59
    Current price $440.59

    Self Closing Bathroom Stall Hinges | SS304 | K51M-400-B3 | 3 Pack

    In stock

    Warning : Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Interior Use Only  Arch...

    View full details
    Original price $440.59 - Original price $497.59
    Original price
    $440.59 - $497.59
    $440.59 - $497.59
    Current price $440.59
  • Original price $456.59 - Original price $513.59
    Original price
    $456.59 - $513.59
    $456.59 - $513.59
    Current price $456.59

    K51M-500D-A3 | Mechanical Adjustable Self Closing Hinge | 5” x 5” | Fire-rated Stainless Steel | 3 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Fully E...

    View full details
    Original price $456.59 - Original price $513.59
    Original price
    $456.59 - $513.59
    $456.59 - $513.59
    Current price $456.59
  • Original price $307.40 - Original price $345.40
    Original price
    $307.40 - $345.40
    $307.40 - $345.40
    Current price $307.40

    K51M-400-Residential-B2 | Hydraulic Hybrid Self Closing Hinge | 4” x 4” | 2 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications  Fully Exterior   Arch Top  Heavy D...

    View full details
    Original price $307.40 - Original price $345.40
    Original price
    $307.40 - $345.40
    $307.40 - $345.40
    Current price $307.40
  • Original price $399.59 - Original price $456.59
    Original price
    $399.59 - $456.59
    $399.59 - $456.59
    Current price $399.59

    No Slam Hinges | Fire Rated | Self Closing | SS304 | 7ft | K51M-450-A3 | 3 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Fully E...

    View full details
    Original price $399.59 - Original price $456.59
    Original price
    $399.59 - $456.59
    $399.59 - $456.59
    Current price $399.59
  • Original price $608.80 - Original price $684.80
    Original price
    $608.80 - $684.80
    $608.80 - $684.80
    Current price $608.80

    K51M-500D-A4 | Mechanical Adjustable Self Closing Hinge | 5” x 5” | 8ft | Fire-rated Stainless Steel | 4 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Fully E...

    View full details
    Original price $608.80 - Original price $684.80
    Original price
    $608.80 - $684.80
    $608.80 - $684.80
    Current price $608.80
  • Original price $266.40 - Original price $304.40
    Original price
    $266.40 - $304.40
    $266.40 - $304.40
    Current price $266.40

    Garage Door Self Closing Hinge | 7ft | Residential | SS304 | K51M-400-A2 | 2 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications  3Hr Fire-rated Fully Exterior   Ar...

    View full details
    Original price $266.40 - Original price $304.40
    Original price
    $266.40 - $304.40
    $266.40 - $304.40
    Current price $266.40
  • Original price $573.80 - Original price $649.80
    Original price
    $573.80 - $649.80
    $573.80 - $649.80
    Current price $573.80

    Automatic Closing Door Hinge | Interior Door Soft Close | K51M-450-B4 | 4 Pack

    In stock

    Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  3-Hr Fire Rated Interior Use Only Fram...

    View full details
    Original price $573.80 - Original price $649.80
    Original price
    $573.80 - $649.80
    $573.80 - $649.80
    Current price $573.80
  • Original price $649.80 - Original price $725.80
    Original price
    $649.80 - $725.80
    $649.80 - $725.80
    Current price $649.80

    Self Closing Fire Door Hinges 5"x5" | 8ft Door | SS304 | K51M-500D-B4 | 4 Pack

    In stock

    Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Interior Use Only 3Hr Fire-rated F...

    View full details
    Original price $649.80 - Original price $725.80
    Original price
    $649.80 - $725.80
    $649.80 - $725.80
    Current price $649.80
  • Original price $532.80 - Original price $608.80
    Original price
    $532.80 - $608.80
    $532.80 - $608.80
    Current price $532.80

    8ft Interior Door Hinges | SS304 | K51M-400-A4 | 4 Pack

    In stock

    Warning : Special finish (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Fully Exte...

    View full details
    Original price $532.80 - Original price $608.80
    Original price
    $532.80 - $608.80
    $532.80 - $608.80
    Current price $532.80
  • Original price $532.80 - Original price $608.80
    Original price
    $532.80 - $608.80
    $532.80 - $608.80
    Current price $532.80

    K51M-450-A4 | Mechanical Adjustable Self Closing Hinge | 4.5” x 4.5” | 8ft | Fire-rated Stainless Steel | 4 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Fully E...

    View full details
    Original price $532.80 - Original price $608.80
    Original price
    $532.80 - $608.80
    $532.80 - $608.80
    Current price $532.80
  • Original price $497.59 - Original price $554.59
    Original price
    $497.59 - $554.59
    $497.59 - $554.59
    Current price $497.59

    K51M-500D-B3 | Hydraulic Hybrid Self Closing Hinge | 5” x 5” | Fire-rated Stainless Steel | 3 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  Interior Use Only 3Hr ...

    View full details
    Original price $497.59 - Original price $554.59
    Original price
    $497.59 - $554.59
    $497.59 - $554.59
    Current price $497.59
  • Original price $573.80 - Original price $649.80
    Original price
    $573.80 - $649.80
    $573.80 - $649.80
    Current price $573.80

    K51M-400-B4 | Hydraulic Hybrid Self Closing Hinge | 4” x 4” | 8ft | Heavy Duty Stainless Steel | 4 Pack

    In stock

    Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Interior Use Only A...

    View full details
    Original price $573.80 - Original price $649.80
    Original price
    $573.80 - $649.80
    $573.80 - $649.80
    Current price $573.80
  • Original price $266.39 - Original price $304.39
    Original price
    $266.39 - $304.39
    $266.39 - $304.39
    Current price $266.39

    K51M-450-A2 | Mechanical Adjustable Gate Closer Hinges | 4.5” x 4.5” | Heavy Duty Stainless Steel | 2 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Court Rooms Half Door Cafe Door Hea...

    View full details
    Original price $266.39 - Original price $304.39
    Original price
    $266.39 - $304.39
    $266.39 - $304.39
    Current price $266.39
  • Original price $554.59 - Original price $554.59
    Original price
    $554.59
    $554.59 - $554.59
    Current price $554.59

    Heavy Duty Soft Close Hinges | Large Interior Door | 7ft | SS304 | K51M-600-B3 | 3 Pack

    More on the way!

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Talk to Sales Applications Hotel Rooms Interior ...

    View full details
    Original price $554.59 - Original price $554.59
    Original price
    $554.59
    $554.59 - $554.59
    Current price $554.59
    Sold out
  • Original price $649.80 - Original price $877.80
    Original price
    $649.80 - $877.80
    $649.80 - $877.80
    Current price $649.80

    Antique Gold Door Hinges with Hydraulic Hydric | Stainless Steel | 8ft | K51M-B4-US4 | 4 Pack

    In stock

    Attention: Custom color is available by request DESCRIPTION DETAILS SPECIFICATIONS VIDEO TALK TO SALES FIRST IMPORTANT: CUSTOM FINISH - NO RE...

    View full details
    Original price $649.80 - Original price $877.80
    Original price
    $649.80 - $877.80
    $649.80 - $877.80
    Current price $649.80
  • Original price $497.59 - Original price $668.59
    Original price
    $497.59 - $668.59
    $497.59 - $668.59
    Current price $497.59

    Gold Door Hinges | Hydraulic | Self Closing | 304 SST | 7ft | K51M-B3-US4 | 3 Pack

    In stock

    Attention: Custom hinges available by request DESCRIPTION DETAILS SPECIFICATIONS VIDEO TALK TO SALES FIRST IMPORTANT: CUSTOM FINISH - NO RET...

    View full details
    Original price $497.59 - Original price $668.59
    Original price
    $497.59 - $668.59
    $497.59 - $668.59
    Current price $497.59
  • Original price $649.80 - Original price $649.80
    Original price
    $649.80
    $649.80 - $649.80
    Current price $649.80

    K51L-SWRH-450-B4 | Hydraulic Hybrid Swing Clear Hinge | 4.5” x 4.5” | 8ft | Fire-rated Stainless Steel | 4 Pack

    In stock

    Attention: This model is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  Interior Use Only Frameless Glass Door...

    View full details
    Original price $649.80 - Original price $649.80
    Original price
    $649.80
    $649.80 - $649.80
    Current price $649.80
  • Original price $497.59 - Original price $497.59
    Original price
    $497.59
    $497.59 - $497.59
    Current price $497.59

    K51L-SWRH-450-B3 | Hydraulic Hybrid Swing Clear Hinge | 4.5” x 4.5” | Fire-rated Stainless Steel | 3 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Offices  Interior Use Only Framele...

    View full details
    Original price $497.59 - Original price $497.59
    Original price
    $497.59
    $497.59 - $497.59
    Current price $497.59
  • Original price $513.59 - Original price $513.59
    Original price
    $513.59
    $513.59 - $513.59
    Current price $513.59

    6 Inch Fire Door Hinges | 7ft | SS304 | K51M-600-A3 | 3 Pack

    More on the way!

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Talk to Sales Applications 3Hr Fire-rated Both I...

    View full details
    Original price $513.59 - Original price $513.59
    Original price
    $513.59
    $513.59 - $513.59
    Current price $513.59
    Sold out
  • Original price $608.80 - Original price $608.80
    Original price
    $608.80
    $608.80 - $608.80
    Current price $608.80

    K51L-SWRH-450-A4 | Mechanical Adjustable Swing Clear Hinge | 4.5” x 4.5” | 8ft | Fire-rated Stainless Steel | 4 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Fully E...

    View full details
    Original price $608.80 - Original price $608.80
    Original price
    $608.80
    $608.80 - $608.80
    Current price $608.80
  • Original price $456.59 - Original price $456.59
    Original price
    $456.59
    $456.59 - $456.59
    Current price $456.59

    K51L-SWRH-450-A3 | Mechanical Adjustable Swing Clear Hinge | 4.5” x 4.5” | Fire-rated Stainless Steel | 3 Pack

    In stock

    Attention: Special finishes (US4) is non-refundable DESCRIPTION DETAILS SPECIFICATIONS VIDEO Applications Hotel Rooms  3Hr Fire-rated Fully E...

    View full details
    Original price $456.59 - Original price $456.59
    Original price
    $456.59
    $456.59 - $456.59
    Current price $456.59

Why You Should Use Self Closing Fire Door Hinges?

In emergency scenarios, a door that fails to close properly can endanger lives. Traditional closers are bulky and often exposed, while Waterson self closing fire door hinges install flush and protect the architectural integrity of the door. Apply to all areas - commercial, residential, industrial environments. 

Common Issues They Solve:

  1. Fire door not closing properly — a top concern in compliance checks.
  2. Fire door hinge position — critical for safety certification.
  3. Door slamming or staying open — resolved through our adjustable tension design.
  4. Door hinges installation — simplified with built-in hybrid mechanics.

Waterson Fire Door Certified Performance

Waterson fire rated full mortise hinges are tested to ANSI/BHMA A156.17 and meet UL 3-hour fire rating standards. Their stainless steel construction (SS304/316) withstands heat, corrosion, and high-frequency usage in commercial and industrial settings.

How to Stop Fire Doors Slamming

Fire doors that slam shut create noise, safety risks, and long-term damage. In commercial and institutional buildings, slamming can compromise the latch, damage the frame, or even invalidate fire safety compliance.

Waterson Solution:

  • Built-in soft-close system slows the door before final latching, best option for fire door not closing properly.
  • Tool-free speed control lets you fine-tune closing strength.
  • Heavy-duty stainless steel resists warp or fatigue under repeated force.
  • Fire-rated for 3-hour UL compliance, ensuring peace of mind.
  • No need overhead door closer make the appearance better.

How to Install New Door Hinges on Fire-Rated Doors

Waterson self-closing fire rated hinges combine hydraulic damping into the hinge body, offering a streamlined look and easy setup—ideal for modern fire doors.

Step-by-step Installation: 

  1. Hinge Set: 2 hinges for ≤60" or <150 lbs
    3 hinges for 60–90" or 150–330 lbs
    4 hinges for 90–120" or 260–440 lbs
  2. Fire door hinge position: Follow hinge labels (TOP, MID, BOT); don’t mix Waterson with other brands.
  3. Tools Needed: 3mm & 5mm hex wrenches, screwdriver, spreader bar (for DS models).
  4. Mounting: Mortise, drill, and align flush with door/frame.
  5. Pre-Check: Door must swing freely and latch before adjusting.
  6. Adjustments: Use hex keys to tune spring tension, swing, and latch speed.

Why Garage Doors Require Fire Rated Door Hinges

Fire rated door hinges are essential for garage doors because they help block fire and smoke from entering the rest of the building. Unlike standard hinges that can melt, warp, or break under high heat, fire rated hinges are built to withstand extreme temperatures. This ensures the door stays properly aligned and sealed during a fire, maintaining the barrier and giving people more time to react.

Why Elevator Doors Require Fire Rated Door Hinges

Elevator doors need fire-rated hinges to stop fire and smoke from spreading and to meet safety codes. These hinges are built to handle extreme heat, keeping the door firmly in place so it doesn’t fall out of the frame during a fire. It’s a critical part of protecting people and containing fire in multi-story buildings.

Waterson Fire Rated Door Hinge Common Applications

  • Fire rated hotel door
  • Exit door
  • Commercial door
  • Hotel door
  • Stairwells door
  • Residential door
  • Classroom door
  • Garage door
  • Elevator door