An acoustically tested door bottom seal designed for rebated installation mounted into a 13mm x 28mm groove that has been morticed into the bottom edge of the door. This acoustic seal is also available in a face mounted version. 

This automatic, drop-down action, door bottom seal is spring loaded to lift clear of the floor as soon as the door leaf is opened by a few millimetres. Operates automatically, by the pressure of the door jamb on the seal's adjusting screw, to drop down and seal when the door closes and retract when the door opens.

Tested for durability 200,000 cycles completed without failure for fire rated smoke doors.Suitable for all types of wooden doors. 14mm maximum drop, Graduated Scissor action (seal drops on hinge side before lock side). 


Smoke Testing was conducted to BS EN 1634-3: 2004 smoke control tests for door and shutter assemblies, openable windows and elements of building hardware – Part 3: Smoke control test for door and shutter assemblies.

Rebated Automatic Acoustic Rated Door Bottom Drop Seal

Seal Length
    • Acoustically tested on proprietary fire doors
    • Aluminium body with self extinguishing PVC rubber coextruded seal and carrier.
    • Sound reduction of up to Rw 42 dB*
    • Suitable for new and retrofit applications.
    • Rebated fitting - comes with prefitted screws.
    • Aluminium finish.
    • Tested to 200,000 cycles.
    • Smoke tested in accordance with BS EN 1634-3: 2004.

Prices exclude VAT

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Information provided is to the best of our knowledge true and accurate and based upon current test data and product specification from third parties and is supplied for your guidance only. Customers should satisfy themselves to the suitability of the product based on the products limitation of applications and that the product is fit for purpose for their intended use and no guarantee is given or implied since the conditions of actual use are beyond our control. (part of the Stormflame Group), disclaim any liability for loss, damage or other expense arising from the use of information, data or products mentioned or referred to by ourselves and reserve the right to change any details or specifications without notice. If you are in any doubt as to the suitability of a product for your intended application please contact our technical team on 01329 841 416 or email and we will contact you.

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