Automatic Door Bottom

 
(15 customer reviews)

$100.20$187.81

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SKU: DORBOT
Pricing

Return Policy: This product may be returned within 20 calendar days after receipt with a 30% restocking fee.

Estimated Shipping Lead Time: 2-3 weeks

Our Automatic Door Bottom utilizes a flat spring mechanism, which activates when closing the door, lowering a neoprene seal insert against the floor or threshold to create a sound seal. These are for use on the push side of the door. The frame compresses a protruding hinge-side “plunger” as the door closes, to activate the spring. The Automatic Door Bottom then drops a seal in a scissor-like motion from the hinge side, adjusting to the floor from a pivoting point. As the neoprene seal compresses, it forms a tight, secure seal against the saddle or floor. The sweep retracts automatically as the door opens.

Our Automatic Door Bottoms can be made to fit any sized door up to 48″. We offer a surface mounted unit, as well as a mortised and semi-mortised version. Surface mounted bottoms install without removing the door from its hinges. Semi-mortised bottoms may require door removal if the door does not have a cut out. Mortised bottoms will require removal of the door prior to installation. These door bottoms are available with a clear anodized aluminum or dark bronze anodized aluminum finish.

Automatic door bottoms are often used in conjunction with door jamb seals and acoustic thresholds or as an Acoustic Door Seal Kit.

Features

  • Standard and custom options available
  • Seals air gaps to increase the STC of door assemblies
  • Reversible for left or right-handed doors

Technical Information for Automatic Door Bottom:

  • Size: Widths up to 48″
  • Finish: Aluminum, Dark Bronze Anodized, custom powder coated finishes upon request.
  • Mounting Type:
    • Surface Mount (367): Installs direct to the surface of a door.
    • Semi-Mortised (366): Installs into notch, flush and exposed to one surface of a door.
    • Mortised (369-Aluminum finish only): Installs into a concealed notch underneath a door.
  • Seal: Solid neoprene rubber
  • Maximum Drop:
    • Surface Mount (367): Up to 1/2″
    • Semi-Mortised (366): Up to 1″
    • Mortised (369): Up to 1/2″
  • Tolerance: +/- 1/8″
  • Installation (See installation Guide in Documents tab)
    • Surface mounted bottoms install without removing the door from its hinges.
    • Semi-mortised bottoms may require removal of door if the door does not have cut out.
    • Mortised bottoms will require removal of the door prior to installation.
    • Please note: ADB End Caps add an additional 1/8” on each side (1/4” total) when installed.

For more information on our Automatic Door Bottom,
call us at 800.782.5742 or contact our sales department.

Customer Reviews

15 reviews for Automatic Door Bottom

  1. Sam Pillsbury

    could have used more detailed, clearer instructions for installation

  2. Johnny Allen

    A little work required but the door shuts with a snug fit and the sound buffer is even better than I hoped.

  3. Pro-Max Contractors

    Works so great it definitely blocks all sounds like it should

  4. Norm Poisson

    It works really well.

  5. Eric

    My only gripe is the lack of instructions. Installation was quite the guessing game. How far should the poison be from the door jamb? How do you estimate the amount of drop before screwing is into the door? What’s the order of installation / arrangement of all the pieces? How does this piece suit against the threshold? The provided instructions left a lot unanswered.

  6. SUNY Oneonta

    Cuts instrument sound bleed with amazing results.

  7. Ron Rude

    Easy to fit and mount, looks great when installed.