TMH Automatic Door Bottom, Mortised, Heavy Duty with Neoprene Bulb Seal, 1" Drop

Fully Mortised Clear Anodized Automatic Door Bottom 364
Trademark Hardware
Read 5 reviews

Stock sizes are available to ship within 1 business day. Click here for our Quick Ship Barzen Surface Mounted, Heavy Duty, Automatic Door Bottom.

This Fully Mortised, Heavy Duty Automatic Door Bottom will block sound, light, and drafts by creating a strong seal at the bottom of your door. Fitted with a solid neoprene bulb seal and high quality mechanism that has been successfully tested through 5 million cycles! Rated for smoke and fire and length is available in stock sizes.

To determine size required, see How to Measure for an Automatic Door Bottom.

For custom sizes, see our Mortised Heavy Duty, Automatic Door Bottom #364.

See tabs below for additional information
    • Weight
      4 lbs
    • SKU
      TH364AA32
    Call for price!
    845-388-1300
    In stock (1 item available)

    This is a QuickShip product, available in stock sizes only - for custom sizes see our full product Mortised, Heavy Duty, Automatic Door Bottom #364.

    The fully mortised aspect of this automatic door bottom is great for high end designer doors and luxury hotels and condo units that prefer their doors retain their clean, unobtrusive look.

    Length: Available in stock lengths. Can be cut up to 2" on the field.

    Handing:  Compatible with right and left handed doors.

    Installation:  Installation instructions and screws provided.

    Sizing:  To determine sizing, see How To Measure For An Automatic Door Bottom.

    Please note, images are for illustrative purposes only. They are not actual photos. Therefore, actual colors may vary slightly and size many be enlarged to show detail. See product specs for exact measurements.

    This product has a 3 year guarantee against defects in material and workmanship.
    Click here to view our full Warranty Policy. 

    For even higher sound control, see our Automatic Door Bottom, High Sound Mortised

      • Weight
        4 lbs
      • SKU
        TH364AA32
    • QuickShip
      Yes
    • Manufacturer
      Trademark Hardware
    • MPN
      364
    • Product Design
      • Mounting Type
        Fully Mortised
      • Door Type
        Wooden Door
    • Dimensions
      • Casing Dimensions
        Body measures 1.575" H x .924" W. Extended flanges on both sides measure .371". Total Width is 1.6".
      • Length
        32" Length, 36" Length, 42" Length
      • Drop Size
        Up to 1" Drop
      • Suggested Door Cut-Out
        1" x 1-5/8"
      • Door Thickness
        1-3/4" Thick
    • Installation
      • Handing
        Non-Handed
      • Installation Screws
        Installation Screws Provided
      • Sizing
        To determine sizing required see 'How to Size an Automatic Door Bottom'
    • Finishes
      • Finish
        Clear Anodized Aluminum (US28)
    • Compliance Details
      • Compliance Details
        Fire Rated, Sound Rated, BHMA Certified
      • ANSI Designation
        R3B3241
      • Warranty
        3 Year Limited Warranty

    The Automatic Door Bottom utilizes a concealed flat spring mechanism which is activated upon opening and closing of the door. A brass plunger is compressed when the door is closed to automatically drop the seal, starting from the hinge side first. The seal is raised when the door opens. This motion ensures a smooth drop without a drag, even on an uneven surface. It is compatible with a door saddle or against the floor. The door bottom is built from durable materials that are meant to last. It has been tested through 5 million cycles!

    See also About Automatic Door Bottoms.

    ANSI / BHMA Code Compliance: R3B324

    Click here for a Printable Copy of How to Install a Mortised Automatic Door Bottom.

    Automatic Door Bottoms are available with three mounting options: Surface Mounted, Semi-Mortised and Fully Mortised. A surface mounted application can be applied without removing the door from its hinges. For a semi-mortised, if the rabbet in the door is cut-out already, the door does not need to be removed. For a fully mortised application the door should be removed before starting. 

    STEP 1: PREPARE YOUR DOOR BOTTOM

    How to Install a Mortised Automatic Door Bottom - Preparing Your Door Bottom

    Remove door and cut mortise in bottom of door as per the dimensions of the provided product specs.

    NOTE: If a door is fire labeled or of special construction, mortise preparation must be done by the door manufacturer.

    STEP 2: MEASURE AND TRIM YOUR DOOR BOTTOM

    How to Install a Mortised Automatic Door Bottom - Measure Your Door

    Measure your door from side to side. That will determine the length required for your Door Bottom.

    How to Install a Mortised Automatic Door Bottom - Trim Your Door Bottom

    Once you have you determine the size needed, if necessary, trim your door bottom. Use a chop saw or table saw to create a perfectly straight cut.

    Note, Only trim opposite the actuating plunger, brass nut. (Trimming from the brass nut side will ruin your ADB). You can trim from the edge up to one inch of the screw on the side wall of the ADB.
     

    STEP 3: APPLY YOUR AUTOMATIC DOOR BOTTOM

    How to Install a Mortised Automatic Door Bottom - Apply Your Automatic Door Bottom

    With door removed from opening, install the door bottom with plunger at the hinge side, fasten with screws provided and install door in opening.

    STEP 4: ADJUSTING YOUR AUTOMATIC DOOR BOTTOM

    How to Install a Mortised Automatic Door Bottom - Adjust Your Automatic Door Bottom

    Screw the actuating plunger in or out as required until the gasketing just touches the sealing surface when the door is closed.

    It is not necessary to squash the gasket to provide an effective seal.

    Once you have followed through with all the instructions your Automatic Door Bottom is good to go! Enjoy years of quality sound, draft and light infiltration control with your new door bottom.

     


    SHIPPING / PROCESSING TIME:

    This product is part of our QuickShip line and will ship within 1 business day

    If out of stock, shipping may take up to 2 weeks, call to confirm stock.
    • Domestic Shipping Fees- (Hawaii and Alaska not Included):
      • FREE SHIPPING on orders over $300.00 (excludes oversized and freight orders). 
      • There will be a flat $19.99 shipping and handling fee on orders under $300.00.
      • Oversize: Orders containing items sized 50" - 95" have an oversize surcharge of $49.99.
      • Freight Items: Orders containing items sized 96" - 108" have an oversize surcharge of $199.99.
      • Oversize Freight Items: Orders containing items sized 109" and above have an oversize surcharge of $299.99.
      • Orders totals above $2,000 will ship free, regardless of size.
         
    • Alaska and Hawaii, Canada, and International Shipping:
    • Returns:
      • This products can be returned up to 30 days from date of purchase.
      • Custom cut item are not returnable
      • Item must be in new, resalable condition. No restock fee will be applied.
      • CLAIMS FOR SHORTAGE OR DAMAGE IN TRANSIT: All claims must be made within Seven (7) days of receipt of goods.
      • Please call or email us to receive an RMA number before returning. No returns will be processed without an RMA number.
      • Return shipping is customer's responsibility. A return address will be provided with RMA#.
      • If you are shipping via USPS (not recommended) do NOT require signature as we will not be able to pick up your package from local post office facility.
    5.0
    5 Reviews

    Ratings Distribution

    5 Stars 100 5
    4 Stars 0 0
    3 Stars 0 0
    2 Stars 0 0
    1 Star 0 0

    Reviewed by 5 customers

    5

    Easy to install and happy with the results.

    Comments about TMH Automatic Door Bottom, Mortised, Heavy Duty with Neoprene Bulb Seal, 1" Drop

    Great product!

    By Jim
    Verified Buyer
    5

    Eliminate under door drafts with a hidden door swee

    Comments about TMH Automatic Door Bottom, Mortised, Heavy Duty with Neoprene Bulb Seal, 1" Drop

    Excellent product. This is my third purchase of the Zero automatic door bottom, and the first that will be mortised into the bottom of the door. Well made of quality materials

    By Jan
    Verified Buyer
    5

    I will only buy this product.

    Comments about TMH Automatic Door Bottom, Mortised, Heavy Duty with Neoprene Bulb Seal, 1" Drop

    This seal is amazing, the 1" drop allows for a very tight seal when the door closes. The Neoprene seal feels and works very substantially and blocks plenty of air from traveling. I really liked the product. Our clients love this unit. #sweepstakes. We ordered two 36in units and they fit perfectly. PSM Construction Services, SoCal

    By Israel
    Verified Buyer
    5

    I'd buy this again from Trademark Hardware

    Comments about TMH Automatic Door Bottom, Mortised, Heavy Duty with Neoprene Bulb Seal, 1" Drop

    I built a solid wood door for my basement wine cellar. I bought the mortised automatic door bottom seal to avoid arc scratches where the door opens over our hardwood floor (that would be caused by a traditional door sweep). It was fairly easy to install once I cut the mortise channel in the door bottom. It operates smoothly and creates a near perfect air seal to protect our cellar conditions.

    By Lynn
    Verified Buyer
    5

    Great product!!!

    Comments about TMH Automatic Door Bottom, Mortised, Heavy Duty with Neoprene Bulb Seal, 1" Drop

    I can't say enough about the effectiveness of this product.

    By Chris
    Verified Buyer
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