Pemko #411NBL Automatic Door Bottom, Mortised with Nylon Brush Seal, .75" Drop

Mortised Automatic Door Bottom with Nylon Brush Seal
Pemko Manufacturing

This Automatic Door Bottom uses a nylon brush seal to fill gaps up to 3/4". It is fully mortised and designed to be applied to wooden doors. Narrow casing is compatible with 1-3/8" or 1-3/4" thick doors. Available in aluminum mill finish and is custom cut to size.

Need it sooner? Stock size and finish is available to ship within 1-3 business days. See our Pemko #411NBL Automatic Door Bottom, Mortised with Nylon Brush Seal, .75" Drop, 1-3/8" Thick, 36" Length

PRICED PER PIECE

To determine sizing, see How to Measure for an Automatic Door Bottom. Note, door bottom can be further trimmed up to 2" in the field.

See tabs below for additional information
    • SKU
      PK411ANBL|36
    • Market price:$64.28
      • save 10%
    • Starting price: Price: $57.85 per item
     

    This Automatic Door Bottom is fitted with a nylon brush seal to seal the gap under doors from sound, fire, smoke, dusts and drafts. It is fully mortised which is great for aesthetics and for luxury and designer doors.

    This model is designed to be applied to wood doors. It is compatible with both 1-3/4" and 1-3/8" thick doors, however, different end plates are required for each door. Please select from options above.

    Need it sooner? Stock size and finish is available to ship within 1-3 business days. See our Pemko #411NBL Automatic Door Bottom, Mortised with Nylon Brush Seal, .75" Drop, 1-3/8" Thick, 36" Length

    Seal: The nylon filaments conform well to irregular surfaces such as carpets, stone and grout lines. An aluminum stop is lowered along with the brush to prevent the brush from being pushed back too far and lengthens the life of the seal.

    Installation: Installation instructions, end plates and screws provided.   

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

    This product is guaranteed for 5 years against defects in material and workmanship.
    Click here to view our full Warranty Policy.

    Products can also be purchased with rubber seal, see our Automatic Door Bottom, Narrow Casing with Rubber Seals.

      • SKU
        PK411ANBL|36
    • QuickShip
      No
    • Manufacturer
      Pemko Manufacturing
    • MPN
      411ANBL
    • Product Design
      • Mounting Type
        Fully Mortised
      • Door Type
        Wooden Door
    • Dimensions
      • Casing Dimensions
        The mechanism of the door bottom is encased in a 1-3/8" (H) x 9/16" (W) casing. Length is custom cut to size.
      • Length
        Custom Cut to Size
      • Drop Size
        Up to .75" Drop
      • Suggested Door Cut-Out
        1.5" H x .625" W
      • Door Thickness
        1-3/4" Thick, 1-3/8" 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
        Flat Black (US19)
    • Compliance Details
      • Compliance Details
        Air Infiltration Rated, ADA Compliant, BHMA Certified, Smoke Rated, Fire Rated, UL Classified, GreenGuard Gold Certified
      • ANSI Designation
        R3A324, R3A325
      • Warranty
        5 Year Limited Warranty

    How it Works: Automatic Door Bottoms utilize a concealed flat spring mechanism and plunger. When the door is closed, a brass plunger is compressed to automatically lower the seal, starting from the hinge side first. This motion ensures a smooth usage even on an uneven surface and prevents drag. The seal is automatically raised upon opening.

    See also About Automatic Door Bottoms.

    Click to Print 

     

    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.

     

    Click to View Ratings Explained

     

      Eco-V Vinyl Seal complies with UL Green Guard Gold Gold

     

     

     

    Finishes Comply ANSI/BHMA Codes: US27 / 719

    Door Bottom Complies with ANSI R3A324, R3A325


    SHIPPING / PROCESSING TIME:


    This product ships directly from the manufacturer. 
    Please allow 2 - 3 weeks to ship
    • 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 $199.00.
      • Oversize Freight Items: Orders containing items sized 109" and above have an oversize surcharge of $299.99.
      • Orders totals above $2,000.00 will ship free, regardless of size.
    • Alaska and Hawaii, Canada, and International Shipping:
    • Returns:
      • This product is custom made and is not returnable.
      • We are committed to your satisfaction, as a courtesy, we may, at our discretion accept returns with a minimum 35% restock fee.
      • CLAIMS FOR SHORTAGE OR DAMAGE IN TRANSIT: All claims must be made within Seven (7) days of receipt of goods.
      • Weatherstripping products will not be considered for returns.
      • Item must be in new, re-saleable condition.
      • 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.
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