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This Zero International #365, Surface Mounted, Heavy-Duty Automatic Door Bottom will ensure a proper and tight seal to the gap at the bottom of your door. Will block, sound, light, drafts and more. Equipped with a long-lasting, high-quality, neoprene bulb and mechanism that has been tested to 5 million opening and closings. Smoke and Fire-rated, this ADB is available in variety of finishes and is custom cut to size. View more details in the description tab below.
To determine size required, see How to Measure for an Automatic Door Bottom.
This Zero International #365, Surface Mounted, Heavy-Duty Automatic Door Bottom will ensure a proper and tight seal to the gap at the bottom of your door. Will block, sound, light, drafts and more. Equipped with a long-lasting, high-quality, neoprene bulb and mechanism that has been tested to 5 million opening and closings.
Installation: Model is designed to be surface mounted. Installation instructions and screws provided. Screws are colored to coordinate with casing.
About Light Spring Strength: Light Spring Strength requires less operating force to activate than Standard Strength. Light Spring is compatible with ADA Compliant Doors and can be easily used by those with limited mobility. Casing dimensions are the same. Select from options above to purchase.
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 1 year guarantee against defects in material and workmanship.
Click to view our Full Warranty Policy.
For a semi-mortised version, click here to view our Zero #366 Semi-Mortised Automatic Door Bottom.
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. These automatic door bottoms have been successfully tested through 5 million cycles!
See also About Automatic Door Bottoms.
Click here for a Printable Copy of How to Install an Automatic Door Bottom.
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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. |
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STEP 1: SIZING YOUR DOOR BOTTOM Once your door is ready for installation you need to determine the size required for your door bottom:
For visual presentation see How to Measure for an Automatic Door Bottom. |
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Once you have determined 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).
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STEP 2: PREP FOR ATTACHING AUTOMATIC DOOR BOTTOM
Place the automatic door bottom against the door Once you have the automatic door bottom leveled and positioned correctly, with a pencil or marker mark where the attachment screws need to be drilled. |
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STEP 3: ATTACHING THE AUTOMATIC DOOR BOTTOM
To make installation easier you can drill a pilot hole which will ensure you attach the door bottom to the correctly marked spot. With the screws provided, screw in the automatic door bottom. In some models, a plate is provided for the hinge side of the frame. This will protect the door frame from getting worn down by the actuating plunger. If provided, attach to corresponding point on the frame. |
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STEP 4: TESTING YOUR AUTOMATIC DOOR BOTTOM
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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. For additional assistance and product information, feel free to contact us. Our trained and friendly staff will guide you with all your soundproofing needs. |
Along with wide threshold, I was able to use this on the push side of the door allowing the door to go over the carpet without wearing out the carpet. A perfect fit. End caps bend a little bit with depression of the rubber gasket however.
Trying to put this on a basement door to seal out the smells from the basement. Since it is surface mounted, it has to be a little shorter than the door so that as the door swings through it's arc, the additional width at the bottom from the surface mount doesn't catch the trim on the door frame. Even though I had a custom length cut, I had to cut it again myself and these are so well made that's easier said than done.
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