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Pemko Automatic Door Bottoms

Pemko automatic door bottoms provide a retractable sealing solution for the gap beneath a door. The seal drops into position when the door closes and retracts when the door opens, helping maintain normal door operation while improving the seal at the bottom of the door.

Pemko automatic door bottom seals can be used where you need better control of sound, air, light, dust, and weather infiltration. They are suitable for a range of commercial, institutional, and other door applications where a standard fixed door sweep may not provide the right installation or sealing solution.

Pemko Automatic Door Bottom Seals

A Pemko automatic door bottom works by using a mechanical mechanism to activate the seal as the door closes. Instead of remaining in contact with the floor while the door moves, the seal retracts when the door is opened and extends when the door is closed.

This makes an automatic door bottom useful when you need a seal beneath the door without creating continuous contact with the floor during normal door operation.

What Can a Pemko Door Bottom Help With?

• Sound control: Helps reduce the open gap beneath a door where sound can pass through.
• Air infiltration: Helps seal unwanted air movement beneath the door.
• Light control: Helps block light passing through the bottom door gap.
• Dust control: Helps reduce the open space beneath doors in applications where dust infiltration is a concern.
• Weather sealing: Certain applications can use automatic door bottom seals as part of a broader door weatherstripping system.

Choosing a Pemko Automatic Door Bottom

When selecting a Pemko automatic door bottom, consider the door construction, available space beneath the door, required seal length, floor or threshold condition, and the type of sealing required.

Door bottom installation style is also important. Automatic door bottoms are available for different installation configurations, including surface-mounted and concealed or partially concealed applications. The correct style depends on the door construction and how the hardware needs to be installed.

Before ordering, review How to Measure for an Automatic Door Bottom to determine the dimensions and requirements for your application.

Pemko Automatic Door Bottom vs. Standard Door Sweep

A standard door sweep remains in contact with the floor as the door opens and closes. An automatic door bottom retracts when the door opens and drops down when the door closes.

This retractable operation can be useful when continuous contact with the floor is undesirable or when a cleaner, more controlled sealing action is needed. If you are unsure which type of door bottom is appropriate, see Which Automatic Door Bottom Is Right for Me?

Pemko Door Bottoms for Sound and Weather Sealing

Automatic door bottoms are commonly used as part of a complete door sealing system. Depending on the application, the bottom seal may work together with perimeter weatherstripping, a door threshold, or other door hardware to close gaps around the entire door.

For additional information about automatic door bottom construction, applications, and installation considerations, see About Automatic Door Bottoms.

If your door uses a threshold or saddle, review our Door Thresholds and Saddles for related options.

Why Choose Pemko Automatic Door Bottoms?

Pemko automatic door bottoms are designed for applications where a retractable seal is needed beneath the door. The available sizes and finishes make it possible to select a door bottom based on the door, installation requirements, and appearance of the finished hardware.

For additional automatic door bottom options, you can also compare Zero Automatic Door Bottoms, Barzen Automatic Door Bottoms, and TMH Automatic Door Bottoms.

Frequently Asked Questions About Pemko Automatic Door Bottoms

What is a Pemko automatic door bottom?

A Pemko automatic door bottom is a retractable door seal installed at the bottom of a door. The seal extends when the door closes and retracts when the door opens to help seal the gap beneath the door.

What does a Pemko automatic door bottom seal?

Depending on the application and selected product, an automatic door bottom can help control sound, air, light, dust, and weather infiltration beneath a door.

Is a Pemko automatic door bottom the same as a door sweep?

No. A standard door sweep generally stays in contact with the floor as the door moves. An automatic door bottom retracts when the door opens and extends when the door closes.

Can automatic door bottoms help with soundproofing?

An automatic door bottom can help with sound control by closing the gap beneath the door, which is an important part of reducing sound transmission through door openings. The overall result also depends on the door, frame, perimeter seals, threshold, and other components of the opening.

How do I choose the correct Pemko door bottom?

Consider the door construction, installation method, door width, bottom gap, floor or threshold condition, and the type of sealing required. Use our automatic door bottom measuring guide before selecting a product.

Do automatic door bottoms retract?

Yes. The defining feature of an automatic door bottom is its retractable sealing mechanism. The seal drops when the door closes and retracts when the door opens.

Shop the available Pemko automatic door bottoms above and select the size and configuration that fits your door application.