Rubber Seal Garage Door Bottom: When to Choose a Garage Threshold Seal

A Garage Threshold Seal can help reduce rainwater, leaves and dirt entering through gaps beneath your garage door. When there is a gap between the door and the floor, unwanted water, debris and draughts can enter your garage.

Choosing the right rubber seal garage door bottom can help reduce these problems. Unlike a door-mounted rubber seal, a garage threshold seal is fitted directly to the floor, creating a raised barrier beneath the closed door.

WHAT IS A GARAGE THRESHOLD SEAL?

A garage threshold seal is a rubber strip installed along the floor where the garage door closes. It creates a raised barrier that helps reduce the amount of rainwater, leaves, dirt and debris entering beneath the door.

Formseal’s Floor Threshold Seal is suitable for domestic and commercial garage doors and can be cut to the required length.

A garage threshold seal can help with:

• Rainwater: Reduce water entering beneath the garage door.
• Leaves and debris: Help prevent dirt and leaves from blowing inside.
• Draughts: Reduce airflow through gaps along the bottom of the door.
• Pests: Help reduce potential entry points for insects and other small pests.

WHEN SHOULD YOU CONSIDER A GARAGE THRESHOLD SEAL?

Before choosing a rubber seal for your garage door bottom, check where the gap is located and whether the door closes evenly against the floor.

A garage threshold seal may be suitable if:

• Rainwater enters where the garage door meets the floor.
• Leaves and dirt regularly collect inside the entrance.
• There are small gaps beneath the closed garage door.
• You prefer a floor-mounted seal rather than one attached to the door.

Gap size: Measure the clearance beneath the door, including any variations along the floor.

A garage threshold seal should make suitable contact with the closed door without preventing it from operating correctly.

RUBBER SEAL GARAGE DOOR BOTTOM VS. GARAGE THRESHOLD SEAL

Both options help close gaps beneath garage doors, but they are fitted differently.

Rubber Garage Door Seal

• Attaches directly to the garage door.
• Uses a weather-resistant EPDM rubber insert held in an aluminium carrier.
• Can be fitted along the top or bottom of suitable garage doors.

Unsure whether a brush strip or rubber seal is best for your garage door?

Read our blog, Brush Strip vs. Rubber Garage Door Seals: Which is Best for Your Garage?, to learn more about the differences.

Garage Threshold Seal

• Attaches directly to the garage floor.
• Creates a raised rubber barrier beneath the closed door.
• Helps reduce water, leaves and debris entering at floor level.

The right option depends on your garage door, the size of the gap and the condition of the floor. If water is entering where the door meets the ground, a garage threshold seal may be a suitable solution.

HOW TO FIT A GARAGE THRESHOLD SEAL

Before fitting your garage threshold seal, measure the width of the garage opening and check where the closed door meets the floor.

1. Measure the opening: Measure the width of your garage door opening from brickwork to brickwork.
2. Cut the seal: Trim the threshold seal to the required length.
3. Prepare the floor: Make sure the surface is clean, dry and free from dust or grease.
4. Position the seal: Close the garage door and position the threshold against the inside of the door, with its thinnest edge underneath.
5. Apply adhesive: Mark the position, open the door and apply suitable polyurethane adhesive according to the manufacturer’s instructions.
6. Secure the seal: Press the threshold firmly into place and remove excess adhesive.
7. Allow it to cure: Leave the adhesive to cure for 24 hours before using the door as normal, following the adhesive manufacturer’s instructions.

Read our full Cutting and Fitting Instructions below:

Explore Formseal’s range of garage door seals, including rubber door seals and floor threshold seals, to find a suitable option for your garage.

You can also request a sample from us!