Tsunami Seal 20 ft. Black Garage Door Threshold Kit-53020 - The Home Depot

Tsunami Seal

Model # 53020

Internet # 202199786

20 ft. Black Garage Door Threshold Kit

Tsunami Seal 20 ft. Black Garage Door Threshold Kit

This item has been discontinued.
The Home Depot no longer carries this specific product.

$109.00 / each


Model # 53020

Internet # 202199786

The Tsunami Seal Garage Door Threshold Seal mounts to your garage floor creating the perfect seal between your door and your garage floor. The Garage Door Threshold Seal creates a tight seal for your garage door which will keep leaves, dirt, water and snow from being blown under the garage door by the wind. Also, if you have a sloped driveway or an uneven garage floor and water is seeping under your garage door, the Door Seal adds a 1/2 tall barrier to the garage floor. The Door Seal will also help keep out unwanted insects and snakes. By creating a better seal, your garage will stay warmer during the winter and cooler during the summer, helping to keep your energy cost down. The Door Seal works great with all types of garage doors including roll up doors, hinged wood doors and walk through doors. The one piece strip is permanently secured to the garage floor with the included Liquid Nails Polyurethane Adhesive. Each kit includes the one piece Threshold Seal, two cartridges of Liquid Nails Ultra DutyTM Poly Adhesive, a metal caulking gun and color installation instructions. Comes with a Lifetime Warranty.

California residents: seeProposition 65 information

  • Creates a barrier against water, leaves, dirt and snow
  • Keeps out insects, snakes and rodents
  • Garage stays warmer during the winter and cooler during the summer
  • Helps to save energy
  • Works with roll up doors, hinged doors and walk through doors
  • Includes two cartridges of liquid nails ultra duty poly tm adhesive
  • Includes a metal caulking gun
  • Lifetime warranty

Info & Guides

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Assembled Depth (in.)  3.5 in  Assembled Height (in.)  0.5 in 
Assembled Width (in.)  240 in 
Garage Door Part/Accessory Type  Garage Door Seal  Hazardous Code 
Product Weight (lb.)  11 lb  Returnable  90-Day 
Warranty / Certifications
Manufacturer Warranty  Lifetime 


Rated 4.8 out of 5 by 12 reviewers.
Rated 5 out of 5 by Easy to install threshold Directions were easy to read and had no problems. The threshold is very sturdy. November 3, 2014
Rated 5 out of 5 by Great solution to garage door leakage Super easy to install and I haven't had water in the garage since! October 21, 2014
Rated 4 out of 5 by Tough Material! This material is tough to cut which is a good thing. It is some well made stuff. I cut this for 2 garage doors. One tube of liquid nails did these 2 doors and another door so I never needed to use the 2nd tube or the tube that came with the 10 footer. The only issue I had (again because of the great quality) was the corners wanting to roll down and leave a small hump. That was quickly remedied by cutting a board to size, laying it across the threshold and bringing down the garage door. It is a little expensive, but worth it. September 16, 2014
Rated 5 out of 5 by Looking for a way to keep water out of my shop, this stuff worked as advertised! Very easy installation. After reading the previous reviews I did not even try to use the caulking gun that came with the kit. Two tubes was just barely enough for the 20' kit, another tube would have been nice. It has worked great keeping the water out of the garage and I would definitely this kit. If you plan to use the whole 20' kit get an extra tube of liquid nails to make sure you don't run short. July 8, 2014
Rated 5 out of 5 by Great Product This more than lived up to my expectations. Installed in less than an hour. Threshold withstood driving rain from hurricane Sandy, not a drop of water got under the garage doors. Very cheap caulking gun, and don't bother with the liquid nails that is provided, mine was dried up and useless, just spend a few dollars and buy some at the store . November 8, 2012
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