Tsunami Seal

Model 53020

Internet #202199786

20 ft. Black Garage Door Threshold Kit

$78.86 /each

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Product Overview

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 in. 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 and a metal caulking gun and color installation instructions. Comes with a lifetime warranty.

California residents: see   Proposition 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 adhesive
  • Includes a metal caulking gun
  • Lifetime warranty

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Customer Questions & Answers

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Customer Questions & Answers

20 ft. Black Garage Door Threshold Kit
20 ft. Black Garage Door Threshold Kit

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does the product cut easy into 2 pieces?

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December 12, 2015
can i use the product for 2 single garage door openings
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December 13, 2015
It cuts easily with a utility knife, hacksaw or miter saw. The 20' can be use for two doors that are 10' or less.
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Customer Reviews

Rated 4.8 out of 5 by 19 reviewers.
Rated 5.0 out of 5.0 by Excellent Product My garage door leaked like a sive- I put on new rubber door sealers on the bottom that were to be super - and it still leaked, I found this product, installed it and now I have a dry garage when it rains! If your garage door leaks from underneath, get this product - it will solve that issue AND you dont even know it is there when you drive or walk on it!! July 12, 2016
Rated 5.0 out of 5.0 by Excellent Product This product installed easily and has been one of the best purchases we have ever made. We had to replace all the baseboards and some sheetrock in the garage due to water damage. After all the repairs we decided to epoxy the floors and install the Tsunami Garage Floor seal. We got a very heavy rain right after and there was no water on our floor. The seal stuck solid to the epoxied floor. We could have saved ourselves lots of money and labor with this one product. June 1, 2016
Rated 5.0 out of 5.0 by keeps the rain out Keeps the rain out and helps keep the door still from strong winds December 8, 2015
Rated 5.0 out of 5.0 by did what i needed it to It was easy to install, I only needed one tube of the glue. Product did what i needed it to do. November 11, 2015
Rated 5.0 out of 5.0 by Outstanding product Product was a little higher than others I looked at, however, I am a strong believer in, "you get what you pay for". This product was worth it. Did exactly what they advertise. I have had a leaking garage door for a couple years. After installing this product and having two very high yield storms roll through, was amazed at it's ability to keep all water out. Didn't find a drop the following morning. What a relief. September 15, 2015
Rated 5.0 out of 5.0 by Excellent solution to garage flooding. The garage floor had settled just enough to allow a minor flood after each rain. The threshold kit fixed the problem like magic. Was very easy to install; I did it myself in less than 1 hour (and I'm a senior citizen). Very pleased with this product. July 29, 2015
Rated 5.0 out of 5.0 by Excellent Product Our garage would always have standing water in it after a hard rain but once we installed the Tsunami seal we have had no further water in our garage. It's an excellent product...I wish I would have bought this years ago! It is absolutely worth the money, it was very simple to install, and we love it! July 7, 2015
Rated 4.0 out of 5.0 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
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