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Tsunami Seal

Model # 51016

Internet # 202199772

16 ft. Gray Garage Door Threshold Kit

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

$75.95 /each




Model # 51016

Internet # 202199772

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

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Garage Door Part/Accessory Type 
Garage Door Seal 
Product Weight (lb.) 
8.8 lb 
Warranty / Certifications
Manufacturer Warranty 


Rated 4.6 out of 5 by 23 reviewers.
Rated 5.0 out of 5.0 by Garage door threshold This installed easily & solved the issue of water coming in under the garage door. The kit even included the glue and the caulking tool to install. September 15, 2015
Rated 5.0 out of 5.0 by Great Product The kit comes with everything needed to do it yourself. Everything is straight forward; easy install. My garage floor was not poured quite level and had some daylight on one end. Now the door seals completely. September 1, 2015
Rated 5.0 out of 5.0 by Tsunami garage door threshold kit I ordered 16 feet for my two 8 ft doors. Easy to cut to fit and caulking gun made it easy to spread the Tough As Nails (TAN) caulking. I followed the easy direction by rolling out the threshold strip inside our house to warm up and remove the curl and when I put it on the caulking it was perfect. 24 hours later both vehicles back in the garage and the rain seeping under the garage doors has stopped. A definite good buy. Hint use a screw driver to pierce the TAN caulking tube before you squeeze the caulking gun otherwise you will complain that the Caulking gun is cheap as others have complained. It worked fine for me. December 23, 2014
Rated 5.0 out of 5.0 by Garage Door Threshold Since we owned house (20 years) I have had problems each winter with rain/snow mositure coming into garage under door. I installed the threshold before winter arrived and I had no problem this winter and we had some severe storms. I'm am very pleased with your product and it was easy to install. Bill January 25, 2011
Rated 5.0 out of 5.0 by Tsunami Seal 16' Easy to install and works as advertised. I would buy this product again. January 6, 2015
Rated 5.0 out of 5.0 by Outstanding product Wow! For the first time in years, no water came in under the garage door when it rained! I only wish we'd done this sooner! The threshold was easy to install, the instructions were clear, and the materials provided were all that were needed. The only reason I don't rate installation "Excellent" is that a note should be added to the instructions to not use excessive adhesive -- just the 1/4" bead specified. We must have used too much, since we then had to work to get the "outside" lip down tight against the concrete. May 8, 2012
Rated 4.0 out of 5.0 by So far so good I put the threshold down this weekend and there was already heavy rain, but no water getting in. The bottom of our garage door has some bend spots that I could never quite fix. The threshold seems to do its job well. Very easy to install. The only negative is- I bought the gray threshold, but the liquid nails provided with the kit was a light brown and it shows up stark against the grey threshold and grey floor of my garage. If liquid nails makes a grey it would be nice to have that included in the kit. February 21, 2012
Rated 3.0 out of 5.0 by 16 ft. Gray Garage Door Threshold Kit Still a bit early to tell, hoping it prevents ice buildup in the winter. One problem we noticed is that while it does keep rain water from getting in, it also prevents water from getting out (i.e. when a car wet from rain drips on the garage floor). Also having a bit of an issue getting the garage door to close properly, have to play with the downward force and travel settings. All in all, Jury is still out October 4, 2011
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