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The Frost King UDB77W is a 36-inch thermoplastic slide-on door bottom designed for easy, tool-free installation. Its flexible sealing fins maintain a tight barrier against drafts and insects across all floor types, reducing energy loss by up to 95%. Customizable by trimming, it fits most standard doors, delivering durable weather protection with a sleek white finish.






| ASIN | B01IJ9P20Q |
| Batteries Required? | No |
| Best Sellers Rank | #301,429 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #249 in Thresholds |
| Brand | Frost King |
| Color | White |
| Customer Reviews | 3.8 3.8 out of 5 stars (897) |
| Date First Available | July 15, 2016 |
| Global Trade Identification Number | 00077578061818 |
| Included Components | Frost King UDB77W Thermoplastic Slide-On Door Bottom, 1-3/4in Wide x 36in Long, White |
| Item Package Quantity | 1 |
| Item Thickness | item_thickness.string_value Inches |
| Item Weight | 9.6 ounces |
| Item model number | UDB77W |
| Manufacturer | Thermwell Products Co., Inc |
| Material | Polyvinyl Chloride (PVC) |
| Number of Items | 1 |
| Part Number | UDB77W |
| Power Source | power_source_type |
| Product Dimensions | 2.38"L x 1"W |
| Recommended Uses For Product | Dog_toy |
| Shape | shape |
| Size | 36.5" |
| UPC | 077578061818 |
| Unit Count | 3.04 Feet |
| Usage | specific_uses_for_product |
H**G
No tools to install, floats to fit
Unlike other door sweeps, this slides on with no screws or other installation required. A good tight fit to the floor, and you can trim it easily to fit the width of your door. My apartment door had holes and even broken screws (sticking out about 2mm) from a previous door sweep. This one slid over it all tightly with a little help. White is pure white, not cream or bone colored. Sweep hugs the floor: will push any area rug out of the way when you open the door. Concerns: 1) a part of mine also wore off and broke away, as seen in other pictures. But the seal is still very tight. 2) if you have a faux wood laminate floor, with a slight texture to it, the soft foam part of this seal will squeak against that ridged surface when shutting your door, much like a violin bow across the strings.
A**S
Pretty happy about that
Overall it worked well for me, it reduced the draft under the door about 90-95%. Pretty happy about that! I needed this door draft stopper for my back exterior door. It worked well because the track width was wide and deep enough to grab on the bottom of the door and stay in place. The top of both sides of the track were high enough to fit nice and snug to the door. The only problem I faced was that it was a bit longer than my door and when I tried to close the door a bit too forcefully, I cracked the stopper at one edge. But that was my fault... lucky the crack was fairly small and I fixed it by cutting the stopper on one side to fit the size of my actual door. It seems to be hard and durable enough to do the job, but flexible enough to be cut and adjusted to size. I can see how some people would say that is flimsy... but is not that flimsy is just flexible to fit on different doors with different sizes. My door is pretty thick and I was worried it wouldn’t fit. I am glad it did. But I can see how a smaller thinner door would not work well with this stopper. However, I added a few screws through the door stopper and the door. Now is tightly and snuggly secured and I won’t be able to move it no matter what. Make sure you measure your door, but it works well with my door. I hope the pics and the review helped. It also came in a good packaging well protected and on time. I didnt give it 5 stars because all and all, it is made of a lighter material than I would like...
J**.
Effective and Easy to Install
I recently purchased the Slide-On Door Weatherstripping and I am incredibly impressed with its performance. Living in a colder climate, I was constantly battling drafts and struggling to keep my home warm. This weatherstripping has been a game-changer. The installation was a breeze as it can be easily cut to fit most doors, making it versatile and adaptable. Once installed, I immediately noticed a significant difference in the insulation of my home. It effectively prevents drafts and keeps the cold air out, providing a much more comfortable living environment. The slide-on design is convenient and ensures a snug fit, without the need for any adhesive or additional tools. I appreciate the simplicity of the product, as well as its effectiveness.
G**H
Used for 3 months and it was great. Kept the bugs and fl heat out
Used for 3 months and it was great. Kept the bugs and fl heat out. However, I have to give quality low stars bc within the he 3 months the glue came undone and it fell apart. I've since had to trash it and I'm very disappointed.
E**9
DO NOT BUY THIS PRODUCT.
Do not buy this. It set up easy enough, but it started falling apart after just a few times opening and closing the door. On top of that we already had to remove it from the door as it decided to start catching on the door frame to the point it was preventing the door from being closed, and again I reiterate this was after just a handful of times opening and closing the door. I am returning this as a defective product.
C**R
Great door bottom, works for specific types of doors
I bought this door bottom for my apartment door. I liked that it was slide-on because I rent and can't alter anything. There was a space between my door and the floor. I think it was because there wasn't a seam cover, so there was nothing covering the transition between wood and the outside floor. There was a ton of noise coming from outside of the hallway too, and I thought it would get drafty when winter came. This was perfect for my door. It slid on easily, was very snug and blocked the entire space under my door. It dampened the sound outside and sealed off the light from the hallway (see photo). So it was everything I needed. I did see a few reviews where people said it didn't fit or didn't work for their door. I think this door bottom was made for a certain type of door. I'll describe mine so it will be easier to get an idea if this will fit your door. - My door is 36" long. I still had to trim off a less than 1/4", even though my door was exactly 36". I think this is due to the variety of door frames. After I cut it, it fit perfectly. You won't be able to cut it with scissors, but a sharp kitchen knife or utility knife will do the trick. - My door is 1-3/4" wide. It was already quite a tight fit, so I don't think you can stretch it any further than that. You might be able to accommodate a 1-1/2" wide door, but I'm not sure if 1" will work. I think the door bottom works the best if it has a tight grip on the door. - I have hardwood floors. I don't think it will work as well on thick carpet, because there's a plastic piece in front and foam covered plastic piece in the back that has to scrape along the floor. Over time, carpet might put a lot of tension on that. I don't have any experience with carpet, though, so your results may vary. - The gap between the door and floor (before I put the door bottom on) was between 1/2" to 3/4". If your space is too small, the back foam piece would have to bend outwards more to scrape along the floor. If your space is larger, the door bottom won't be able to cover/seal the gap. Again, I thought this was a perfect fit for my door and many other doors, but you have to measure and make sure it will work for yours.
B**B
Sturdy and effective
Works great. Easy to cut to length. I just put it into my miter saw. Easy to attach to the door. If only I can get the damn cat to stop trying to eat it.
C**M
Wow, was this simple to install on our front door! No screws to hold it on - it just slid over the bottom of the door and is a snug fit so it won't fall off! Very nice product!
J**.
Empêcher le froid et les insectes de rentrer. Coupe bruit.
C**E
The outside foam piece didn’t last 2 days with our pets. The dogs assumed it was a toy and pretty much tore it right off.
C**.
Just recieved and installed min in less than 10 mins. Had to trim off about a 1cm. Used a Dremel and it cut through like butter. About to order another one for our garage door!
A**E
After installation which is easy, the door would barely close or open without force. The seal it is replacing fit easily under the door.
Trustpilot
3 weeks ago
2 days ago