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🚪 Seal smart, live comfortable — don’t let your garage miss out!
The M-D Building Products 03723 Garage Door Bottom Seal is a 9-foot long, premium black rubber strip designed to create a tight barrier between your garage door and floor. It effectively blocks drafts, moisture, dust, and insects while cushioning door impact to protect your door’s integrity. Easy to customize and install with included nails and washers, this durable seal remains flexible in extreme temperatures, ensuring year-round performance and a polished, finished look.











| ASIN | B000052035 |
| Best Sellers Rank | #15,994 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Weatherproofing Garage Door Seals |
| Brand | M-D Building Products |
| Brand Name | M-D Building Products |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 2,356 Reviews |
| Global Trade Identification Number | 00043374037234 |
| Included Components | Building Materials & Ladders;Doors;weatherproofing-garage-door-seals |
| Item Dimensions L x W | 108"L x 2"W |
| Item Thickness | 0.25 Inches |
| Item Type Name | M-D 0 Bottom Garage Door Sealer, 2 In W X 9 Ft L X 1 In H |
| Item Weight | 0.01 Ounces |
| Manufacturer | M-D Building Products |
| Manufacturer Part Number | 03723 |
| Manufacturer Warranty Description | Warranty |
| Material | Rubber |
| Material Type | Rubber |
| Model Number | 3723 |
| Number of Items | 1 |
| Product Dimensions | 108"L x 2"W |
| Recommended Uses For Product | Door |
| UPC | 043374037234 |
| Unit Count | 1.0 Count |
R**R
Superb Rubber Garage Door Seal
This seal is 100% rubber, not plastic, so it conforms well to the space under the door. It is just the right thickness to give a stiffness so it doesn't feel flimsy, yet it can be easily handled for installation. The nails have a spiral along the shaft so they won't pull out as easily as smooth nails. The plastic "washers' have a large diameter that will keep the nails from tearing the seal. To cut the rubber seal to fit the door, a sharp pair of scissors works great. Installation can be done alone, but it goes more smoothly with two. Will know more in the winter if snow or ice will stick the seal to the cement, but the rubber's flexibility seems like it will keep that from happening. If this is not the case, I will update this post. The seal looks great on the door, making it look more finished, and we have already noticed it doesn't feel drafty in the garage anymore. We had a 1/8" gap below the door and this seal closes it perfectly. Our door is an "old fashioned" heavy manual lift type, and this seal also acts as a bumper to cushion the door when closing it, helping to protect the windowpanes. This seal is an excellent investment, will protect the door, and keep debris and animals out, and snow from blowing in. You will be pleased with this very high-quality garage door seal!
W**.
Easy to Install Garage Door Seal
This garage door seal is very simple and quite effective. The seal is high quality with virtually no water retention. You will have to have your door in a partially open position to attach the strip. The product installs easily and comes with the required nails and they include plastic washers to increase the holding area. I had to purchase the 16 foot long sealer since they did not advertise a 10 foot long strip that I needed. The strip provides a very thorough seal should have a reasonably long life in outdoor conditions. I would purchase this again.
S**5
Good looking replacement and a proper kit.
This M-D Building Products 03723 9 ft. Black Rubber Garage Door Bottom Seal was a good replacement for my worn out (as in torn up) garage door bottom seal. The seal itself is just a tad longer than 9 feet, so it is perfect for a 9 ft. door. The installation was easy, in particular, because it comes with the nails and plastic washers needed to attach the rubber strip to your garage door. One recommendation to the manufacturer would be to increase the nail/washer count by one so that the distance between nails is an easy 6 inches, and not some odd amount.
D**E
Easy installation
Easy to install, looks nice!
J**N
Works great for windshield molding
Bought this to use as molding around my windshield to hide the clips showing on my 2010 Honda Civic. Was easy to cut and form to fit into the sides of my windshield perfect. It's been on for a few months now and no problems with it coming out while driving on the highway, no fading or cracking.
G**7
Very nice, thick rubber garage door bottom seal
Strong, great quality rubber extrusion. Perfect match to the bottom of my redwood garage door. Muc better than the locally available alternatives I found.
R**K
Depends how you want to use it
PROS: The price is VERY cheap & is actually pretty wide (other reviews complained about this) CONS: IF you actually use this as your only weather strip for the bottom of your garage door it provides little to no depth, thus water, wind, dirt, bugs and critters will still get in. Unless your garage floor is extremely level and your garage door is closed with downward & sustained force (not likely) there will be gaps. The strip is made of a rubber "like" material that has an almost spongy feel to it. The supplied nails do NOT look like the picture, they include a black plastic type washer, because the nails along would rip through the rubber "like strip. NOTE that almost ALL garage door bottoms are metal these days - so the nail are useless. I bought this NOT as a replacement for my current weather strip, but in the hopes of using a little of it as a CHEAP patch. I have a two car garage with a single door. On both ends there is a couple inch gap where my weather strip is short. It has been that way since I bought the house from the previous owner. I live in Florida & the other day I heard my wife yell - a snake was in our garage! Snakes are ALL around in Florida, this like most was a harmless garter snake but still not something you want to see - even in a garage. So as a quick/cheap fix I bought this. I cut this to length of my gap & tried attaching it to the bottom of the door. There was already on screw in the area I needed to patch so I started with that. I quickly learned that I needed a washer because my first attempt ripped right through the strip. My next problem was that I had to drill a starter hole in the bottom of the metal door plate which is quite thick. My 18V battery operated drill (or maybe the little drill bit I had on the end of it) were NOT up to the task. After 5 plus minutes of drilling with considerable pressure I barely put a mark in the door. The next idea I had was to somehow glue the piece on the door bottom. I tried just about everything. Double sided heavy duty mounting tape, a whole tube of Crazy Glue and even Mighty Putty which you are suppose to be able to use on rubber. Absolutely NOTHING will stick to this rubber "like" strip. So I ended up just cutting 3 piece on each end to length, stacked them on top of each other, sate them on the floor where the gap was & closed the door. On Monday I will just call in a garage door company and have them replace the whole thing. I would have rated it lower except it is a good price & may work for a select FEW people.
E**S
Easy to install
It was a fairly straightforward installation, took around 30 minutes to do but one issue we ran into was the tube inside just wouldn’t expand. It was kind of difficult getting it to a tube shape from the flat shape that it comes as.
L**N
MD Building Products
Excellent product! Easy to install and great quality too.
D**E
FITS AND DOES THE JOB PERFECTLY
FITS AND DOES THE JOB PERFECTLY. EASY TO FIT USED TECH SCREWS AS METAL DOOR. LOOKS GOOD FROM THE OUTSIDE.
D**N
Easy Install, Great Seal
I'm very pleased with this garage door seal. I've had it on my garage doors over the past winter. It was easy to cut, trim and install. It's in great condition and provides an excellent seal. The material used is different from the previous seal, which was rubber - this one is a heavier duty foam. Despite that, it seems to have quickly flexed and provides a softer close and better weatherstripping.
J**I
étanchéité à la poussière
pour une porte de garage basculante c'est parfait sauf les clous!!! Je me suis servi des rondelles plastiques que j'ai fixées avec de vis à tôle inox.
A**R
It is easily installed and affords a good seal at the bottom ...
This garage rubber door seal replaced an identical M-d seal which lasted 20 years. It was delivered ahead of the expected date slot for which thanks to the UK franchise handling this. It is made in Oklahoma USA from resilient rubber. It is easily installed and affords a good seal at the bottom of my garage door.
Trustpilot
1 day ago
2 weeks ago