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Internet # 308085617

Model # 40718

Store SKU # 1003990442

DENY 1.75 in. x 36 in. Interior/Exterior Brown Vinyl Door Bottom Seals U-Shape Slide-On Under Door Seal

$23.57
  • Easy to install slide-on under door draft seal for exterior door
  • Heavy duty vinyl seal weatherstripping blocks bugs and noise
  • Vinyl insulation adjusts to seal 3/8 in. to 3/4 in. gap
  • View More Details

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Product Details

About This Product

Transform your home's energy efficiency and comfort with the DENY Heavy-Duty Screw-On Door Sweep. Crafted with a sturdy aluminum frame and a flexible vinyl insert, this premium door sweep provides an unbeatable shield against drafts, dust, and pests. Built to endure frequent use and harsh weather, it's perfect for both homes and businesses. The easy installation with pre-drilled holes ensures a snug, secure fit on any door. Enhance your insulation, reduce heating and cooling costs, and keep your space comfortable year-round. Choose the DENY Heavy-Duty Door Sweep for a practical, cost-effective upgrade to your home or office.

Highlights

  • Made of rigid and flexible vinyl
  • Provides seal between the bottom of the door and threshold
  • 36 in. L x 2 in. W x 1-3/4 in. H
  • Brown color
  • Seals to protect against drafts, moisture, dust and insects
  • Save on energy by sealing the bottom of the door to reduce loss of heat or air conditioning
  • Provides a physical barrier against bugs
  • Vinyl fins are permanently embedded with a natural abrasive
  • Compression fit holds firmly in place
  • Cut Under Door Seal with hacksaw to desired length
  • Fits standard 1-3/4 in. thick exterior door
  • No drilling or screws requried; does not damage door
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 308085617

Model # 40718

Store SKU # 1003990442

Specifications

Dimensions: H 1.75 in, W 1.75 in, D 2.375 in

Dimensions

Product Depth (in.)

2.375 in

Product Height (in.)

1.75 in

Product Length (in.)

36 in

Product Width (in.)

1.75 in

Details

Builders Hardware Product Type

Door Bottom Seals

Color Family

Browns/Tans

Color/Finish

Brown

Hardware Color Family

Brown

Interior/Exterior

Interior/Exterior

Location Type

Doors

Material

Vinyl

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

0

Questions & Answers

. what size gap will this product seal?
ByJul 20, 2026
1 Answer | 
Answer This Question

Thank you for reaching out. This will seal from a 3/8" gap to a 3/4" gap. Thanks

By|Jul 20, 2026


    My old seal is on the bottom of door, do I need to remove it first??
    ByJul 7, 2026
    1 Answer | 
    Answer This Question

    Thank you for reaching out. Yes, you need to remove the old seal first. Thanks

    By|Jul 13, 2026


      Will this product work for a gap of 1/4"? If not, what product will?
      ByNov 6, 2025
      1 Answer | 
      Answer This Question

      Thank you for reaching out. For that small of a gap, we would recommend one of our door sweeps. Item number 40716 is a Deny product that matches the color of this product you were interested in. Thanks

      By|Jan 16, 2026


        I need to cut this door seal down to 32". what is best way to do this?
        BySep 11, 2025
        1 Answer | 
        Answer This Question

        Hello, and thank you for your question. Using a hack saw would be the easiest way. Please refer to the instructions to ensure proper installation. Please call our customer service at 800-654-8454 if you have any further questions. Thank you, M-D Team

        By|Sep 24, 2025


          If this one, model #40717 is better at keeping bugs out, what does model #43336 do better? So that I can determine which is the better option for me.
          ByAug 6, 2025
          1 Answer | 
          Answer This Question

          Thank you for reaching out. 43336 is great for installation. It makes the process faster and easier while avoiding having to drill holes into a 1-3/4" wide door. 40717 is a better version of 43336 because it does everything, I mention that 43336 does, but also denies bugs. Thanks

          By|Aug 6, 2025


            Weather strip for 1-1/4 in. Wide door
            ByAug 2, 2024
            1 Answer | 
            Answer This Question

            Thank you for reaching out. We have a number of different options that will fit a 1-1/4" wide door. Item numbers 43816(L-shaped vinyl seal) and 43398(Interior light and sound seal) will both fit for example. Please call our customer service at 800-654-8454 if you would like to discuss other options. Thanks

            By|Aug 2, 2024


              will this work on a storm door?
              ByJul 5, 2024
              1 Answer | 
              Answer This Question

              Thank you for reaching out. Although this may work for a storm door it is not designed specifically for one. This fits 1-3/4" wide doors. Please see item number 19105 for an item that is more suited for a storm door. Thanks

              By|Jul 5, 2024


                Will this product cover a 1 1/2 inch gap between door and threshold?
                ByJul 3, 2024
                1 Answer | 
                Answer This Question

                Thank you for reaching out. This will seal up to a 3/4" gap. Please call our customer service at 800-654-8454 to discuss other options. Thanks

                By|Jul 3, 2024


                  Viewing 1-8 of 36

                  Customer Reviews

                  4.2 out of 5

                  • 4.2 out of 610 reviews
                  • 81% recommend this product
                  Filter by:
                  Showing 1-10 of 610 reviews
                  Don't Waste Your Money
                  Didn't even last 3 months before all the fins fell off. Clearly has not been quality tested for longevity or is able to withstand the typical function of a door, e.g. opening and closing. Installation was finicky. Cutting to the appropriate size with a clean edge was challenging, and it took a lot of effort to slide it along the bottom of the door. Will haunt you with a scar of ruined door paint. I recommend one of the sweeps that fits in the two kerf channels along the bottom of the door.
                  by
                  Response from MDBuildingProductsSupportDec 2, 2024
                  Thank you for your review. We hate to hear the product did not meet your expectations, please call our customer service at 800-654-8454 so we can discuss other options.
                    2 found this review helpful
                    It will eventually fall off.
                    If the sun hits it directly it will eventually fall off. Vinyl expands greatly due to heat. And then it will retain it's shape when it cools. Over time it will lose it's grip. you have to at least put a screw in the middle or it will fall off.
                    by
                    Response from MDBuildingProductsSupportSep 10, 2024
                    Thank you for your review. We hate to hear the product did not meet your expectations; we will pass your feedback on to our quality team to review.
                      • Recommended
                      2 found this review helpful
                      Fits most doors, you may have to do a little trimming to get the perfect fit, but was worth it.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      This slide on under door seal works great. Went on easy. I’m very happy with it.
                      by
                      • Verified Purchase
                      Bought one three years ago, lasted a long time. Time...
                      Bought one three years ago, lasted a long time. Time for a new one, works perfectly. Had a little sticker shock with the new price.
                      by
                      • Verified Purchase
                      3 found this review helpful
                      It fits snugly under the door and keeps out the drafts.
                      It fits snugly under the door and keeps out the drafts.
                      by
                      • Verified Purchase
                      • Recommended
                      I'm very pleased with this entry door seal! It's ALL vinyl, and is 36" wide but it can be easily ...
                      I'm very pleased with this entry door seal! It's ALL vinyl, and is 36" wide but it can be easily trimmed to fit doors that are narrower than 36". The cross-section is U-shaped, and it holds by compression against both sides of the door with no screws. Installation could not be easier. It simply slides onto the bottom of an opened door. I did not have to take the door off the frame to install it. It grips the door very tightly and I don't anticipate that it will need any adjustments in the future. It is very unobtrusive once installed. As shown in the picture I've posted, each of the fins that fit tightly against the threshold is coated with diatomaceous earth, a natural, completely non-toxic substance made up of the fossilized shells of tiny, aquatic diatoms. These abrasive particles form scratches on the exoskeletons of any bugs that manage to squeeze under the door seal and this damage kills them. It is completely safe for homes and will not harm pets or children.in any way. The installation instructions are very well written and anyone can install this door seal. The only tools needed would be whatever you use to take an existing door seal off, and then a hammer to coax the new seal into place since it becomes difficult to slide on in the last 8" or so. It is designed to fit doors that are 1-3/4" thick, which I believe is the standard thickness of an entry door.
                      by
                      Response from MDBuildingProductsSupportMay 14, 2019
                      Thank you for your review. We are glad to hear that you are enjoying your product!
                      • Recommended
                      5 found this review helpful
                      The 36” Deny Under Door Seal is embedded with diatomaceous earth that scratches the surface of in...
                      The 36” Deny Under Door Seal is embedded with diatomaceous earth that scratches the surface of insects that try to breach the barrier and consequently dehydrate and die. I was happy to read on the label that diatomaceous earth consists of fossilized shells of diatoms and occurs naturally. Installation was simple enough. I was able to remove the old, worn under door seal without removing the door -great! Our 36” door measures 34 3/8” and cutting the vinyl Deny Under Door Seal to size with a hacksaw as directed was as easy as described. I gently tapped the new Under Door Seal (Taller side facing indoors as directed) into place using a dead blow hammer. The Deny Under Door Seal withstood the tapping. The Under Door Seal does not require nails or screws to keep in place. The whole installation operation took less than 5 minutes with locating the hacksaw taking the most time. The lips of the Deny Under Door Seal are significantly higher than the original under door seal but I like the look and appreciate the extra protection for the door. I just painted an exterior door and replaced the under door seal with one that doesn’t have the higher lips and there are already scratches in the paint just above the seal. That Deny Under Door Seal should prevent that. I can’t believe I’m this excited about an under door seal and plan to buy more of them for other doors. This is a great product.
                      by
                      Response from MDBuildingProductsSupportMay 2, 2019
                      Thank you for your review. We are glad to hear that you are enjoying your product!
                      • Recommended
                      7 found this review helpful
                      The bottom of my side garage door has damage where interior material has rotted and fallen out. ...
                      The bottom of my side garage door has damage where interior material has rotted and fallen out. I got this under door seal/sweep to prevent moisture from making the situation worse. I used wood filler and spray foam to fill the space and installed the door seal. Installation took minutes and was very easy. It fit perfectly after trimming to length, is very sturdy, and covers the gap at the bottom of the door which should prevent further damage and bugs getting into the garage. It’s a good temporary solution because one day the door will have to be replaced.
                      by
                      Response from MDBuildingProductsSupportMay 14, 2019
                      Thank you for your review. We are glad to hear that you are enjoying your product!
                      • Recommended
                      3 found this review helpful
                      Showing 1-10 of 610 reviews

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                      Product Snapshot

                      Ideal for sealing exterior doors against drafts, moisture, dust, and insects, saving energy and providing a physical barrier against bugs.
                      Ideal for reducing light and sound under interior doors, with easy slide-on installation and adjustable seals for various floor types.
                      Ideal for customers who want superior weatherproofing, ensuring a clean, dry, and secure garage.
                      Ideal for customers who want to prevent shower leaks, ensuring a clean, beautiful bathroom.

                      Adjustable Height

                      Weather Resistance

                      Soundproofing Capability

                      Thermal Insulation

                      Insect and Rodent Barrier