M-D Building Products 11821 3-3/4 in. x 3/4 in. x 36 in. Black Aluminum and Vinyl Heavy-Duty Low-Profile Threshold
M-D Building Products 11821 3-3/4 in. x 3/4 in. x 36 in. Black Aluminum and Vinyl Heavy-Duty Low-Profile Threshold
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M-D Building Products

M-D Building Products 11821 3-3/4 in. x 3/4 in. x 36 in. Black Aluminum and Vinyl Heavy-Duty Low-Profile Threshold

4.8 stars out of 67 reviews
(4.8)|
67 ratings
M-D Building Products 11821 3-3/4 in. x 3/4 in. x 36 in. Black Aluminum and Vinyl Heavy-Duty Low-Profile ThresholdM D Building Products 11821 3 3 4 in x 3 4 in x 36 in Black Aluminum and Vinyl Heavy Duty Low Profile ThresholdM D Building Products 10116 3 3 4 in x 3 4 in x 36 in Brown Aluminum and Vinyl Heavy Duty Low Profile ThresholdM D Building Products 3 3 4 in W x 32 in L Mill Metallic Aluminum Deluxe Low ThresholdM D Building Products 09043 3 3 4 in x 3 4 in x 36 in Gold Aluminum and Vinyl Heavy Duty Low Profile ThresholdM D Building Products 49004 3 3 4 in x 3 4 in x 36 in Satin Nickel Aluminum and Vinyl Heavy Duty Low Profile ThresholdM D Building Products 43151 3 3 4 in x 3 4 in x 36 in Oak Aluminum and Vinyl Heavy Duty Low Profile ThresholdM D Building Products 08151 3 3 4 in x 3 4 in x 72 in Aluminum Silver ThresholdM D Building Products 08102 3 3 4 in x 3 4 in x 36 in Silver Aluminum and Vinyl Heavy Duty Low Profile Threshold
Size:36"
Actual Color:Black
selected, Black
Brite Gold
Bronze
Satin Nickel
Silver
Oak, Out of stock

Key item features

  • Durable Materials: Made of heavy-duty durable aluminum and flexible vinyl for long-lasting use.
  • Exterior Door Use: Ideal for replacing the threshold of exterior doors, enhancing protection.
  • Dimensions: Measures 3-3/4 in. W x 3/4 in. H x 36 in. L, fitting up to 32 in. doorways.
  • Black Finish: Features a sleek black color that complements various door styles.
  • Protection Features: Protects against drafts, moisture, dust, and insects with its vinyl seal.
  • Easy Installation: Includes screws for installation and can be cut to desired length with a hacksaw and scissors.
  • Versatile Use: Suitable for use with new doors or replacing existing thresholds for improved sealing.
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Starting from $38.41

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4.8 out of 5 stars
stars67 ratings56 reviews
How item rating is calculated
  1. 5 stars88% (59)
  2. 4 stars9% (6)
  3. 3 stars0% (0)
  4. 2 stars1% (1)
  5. 1 star1% (1)

Reviews summary

Pros
  • : Made of durable and well-finished components.
  • : Forms a tight seal around screw holes.
  • : Comes with easy-to-follow directions.
  • : Made of heavy-duty aluminum with a rubber seal.
  • : Offers good value considering quality and construction.
  • : Included with the product and of good quality.
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Showing 1-3 of 56 reviews

Jul 2, 2025
Reviewer
Item details
Size: 36"
Color: Bronze
Sold and shipped byHome Design Hardware
5 out of 5 stars review

Verified Purchase

Excellent for closing gap

The seal is fantastic for one of my doors but doesn't fit under another because it hangs lower. This is best of you have a gap that needs closing but access is an issue. The soft parts are easier to traverse in a wheelchair than the taller lipped metal thresholds.

Incentivized Review
Helpful?5859ZS5ZG7PJ1876900612
Aug 16, 2025
anonymous
Top Reviewer
Item details
Size: 36"
Color: Bronze
5 out of 5 stars review

Verified Purchase

Threshold to garage

i bought wrong size but was able to trim and apply still. looks great and very easy to install . I purchased the bronzed black threshold.

Incentivized Review
Helpful?5859ZS5ZG7PJ1876900612
Dec 1, 2025
Tessa
Top Reviewer
Item details
Size: 36"
Color: Bronze
5 out of 5 stars review

Verified Purchase

Easy to install and fit perfect!

Incentivized Review
Helpful?5859ZS5ZG7PJ1876900612