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

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

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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Current price is $47.85
Price when purchased online
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  • Free 30-day returns

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Sold and shipped by Supply the Home
4.310041134901382 stars out of 5, based on 18962 seller reviews(4.3)
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Customer ratings & reviews

4.8 out of 5 stars
stars75 ratings57 reviews
How item rating is calculated
  1. 5 stars89% (67)
  2. 4 stars8% (6)
  3. 3 stars0% (0)
  4. 2 stars1% (1)
  5. 1 star1% (1)

Reviews summary

Pros

  • : Installation process is easy to follow with provided guidance.
  • : Made of durable and well-finished components.
  • : Forms a tight seal around screw holes.
  • : Made of heavy-duty aluminum with a rubber seal.
  • : Has an attractive look that enhances the garage door's appearance.

Neutral

  • : Can be sturdy, but also prone to temperature conductivity.
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Showing 1-3 of 57 reviews

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
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
Apr 9, 2026
V
Item details
Size: 36"
Color: Bronze
5 out of 5 stars review

Verified Purchase

Heavy duty Threshold

This threshold was the perfect replacement in our remodel. Looks nice and is very sturdy. Good value.

Incentivized Review
Helpful?5859ZS5ZG7PJ1876900612