Extension for low-profile and high-dam 5.75" depth thresholds. Also fits outswing thresholds. Allows threshold to be used in applications where additional depth is needed (thicker walls like stucco, 2x6 framing, etc.). Select aluminum mill or bronze finish.
Threshold is customizable from 36.5" to 72.5" in width (in 1/2" increments). Shoul...
Reviews
4.1
30 ratings
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Popped into existing threshold without even removing. Fit gaping space perfectly and sealed my new storm door. Thank you.
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Sandra · August 21, 2026
I BOUGHT 3 INCH X 36 INCH AND I RECEIVED 2 INCH X 36 INCH
IM VERY DESAPOINTED.
A
Antonio · July 19, 2026
These are a great solution when most doors don't come with extended thresholds and nobody else seems to sell these and delivery was super quick and check out was easy