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 10" to 36" in width (in 1/2" increments). Should ma
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After putting in a new door, the depth of the new threshold left a large uneven step up through the door. Adding on the threshold extension provided a broader, more level and safer landing.
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Kristi · September 28, 2026
Color and dimensions matched perfectly, but the aluminum on the barbed portion that locked the threshold extender in place was a fraction of a millimeter too thin, and so it didn't lock in as intended. I ended up having to run a bead of epoxy atop the barbs in order to secure it.
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James · August 31, 2026
When I ordered the threshold extension I assumed it would work on my door threshold but it didn't fit and I assumed I could return it but couldn't so things didn't go well I'm out $104.00