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Comp Door AM3 Threshold Technical Drawings


26 October 2026

These two drawings show the threshold options for Comp Door.

The AM3 Part M compliant threshold gives a low, gently sloping entrance for step-free access, while the AM3-70 is a more compact 78mm option.

Both drawings show the threshold height, drainage holes and recommended door clearance, so you can pick the right one for your doorway:

AM3 Part M compliant threshold:

Screenshot 2026-10-26 at 17.43.16

AM3-70:

AM3-70