The weatherproof seal on this threshold is formed when the face of the closing door bumps against a vinyl seal that is located on the side of the threshold.  Since the only critical height factor is that it must be higher than the gap below the door, installation is simple.  M-D Building Products offers a variety of bumper thresholds with multiple materials and configurations.
The weatherproof seal on this threshold is formed when the face of the closing door bumps against a vinyl seal that is located on the side of the threshold.  Since the only critical height factor is that it must be higher than the gap below the door, installation is simple.  M-D Building Products offers a variety of bumper thresholds with multiple materials and configurations.