Raise a Door Threshold To Reduce Drafts

Those big screwheads in the threshold of a newer entry door arent just decorative; they raise or lower a narrow strip set in the threshold. So try this hack if youve noticed a draft under the door.

Adjust the Exterior Door Threshold

On a sunny day, turn off the lights and close nearby curtains. Lie down and look for daylight under the door. A sliver of light sneaking in at both corners of the door is normal. But if you see light between the threshold and the door, grab your screwdriver to begin how to replace a door threshold. Raise the threshold where light enters by turning the nearest screws counterclockwise.

Set a straightedge (such as a framing square) on the threshold and adjust the other screws to make sure the adjustable strip is straight. Close the door and check for light. Readjust the threshold until youve eliminated the light. But dont raise the threshold so high that it presses too hard against the weatherstripping on the door. A too-tight fit will wear out the weatherstripping quickly.

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