I have an attic ladder installed and the door won’t close/seal completely. How do I fix it?
Measure the installed frame from corner to corner (diagonally). If the two measurements are within 1/8”, your frame is square. If your frame is not square, insert shims to square it. From inside the attic, check for obstructions when the door is closed. Check shims, installation, and cords to make sure nothing is interfering with the door shutting properly. Check the springs (or struts) of your ladder and make sure they are working correctly.