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, 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