How To Measure For Installing Attic Ladder

Measure the rough opening s width and length in three different spots at the top and bottom of the framing.

How to measure for installing attic ladder.

How to install an attic ladder step 1. This may difficult to do by yourself so get someone to help you with taking this measurement. You may have to trim to fit. A step by step process to remove the old attic ladder and install a new one.

You can stand on the attic ladder to take. Measure the width and length of the attic access opening and compare the. How to install an attic ladder. Attic ladder sizing standard attic ladders fit an attic opening of 22 x 54 and if you wanna supersize it you can get one up to 25 x 66 in aluminum or 30 x 54 in wood.

Place your measurement along the edge so that your measuring tape stays in a straight line. Floor to ceiling height. Using a carpenter s square line it up from the point of the nail and draw out 22 1 2 inches. Measure and chalk a square measure 54 inches and tap the second nail next to the same joist image 1.

Choose a stair that fits into the smallest of these measurements and is long enough for your ceiling height. How to measure your attic ladder for a replacement step 1. Cut out the opening. Place your tape measure flush with the ceiling directly to the side of the attic ladder and drop the tape measure to the floor.

For smaller attic ladder openings with a minimum measurement of 18 x 24 you will need to measure from the finished floor to the attic floor. Snap a chalk line between the two nails image 2. So with a 24 on center and framing lumber being 1 1 2 thick the dimension between the inside edges of the two joists is 22 1 2 24 3 4 3 4. The next measurement will be for the length of the stairs.

Of course not every dwelling space has room for a full size access ladder. That s dimensions between the framing of your attic joists which is typically 24 on center. Make sure there are no wires pipes or ducts above the ceiling near the marked cutting. Close the attic ladder up fully and place a stepladder underneath it.

Measure and verify the ceiling height which is the distance from the finished floor to the finished ceiling. Attic ladders are sized based on the rough opening. Place a tape measure at the left side of the attic opening on the inside edge of any trim molding but the.