How To Measure For Attic Ladder

The rough opening for a full size attic ladder should be at least 22 5 by 54 inches.

How to measure for attic ladder.

That s dimensions between the framing of your attic joists which is typically 24 on center. Basic space requirements for an attic ladder. Measure the rough opening s width and length in three different spots at the top and bottom of the framing. Full size attic ladders usually need an opening in the ceiling that is at least 22 1 2 x 54 inches.

Floor to ceiling height. The next measurement will be for the length of the stairs. How to measure your attic ladder for a replacement step 1. Close the attic ladder up fully and place a stepladder underneath it.

Attic ladders are sized based on the rough opening. Measure and verify the ceiling height which is the distance from the finished floor to the finished ceiling. You ll need at least three critical measurements. 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.

Make sure you accurately measure your opening size floor to ceiling height as well as swing clearance and landing space so you select a ladder that will fit the space you have. Width dimensions of the ladder when installed on the attic s floor. Measure the width from the inside of the trim molding but outside of the attic ladder frame from the left side to the right side of the attic ladder frame. Looking for a space adequate to this opening is your first step.

Because an attic ladder goes into your ceiling it s important to make sure that your ceiling and surrounding area are appropriate for the ladder you are considering. Most attic ladders cover a range of ceiling heights so it s important to know the exact measurement you re working with. You can watch a video or read this short article about how to measure the rough opening for an attic ladder. Measure the length from the hinged side of the attic ladder frame to the opposite side of the attic ladder frame.

The rough opening is the length vs. The width and length of the rough opening and the ceiling height. Do not measure the inside of the box frame and as that is not a true rough opening measurement. But louisville ladder attic ladders range from classic size 22 5 x 54 inches.

First if there is an existing stairway measure from the outside to the outside of the existing box frame. Place your measurement along the edge so that your measuring tape stays in a straight line. Also make sure there is a suitable landing space in the attic so you can safely mount and dismount the ladder while carrying items. You can stand on the attic ladder to take.