Build the ladder on its side.
How to build a wooden attic ladder.
Also make sure there is a suitable landing space in the attic so you can safely mount and dismount the ladder while carrying items.
Place the notched pieces face up across two sawhorses.
Measure the width of the attic frame piece to tap another nail by the same joist in the ceiling.
Fit the ends of the 18 inch two by fours into one of the notched two by fours to form half the ladder.
Go up to the attic and with a hammer tap a nail through the ceiling by the joist as a starting place to cut your rough opening.
Basic space requirements for an attic ladder.
How to build stairs.
Full size attic ladders usually need an opening in the ceiling that is at least 22 1 2 x 54 inches.
Easy steps diy staircase.
Homemade attic ladder with 4 sections.
Looking for a space adequate to this opening is your first step.
Cut one of the halves again but this time divide it up so that you have 2 3 of the ladder in one piece and a smaller piece.
Apply wood glue to the notches.