There are several attic ladders now available you should check out. Werner makes a square telescopic one for 2x2 scuttle holes as well as a 22x54. The best I've seen is the Rainbox, which has a scissor beam system and is available insulated with 1 or 2" of foam, a weatherstripping gasket and can take numerous types of sheathing to match the ceiling. Much more energy conscious. Contractor price runs about $580+ installation.

HTH

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