Walmart offers Petmaker Foldable Pet Stairs, 4 Steps for $24.30 (orig. $44.59) plus $5.99 shipping or free ship to store.

Product Description:
Help your pet get to their favorite comfy couch, chair or bed with the Fold-able Pet Stair by PETMAKER. The Fold-able Pet Stair is great for puppies, kittens and older dogs and cats that need a little help to get where they're going. Simply lock the Fold-able Pet Stair in place when in use or fold it for compact storage. You and your pet will enjoy the ease and convenience of Fold-able Pet Stair by PETMAKER.