Kitty climbing staircase - Anytime you need to get your cat(s) from two points within your enclosure system where there is a height difference, stairs are a great choice! The dimensions of 2 step stairs are 12"W x 16"L x 30"H an offer 8" of rise/drop per stair step. So, for 2 stair steps, they can provide 16" of drop. The right and left side of the stairs is determined by facing the front (the bottom step towards you). All stairs come with cedar steps and two access points. Stairs will arrive fully assembled with access points/openings based on the configuration you choose.