Convenient wooden pet stairs Durable wooden construction with rich walnut finish Safety side rails for confident and safe use Easy-to-fold design lies flat for convenient storage Choose from available size options Overall dimensions: 24L x 16W x 20H in. (Large); 30 x 19W x 25H in. (X-Large)Stair tread dimensions: 15W x 6D & 4.75 in. apart (Large); 18W x 7.5D & 6 in. apart (X-Large). Help your pet reach new heights with the Solvit PupSTEP Wood Stairs. Constructed from durable wood these handy pet stairs feature a tasteful rich walnut finish that helps them blend to your home. The multi-step design is ideal for indoor use and features side rails for safe and confident climbing up and down. For convenient storage the stairs fold flat. Choose from a variety of size options for the stairs that best serve your pet's needs. About Solvit Products At Solvit the motto is No pet left behind. Offering a full line of ramps stairs strollers bicycle baskets trailers and other travel and mobility products Solvit considers the comfort of your four-legged friends. Your pets can travel with you with style and ease. Solvit products are designed to make life more comfortable and enjoyable for pets and their owners alike. Size: Large.