Catio Bob can design and construct catios from the simple window catio to elaborate permanent walk-in types with connecting tunnels and walkways with water and electricity connections. Movable types are available as well. As for pricing, it will depend on the complexity and design of the catio. Catios can be constructed with a variety of materials from wood to aluminum to stainless steel. If you're interested in having a catio designed, built, and installed, contact Catio Bob and he will go through the interior options and material options.