This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 This is a staircase I made to accompany tight spaces. Download these to put into your next house. They work naturally with a 10-foot span from floor to floor, however, resize to suit. I chose concrete, metal, and marble to give the stairs a classy look. NOTE: A little word for these stairs. There are 17 stairs in all. The upper floor is flush with the top step. Whatever is in black is what is supposed to be hidden and connected to your building. Upper floor railings are up to you This will prevent the staircase from looking akward. I can even see these stairs possibly stand in the foyer of a nice house. These look good in solid wood as well. That would make for a perfect at home or institutional library addition! Enjoy and please rate. In case you're interested, I have a cool page to check out on Facebook in the link below :)