This is a model railroad platform for N scale with a ramp at one side and a set of stairs in the middle. Assembling the support poles onto the platform and the roof on the supports requires glue. The overall dimensions are 25 mm wide, 180 mm long and around 35mm high at the ridge of the roof. All has been constructed with Tinkercad, so if you would like to tweak and enhance, please feel free to play and re-share: Roof: https://tinkercad.com/things/iqhl1ORaAgw Base: https://tinkercad.com/things/hW468qR47zS Supports: https://tinkercad.com/things/1SeRt7TMoI4 Picture is along Kato Unitrack, which has quite a high bedding and is the system we use at home. Using other systems you will almost certainly need a lower platform. Modification 12/27/2014: Platform base changed to save some material and print faster :)One file each for roof, platform and supports. Print two supports! Use some model builder glue to fix the supports to the base and the roof to the supports. Enjoy, build and share!