This is a 3d printed Garage Warehouse Building Workshop Wargaming Industrial 28mm Urban Lockup 3d printed in grey. (Any finished items, extra scenery like bases you see with paint are just purely for demonstration purposes only but can give you an idea of the look). 

This comes flat pack as several pieces: front wall, back wall, 2 x side walls, a roof you can slide into place or glue and a chimney for the roof. 

Advise being glued (apart from the roof) as it isn't freestanding without being glued together - it has easy to fit lugs and holes so you can't get anything in the wrong place. 

Dimensions approx: 

13cm Wide x 10.5m Deep x 7cm (tallest edge of the roof but not including the chimney)