The kit is of modular design which will allow the builder to assemble the structure in a number of different configurations. Approx 15" x 7" footprint. MORE PHOTO'S OF RAILROAD KITS BOILERMAKER'S. The item "Boilermakers by Railroad Kits Imagineering HO Scale Craftsman Structure RARE" is in sale since Monday, September 21, 2015.This item is in the category "Toys & Hobbies\Model Railroads & Trains\HO Scale\Parts & Accessories\Buildings, Tunnels & Bridges". The seller is "railroadkits" and is located in Holden, Massachusetts. This item can be shipped worldwide.