The layout is in N Scale, and the board size is 3.5 feet by 4 feet. Buildings are from Walthers and I used many other Woodland Scenic products. Total project time was 4 months. The kits are from Walthers, the Medusa Cement Company. Walthers Vulcan Manufacturing. Smaller building from Woodland Scenics the Sicken Tire Company, which I make into a casket company. Thank you once again. Sincerely, Dan Brennan