Manufactured in our Western Pennsylvania shop ,this unique metal corrugated roofing is great for adding that special touch to your personal scratch built buildings, mines, craft projects and structures. Each piece measures approximately 1 3/4" wide by 6" long. ( This 12 piece set will cover approximately 1 square foot of space). *This roofing is scaled best for O and G scale layouts. THIS IS MINIATURE ROOFING. THIS IS NOT FULL SIZE SHEETS OF CORRUGATED METAL.