Mason Structural Steel LLC Return to Directory Business Name: Mason Structural Steel LLC Contact: Doug Shymske Phone: (800) 686-1223 Website: www.masonsteel.com Occupation/Trade: Fireplaces and/or Equipment, Skylights, Stone and Brick Veneer (man made), Structural Steel, Windows and Doors Category: Associate Address: 7500 Northfield Road City: Walton Hills State: OH ZIP Code: 44146