| Business | Phone |
| Home Lumber & Builders Inc 716 S Jefferson Ave, Mason City 50401 | (641) 424-4001 |
| Mason City Lumber Co 1501 N Federal Ave, Mason City 50401 | (641) 423-6643 |
| Mills Fleet Farm 3200 4th St Sw, Mason City 50401 | (641) 423-4474 |
| United Building Ctr 516 2nd St Nw, Mason City 50401 | (641) 424-4952 |