Tuff Shed Shed Galvanized Steel Floor Joist Foundation Supplier?

Shed Galvanized Steel Floor Joist Foundation Supplier? - tuff shed

I would like to build a 10 meter x 16 on my property on the low desert of California shed. It's a team here called TUFF behind the shed for you and all of its warehouses Steel 2x6 Floor beams system Glavanized Thay is on the floor. I would do the same, but by myself. I try to a vendor that can sell these galvanized steel beam floor system. Can anyone help? Thanks in advance! . . . SA