Our welders in Frisco Texas at My Thatch Roof custom make our metal bases to engineer approved standards adhearing to global building codes. We have several models availabe depending on your structures size: 
 
6x6 Square Post ----- Round Screw-In-Ready-Base 
4x4 Square Post ----- Round Screw-in-Ready-Base
6" Round Post Metal Base 
8" Round Post Metal Base
 
Our metal based make the construction and installation of any patio and outdoor structure simple and city inspection approved.