Pipe Support Fabrication

haru87

I need advice on how to fabricate pipe support, in terms of how to cut out the required size(Highlighted in red) to fit the run pipe.

For example, the pipe run size is 4" sch 40 and the stanchion size is 3" sch 40. How do i calculate/mark out the desired shape & size on the support pipe?

Many thanks in advance!

Attached Images

pipe support.bmp (66.0 KB, 6 views)