T Support bracket extension

[Wood Rat]

Hey guys.
I have to extend my pipe support bracket for my through the wall set up about 8 inches to accommodate the 18" selkirk through the wall pipe and T. My question is, can I use 1/4" x 2" bar to weld up a support extension or should it be thicker bar stock? I've got to support the T, 4 - 48" pipe pieces and the cap. The Selkirk T support bracket is thinner than 1/4" so I hope 1/4" thick is enough. Suggestions ? Thoughts? PS. This is all 6" pipe. UT series.

 

[Wood Rat]

This is what I have so far. I'll need to use the 18" pipe as the included 12" won't get me legal pipe stack clearance or clear my 4" overhang from the roof.

 

[begreen]

If welding up custom, I think I would use angle iron in a triangle frame to provide a rigid base for the tee.

Or block out for an extendable bracket. Duratech makes these solutions.