TY NYC!!! Didn't consider a homebrew from looking at a prebuilt!!! Sorry!!!
So a trip to Home Depot resulted in some 1/2" black pipe. Only need to get some hooks mounted still to hang the pans. I was back and forth between the 1/2" and 3/4". Talked to the area manager (he was the one who came to cut and thread the pipe) about what I was doing, and he stood on a piece of 1/2" without any issues.
I couldn't get a good pic with the rack standing, so laid it out on the ground.
When assembled the legs are perpendicular to the cross pipe.
The legs are 12" long on each side of the tee.
The posts are 6'.
The cross pipe is 4' between the tees, with a 6" piece on the outside of the tee.
It seems pretty strong. I did a few pull ups on it and it held up, so should be just fine for the cast iron.
Another project today was to see if my propane torch was hot enough to bend a 1/2" round steel rod. Actually fired up a second one which helped heat the rod up.
Here is the result:
First bend came out pretty good. Second one wasn't as good though, but it works!!! May try another attempt later this year to see if I can improve it. After cooling the bends with water, I used a scotch brite pad to clean up the triangle, and heated it up on the grill. Then seasoned it to prevent rust.
Has 3 different pitches, so it's not monotone like some of the pre-made ones.
Just need to make a striker now and buy some leather to hang the triangle bell.