So..... I finally got around to converting Feldons Calculator in to Metric.
Me being me I could not just stop at the standard calculator that Morgan had. I reveal to you the new and improved Feldon's BBQ Pit Calculator - Metric edition 2.0. No more converting to US Imperial and back again.
http://cqsmokers.com/pitcalc.html
The page now allow for building an oversized firebox by percentage. And also gives you starting dimension for square, rectangular and round fireboxes.
I have tried multiple times to contact Morgan Feldon by email with no response. So hopefully that means he is okay with it or doesn't care.
If anyone has any suggestions or problems, let me know. brent@wesley.email
Thanks