Hello all, I'm new round here so let me take a second to introduce myself. My name is Chris and I'm located across the pond in the town of Cambridge, UK. I've been dabbling with bbq for sometime now. And due to the lack of availability here I want to build my own vertical smoker. The build diaries posted on here are amazing and I've found them deeply inspirational. I'd like to try a backwoods style cabinet for which I've found some awesome plans. I wonder If I could ask how you calculate the size for the smoke raceways? The only calculators I can find seem to be for RF for a horizontal offsets. Any pointers would be greatly appreciated. Cheers and have a good one. Chris.