As long as everyone is whipping it out and measuring, I figured I should chime in. My operation is fairly large, but somewhat inneficent, mainly due to my lack of time and mismanagement. But here we go.
I have:
4 X 6.5 gallon glass primary fermenters (for 5 gallon batches) - 20 gallons primary
6 X 5 gallon glass secondary fermenters - 30 gallons secondary fermenters
4 X 5 gallon kegs for lagering or as secondary fermenter - 20 gallons
4 X 5 gallon kegs for carbonating and serving - 20 gallons
I also have approximately 100 X 12 oz cap bottles 150 X 16 oz "grolsch" bottles and 50 or so swing tops of various sizes up to 1.5 litres. - Probably about 30 gallons
My chest freezer will only fit 7 kegs at a time, it would fit 8 if it was not for the CO2 tank. It also doubles as my kegerator, I have a two tap tower, with a seperate guages on the tank so I can carbonate some beers and serve others at various PSI.
My bottleneck occurs during my brew day, I can do 2 10 gallon batches in a day, but not much more than that, I got three out once but they were all extract. I spend way to much time cleaning and sanitizing, also I have to bring everything up and down the stairs to my basement which is a huge pain. I am having trouble figuring out a schedule, and usually only brew once or twice a month, I could go bigger and get about 120 gallons of beer in my place at a time during various stages of fermentation, but aside from the random bottles of stuff I am saving I have never had more than 9 or 10 - 5 gallon batches at one time.