Here at GDS we have compiled a quick reference guide showing the sizing of the Canon PRO-4000 and Canon PRO-4000S printer. They are both 44" printers, which are both the same size. The only differences between both printers is that the Canon PRO-4000 is a 12 ink printer and the Canon PRO-4000S is an 8 ink printer.
Hopefully this will help if you are thinking of buying a new Canon PRO-4000 or Canon PRO-4000S and want to know if you have the required room to house it and to install it in place initially.
Canon PRO-2000 dimensions