Well a rather large box, I decided to tidy up the storage scheme I was using and found a nice plastic box with lid. With careful packing I can get all the stands, rules etc in plus the planes. Also easy for transportation.
With the space I have I can fit in about 10 planes. Currently short of British ones, so have bought a Corgi diecast WW1 Sopwith (a little underscale) and two Spad XIII kits to make.