Does anyone keep their piggies in rabbit shed?

IF I get a shed for my two bunnies, I assume it would be ok for the guinea pigs to be in there too? Obviously not free range with the buns, but I was thinking of putting a double decker hutch in, so the piggies could have the top level and the bottom level could be a bed for the rabbits. Does this seem ok? This way the rabbits still get the full floor space

my shed is split for the rabbits and guineas, heres my thread about it ..... http://forums.rabbitrehome.org.uk/showthread.php?t=143023
they are perfectly happy together in there though it is double wired between them to stop noses getting bitten

Yours is great! So I should be fine with the piggies in the hutch then