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Grosvenor 78cm vs Grosvenor XL 100cm: Hamster and Rat Cage Sizes

Grosvenor 78cm vs Grosvenor XL 100cm: Hamster and Rat Cage Sizes

By Little Pet Warehouse | Published: 2026-11-04

Category: Vergleiche

Compare the Grosvenor 78cm and Grosvenor XL 100cm cages for hamsters and rats. See how floor space, bar spacing, and included accessories affect your choice.

Quick answer

Choose the Grosvenor XL 100cm if you want more floor space and a ready-to-use setup with a wooden shelf, ladder, and bowl. Choose the standard Grosvenor 78cm if space or budget is tight and you are housing a single hamster or a pair of small rats.

Floor space and height: what the dimensions mean for your pet

The Grosvenor 78cm measures 78 x 48 x 36 cm (L x W x H), while the Grosvenor XL 100cm measures 100 x 54 x 39 cm. The XL adds 22 cm of length, 6 cm of width, and 3 cm of height. That extra length matters most for rats, which often run along the cage rather than just up and down. Hamsters benefit from the wider floor too, but they also use height for climbing and burrowing.

Neither cage is tall enough for a deep substrate layer, so plan to provide a separate dig box or a cage with a taller base if your hamster is a dedicated burrower. The 36 cm and 39 cm heights are workable for hanging a wheel and a few platforms, but not for multi-level climbing frames.

Bar spacing: why 1cm suits hamsters and rats but not all small pets

Both cages use 1 cm narrow bar spacing. That is tight enough to keep most Syrian and dwarf hamsters from squeezing through, and it also contains young rats. However, 1 cm is wider than the spacing on some dedicated mouse or gerbil cages, so if you keep very small rodents, check their adult size against the 1 cm gap before ordering.

The catalog lists both cages as suitable for hamsters, rats, chinchillas, and other small pets. For chinchillas, the height may be limiting because chinchillas need vertical space and ledges; treat these cages as a starting point only if you can add safe ledges and supervised out-of-cage time.

What you get in the box: accessories and setup time

The Grosvenor XL includes a wooden shelf, ladder, and plastic bowl. The standard Grosvenor does not list those accessories in the supplied catalog facts, so budget for a shelf, bowl, and water bottle if you choose the smaller cage. The XL's included shelf and ladder give you a head start on creating vertical interest, but you will still need a wheel, hide, and water bottle for either cage.

Trade-offs to weigh before you buy

  • Space vs. room footprint: The XL gives 22 cm more length and 6 cm more width, which is a real gain for rats and active hamsters. But it also takes up more floor space in your home. Measure your table or stand before ordering; the XL is 100 cm long, so a standard 80 cm stand will not fit. If your stand is under 100 cm long, the standard Grosvenor is the safer fit.
  • Included accessories vs. lower upfront price: The XL costs more but comes with a wooden shelf, ladder, and bowl. The standard Grosvenor costs less but you will need to buy those items separately. Add up the cost of a shelf, ladder, and bowl before assuming the smaller cage is cheaper overall. Compare the total setup cost, not just the cage price.
  • Height for enrichment vs. ease of cleaning: The XL is 3 cm taller, which gives a little more room for a wheel and hanging toys. The difference is small, so do not expect a dramatic change in vertical space. Both cages have a similar open layout that makes cleaning straightforward. If you need significant height for climbing, look at a taller cage instead.

Product facts

Which cage fits your situation?

Best for

  • Rat owners who want more running length and a ready-to-use shelf and ladder.
  • Hamster owners with space for a 100 cm cage who want to add enrichment without buying every accessory separately.
  • Keepers who want a single cage that can house a small group of rats or a Syrian hamster with room to spare.

Not for

  • Homes with a stand or table shorter than 100 cm.
  • Keepers on a tight budget who cannot stretch to the XL price.
  • Chinchillas or other pets that need tall climbing space; choose a taller cage instead.

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