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Enter how many rabbits will share the hutch, the floor space per rabbit you want to allow (12 square feet is a common figure for a medium rabbit, 8 for a small breed, more for large breeds), and the hutch width you can fit. The calculator returns total floor area and the hutch length needed at that width, so you can check it against your garden or room before building or buying.
Hutch sizing starts from floor area per rabbit, multiplied by rabbit count. Four rabbits at 12 square feet each need 48 square feet in total. At 4 feet wide, that hutch must be 48 / 4 = 12 feet long. Six rabbits at 10 square feet each need 60 square feet, which at 3 feet wide is 20 feet long. Length follows from area and width, so if the length looks impossible, widen the hutch or split the group across two hutches rather than shrinking the space per rabbit.
Count only rabbits that will actually share the space, and use a space figure for the adult size of the breed, not the size of the young rabbits you bring home. Enter the width you can realistically fit, including door swing and cleaning access, and read the length. If the length is longer than your space, increase width, reduce the group, or buy two hutches: the answer is telling you the space is too small, and that is the point of calculating first.
Welfare guidance commonly starts around 12 square feet of enclosed hutch space per medium rabbit, plus a much larger exercise run, and more for large breeds such as French Lops or Continental Giants, which can need 16 to 24 square feet or more each. Small breeds manage on about 8 square feet. A 4x2 ft hutch is not big enough for most medium rabbits on its own. Height matters too: a rabbit must be able to stand fully upright on its hind legs and stretch out flat, which usually means at least 2 feet of internal height, and more for large breeds. A hutch that meets the floor figure but is too low still fails the rabbit. Cage size by weight is another method some guides use, roughly 2 square feet per pound as a minimum and 3 as an ideal, which points the same way for a 4 to 6 pound rabbit. Minimum hutch dimensions, indoor enclosure size, welfare space requirements and hutch plans all use the same chart of floor area by breed size, so check the chart before buying rather than trusting one headline number.
Two rabbits at 12 square feet each need 24 square feet, which is a 6 × 4 foot hutch. Four rabbits at 12 square feet each need 48 square feet, which is 12 feet long at 4 feet wide. Six rabbits at 10 square feet each need 60 square feet, which is 20 feet long at 3 feet wide, or 15 feet long at 4 feet wide. In practice, groups of more than 4 rabbits are usually split across hutches, because one very long hutch is hard to clean and hard to divide if rabbits fall out with each other.
The hutch is the bedroom, not the whole home: rabbits also need a secure run for daily exercise, ideally several times the hutch floor area, with grazing, hiding and digging opportunities. Small breeds such as Netherland Dwarfs manage on less floor area than the figures above, while large breeds need more, and bonded pairs need space to move apart as well as together. Never house unneutered males together, and introduce any new pairing gradually in neutral space, whatever the hutch size. The classic welfare standard is a 6x2 hutch with an 8x4 run, permanently connected, giving 60 square feet in total. A Flemish Giant hutch size needs to be larger again, with 24 to 30 square feet of hutch floor and a taller run, because giants cannot stand or stretch in a standard 2 foot high hutch.
Allow about 12 square feet of floor per medium rabbit, plus a large exercise run. Four rabbits therefore need about 48 square feet of hutch floor, for example 12 feet long by 4 feet wide. Enter your group above for an exact length.
Around 12 square feet of hutch floor per medium rabbit is a common welfare figure, 8 for small breeds and more for large breeds, plus daily access to a run. Height must let the rabbit stand upright and stretch out fully.
About 24 square feet at 12 square feet each, for example 6 feet by 4 feet, plus a run. Large breeds need more, so use 16 to 24 square feet each for them.
Bonded pairs and compatible groups can, if the hutch is sized for every rabbit in it and they have room to move apart. Unneutered males should not share, and any new pairing needs gradual introduction in neutral space.
At least 2 feet internally for most rabbits, so they can stand upright on their hind legs and stretch out. Large breeds need more, so measure your breed's standing height before buying or building.
Yes. The hutch is shelter, not the whole living space. Rabbits need daily exercise in a secure run several times the hutch area, with hiding places and things to chew and dig.
Up to a point, yes: more floor, height and run space all improve welfare. Beyond that, layout matters more than raw size, with separate sleeping, eating and toilet areas and safe access between hutch and run.
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