The Best Litter Box Materials for Rabbits
Rabbits need paper-based or wood pellet litter in their boxes—never clay cat litter or cedar and pine shavings, which are toxic to rabbits and can damage their lungs and livers. The safest choices are pelleted paper litter, aspen shavings, or compressed wood pellets made for small animals. Paper-based litters like Yesterday's News or Carefresh are absorbent, dust-free, and safe if your rabbit eats a small amount while grooming.
Pelleted litters made from recycled paper or wood compress urine into tight clumps, making cleanup easier and lasting longer in the box. They also control odor better than loose materials. Most rabbits adapt quickly to pellets because the texture is different from hay, which helps them understand the box is not a place to eat.
Avoid litters labeled for cats or marketed as "natural" cedar or pine—these smell appealing to humans but are genuinely dangerous for rabbits. Also skip clumping litters, which can cause blockages if swallowed, and avoid anything dusty, which irritates rabbit airways.
Key Takeaways
- Paper-based pellets or aspen shavings are the safest litter choices; never use clay cat litter, cedar, or pine.
- Fill the box 2 to 3 inches deep so your rabbit can dig and bury waste without scattering litter onto the floor.
- Layer hay on top of or next to the litter so your rabbit can eat while using the box, which matches their natural behavior.
- Scoop out wet spots and droppings daily, and replace all litter once or twice weekly depending on how many rabbits share the box.
- Rabbits often choose one corner of the box for urine; place a smaller litter box in that spot if they miss the main one.
How Deep to Fill the Litter Box
Fill the box 2 to 3 inches deep with litter. Rabbits dig and burrow naturally, and a shallow layer does not give them enough material to move around. A box that is too shallow frustrates them and leads to urine spraying outside the box onto the floor.
The depth also matters for odor control—a thicker layer absorbs more urine before it soaks through to the bottom. If litter is too deep (more than 4 inches), rabbits scatter it everywhere when they dig, and cleanup becomes harder. Three inches is the sweet spot for most rabbits and box sizes.
Adding Hay to the Litter Box
Layer hay on top of the litter or in a separate hay rack attached to the box. Rabbits naturally eat while they toilet, so placing hay right there encourages them to use the box consistently. Timothy hay, orchard grass, or meadow hay all work well—use whatever your rabbit eats as their main diet.
Some rabbits prefer a hay rack clipped to the side of the box so hay does not get soaked with urine. Others are happy with a loose pile on top of the litter. Watch your rabbit for a few days and adjust based on what they seem to prefer. Hay that gets wet or soiled should be removed daily and replaced with fresh hay.
Cleaning and Replacing Litter
Scoop out wet spots and droppings once daily. Use a small slotted spoon or cat litter scoop to remove clumped litter and feces without disturbing the whole box. This keeps the box fresh and prevents ammonia smell from building up, which can irritate your rabbit's respiratory system.
Replace all the litter once or twice per week, depending on how many rabbits share the box and how much they use it. A single rabbit in a large box may only need a full change once weekly. Two rabbits or a rabbit that urinates heavily may need a change twice weekly. Wash the box itself with mild soap and water during the full change, then dry it completely before refilling.
If your rabbit is not yet litter-trained and misses the box frequently, you may need to change litter more often to keep the surrounding area clean and to prevent your rabbit from associating the floor with toileting.
Dealing with Multiple Rabbits and Litter Boxes
If you have two or more rabbits, provide at least one litter box per rabbit, plus one extra. This rule comes from the same principle as multiple cat boxes—rabbits have preferences about where they toilet, and competition over a single box leads to accidents outside it.
Place boxes in different corners of the enclosure or room. Watch where each rabbit naturally goes; if one rabbit consistently urinates in a specific corner, place a smaller box there. Some rabbits are territorial about litter boxes, so separate boxes reduce conflict and stress.
What to Do If Your Rabbit Keeps Missing the Box
If your rabbit urinates or defecates outside the box despite having one available, the problem is usually one of three things: the box is too small, the litter is the wrong type, or the box is in the wrong location.
Start by making sure the box is large enough—your rabbit should be able to stretch out fully and turn around inside it. A box that is too cramped gets avoided. Next, try switching litter types; some rabbits dislike pellets and prefer aspen shavings, or vice versa. Finally, move the box to wherever your rabbit naturally goes. Rabbits often choose one corner of their space to toilet, and you need to put the box there, not where you think it should be.
If your rabbit is spraying urine on walls or furniture rather than missing the box, the issue is usually territorial marking, which is separate from litter training. Spaying or neutering often resolves this behavior.
Litter Materials to Avoid
Clay cat litter is toxic to rabbits and can cause serious digestive blockages if ingested. Cedar and pine shavings contain oils that damage rabbit livers and lungs, even in small amounts or over time. Clumping litters can form blockages in the rabbit's digestive system. Dusty litters irritate airways and can lead to respiratory infections.
Avoid anything scented or perfumed, which can mask health problems and irritate sensitive rabbit noses. Do not use newspaper alone without litter on top—it does not absorb urine well and becomes slippery and uncomfortable. Straw is also not ideal because rabbits eat it and cannot distinguish it from hay, which confuses their litter training.
Frequently Asked Questions
Can I use regular cat litter in a rabbit litter box?
No. Clay cat litter is toxic to rabbits and causes digestive blockages. Clumping cat litter is also dangerous if swallowed. Use only paper-based pellets, aspen shavings, or wood pellets made for small animals.
How often should I completely change the litter?
Replace all litter once or twice per week depending on how many rabbits use the box and how heavily they urinate. Scoop out wet spots and droppings daily. If ammonia smell is strong after a few days, change it more often.
What if my rabbit eats the litter?
Small amounts of paper-based litter are safe if swallowed during grooming. If your rabbit is eating large quantities of litter, switch to a less palatable option like wood pellets, or try a hay rack to redirect their eating behavior toward hay instead.
Do I need a litter box for each rabbit?
Yes, provide one box per rabbit plus one extra. Multiple boxes reduce territorial conflict and accidents outside the box. Place them in different areas of your rabbit's space.
Why is my rabbit not using the litter box?
The box may be too small, in the wrong location, or filled with a litter type your rabbit dislikes. Try enlarging the box, moving it to where your rabbit naturally goes, or switching to a different litter material like aspen shavings or pellets.