Many standard litter boxes are too small for adult cats. A cramped box can lead to cats going over the edge or avoiding the box altogether. Large, high-sided boxes give cats more room and help contain scattered litter and urine that hits the sides. This review looks at the Nature’s Miracle high-sided litter box and similar options, including what to check before buying.
The Short Answer: A large high-sided litter box can reduce mess and give cats the room experts recommend. Nature’s Miracle and similar boxes are affordable and widely available. The main thing to check is entry height, since a high entry can be hard for kittens, seniors and cats with arthritis.
Key Details
| Feature | Details |
|---|---|
| Type | Open high-sided litter box |
| Size | Large (check current dimensions) |
| Entry | Lower entry point on one side (varies by model) |
| Material | Plastic |
| Best for | Cats that dig vigorously, scatter litter or urinate high |
What It Is and How It Works
High walls keep litter inside when cats dig, and they catch urine from cats that stand tall or back up against the side. A lower entry on one side lets cats step in.
Size matters. Many experts suggest a box about 1.5 times the length of your cat, not counting the tail. Many standard boxes fall short of this for larger cats.
Open boxes are often preferred by cats over covered boxes, since they trap less odor and let cats see their surroundings. A high-sided open box offers some of the mess control of a covered box without the enclosed space.
Kittens, senior cats and cats with arthritis may struggle with a high entry, even with a cutout. Arthritis is common in older cats and often goes unnoticed. See senior cat care.
What We Like
- Reduces litter scatter
- Contains urine from cats that stand tall
- More room than many standard boxes
- Open design many cats prefer
- Affordable
Drawbacks
- Takes up more floor space
- Entry may be too high for some cats
- Plastic can scratch and hold odor over time
- May not fit in small bathrooms or closets
Litter Box Basics
Litter choice is only one part of good litter box habits. Feline behavior experts commonly recommend:
| Guideline | Why it matters |
|---|---|
| One box per cat, plus one extra | Reduces competition and accidents |
| Box about 1.5 times the cat’s body length | Gives room to turn and dig |
| Scoop at least once a day | Cats avoid dirty boxes |
| Unscented litter for most cats | Many cats dislike strong fragrances |
| Quiet, easy-to-reach locations | Cats avoid boxes near noisy appliances or in dead ends |
| About 2 to 3 inches of litter | Enough to dig without excess scatter |
If your cat suddenly stops using the box, a medical problem may be the cause. Urinary tract disease, kidney disease, diabetes and arthritis can all change litter box habits. See cat peeing outside the litter box and litter box basics.
Things to Consider Before Buying
- Measure your cat and compare with the box dimensions.
- Check the entry height for kittens or seniors.
- Measure the space where it will go.
- Plan to scoop daily and wash weekly.
- Make sure you have enough boxes for all cats.
Tips for Using It
- Put a litter mat at the entry.
- Replace plastic boxes that are heavily scratched, since scratches hold odor.
- Try a box in a second location before replacing your current one.
Who It Suits
| Good fit if… | Consider something else if… |
|---|---|
| Your cat scatters litter or urinates over the edge | Your cat has arthritis or mobility problems |
| Your cat is large | You have very limited space |
| You want an open box with more mess control |
Alternatives to Consider
| Option | How it differs |
|---|---|
| Large storage bin with a cut entry | Low-cost DIY option |
| Covered boxes | More privacy, but some cats dislike them |
| Low-entry senior boxes | Easier access for older cats |
Male cats that strain in the litter box and produce little or no urine may have a urinary blockage, which is an emergency. See urinary blockage in male cats.
When to Call Your Vet
Contact your vet if:
- Your cat avoids the box or goes elsewhere
- Your cat strains or cries in the box
- Your cat hesitates to step in or out, which may mean pain
Frequently Asked Questions
What size litter box does my cat need?
Many experts suggest a box about 1.5 times your cat’s body length, not counting the tail. Larger cats often need boxes bigger than standard sizes.
Is a covered or open litter box better?
Many cats prefer open boxes, which trap less odor and let them see around. A high-sided open box gives some mess control without a lid.
Is a high-sided box good for senior cats?
Only if the entry is low enough. Senior cats and cats with arthritis may struggle to step over high edges. See our signs your cat is in pain guide.
How often should I clean a high-sided litter box?
Scoop at least daily and wash the box with mild soap and water regularly, often weekly or every few weeks depending on litter type.
Can I make my own high-sided litter box?
Yes. Many owners cut an entry into a large plastic storage bin. Smooth the cut edges so they don’t scratch your cat.
How many litter boxes do I need?
A common guideline is one box per cat plus one extra, placed in different locations.
Will a high-sided box stop my cat spraying?
It can catch urine from cats that stand tall, but spraying is a behavior with many causes. Talk to your vet about spraying.
When should I replace a plastic litter box?
Replace it when it’s heavily scratched or holds odor even after cleaning. Scratches can trap bacteria and smells.
Pet Health Man is independent and isn’t paid by the brands we review. Product formulas, specifications and prices change, so check the current label or the manufacturer’s information before you buy.
This article is for general information only and isn’t a substitute for professional veterinary advice. If you’re worried about your pet’s health, contact your veterinarian or an emergency animal hospital.
