Are you looking for the best extra large high-sided litter box options for your large breed cat? This post is for you! With both open and covered litter pan options to choose from, check out 15 extra-large litter box options with high sides below.

Photo by ©Svetlana Rey via Canva.com
Our Selection Criteria
When evaluating extra-large high-sided litter box options for this post we were on the lookout for the following big cat (and human) friendly features;
- Must be suitable for use by large cat breeds
- To be considered “extra large”, litter boxes should be at least 20″ long
- To be considered “high-sided”, litter boxes should be at least 10″ high
- All litter boxes should be easy to clean and ergonomically designed
- Litter boxes must receive consistently high customer ratings and reviews
- Easy access designs that accommodate cats of all ages preferred
For the purposes of this post, self-cleaning litter box models have not been included.
Extra Large Open-Top Litter Box Options with High Sides
Without further ado, check out our top picks for the best open-top extra large litter box options with high sides below;
Size:
Features:
25.5″ L
18.3″ W
10″ H
- Open top
- Extra large
- Sloped design
- Holds up to 30 lbs of litter
- Highly rated
- Affordable
24″ L
18″ W
10″ H
- Open top
- Extra large
- Easy access
- 2 colors available
- Recyclable, BPA-free
- Budget-friendly
20.5″ L
17″ W
10″ H
- Open top
- Extra large
- Sloped design
- Budget-friendly
- Highly rated
23.5″ L
15.5″ W
12″ H
- Open top
- Extra large
- Easy access design
- Non-stick surface never holds odor
- Easy to clean stainless steel
23.4″ L
18.25″ W
11″ H
- Open top
- Extra large
- Easy access
- Antimicrobial product protection
- Highly rated
22.2″ L
16.3″ W
11.3″ H
- Open top
- Extra large
- Sloped design
- Includes litter shield rim
- Built-in cat bag anchor
29.25″ L
19.15″ W
15.25″ H
*Longest open litter box on this list*
- Open top
- Extra large
- All-in-one litter box system
- Kit includes box, scoop, litter pellets, & cat pads
- Easy to clean
22.3″ L
16″ W
17.6″ H
*Highest open litter box on this list*
- Open top
- Extra large
- Flexible design
- Integrated handles and spout
- Easy to transport and empty
26″ L
16″ W
14.5″ H*
*with shelter wall add-on (sold separately)
- Open top
- Extra large
- Award-winning design
- Optional removable side walls (sold separately)
- Includes integrated tool insert for tidy storage and easy cleaning
- Non-slip base
- Highly-rated
Extra Large Enclosed Litter Box Options with High Sides
If your cat prefers the privacy of a covered/enclosed litter box (or you prefer not to see what’s in the box 24/7), check out these extra-large, high-sided enclosed litter box options instead;
Size:
Features:
25.13″ L
19.13″ W
11.75″ H
*Longest covered litter box on this list*
- Hooded, flip top design
- Built in odor neutralizers
- Large size
- Convenient carry handle
- Top removes for easy cleaning
20″ L
16.75″ W
15″ H
- Convenient flip top lid
- 3 lid positions (closed, half open, fully open)
- Modern design
- Includes scoop and reusable liner
- Highly rated
22.44″ L
19.69″ W
18.31″ H
- Extra large
- Integrated carbon filter for odor control
- Large opening for easy scooping
- Built in bag anchor and carry handle
- BPA-free
21.26″ L
16.3″ W
17″ H
- Extra large
- Top or front entry configurations
- 3 lid positions
- Reusable liner and scoop included
- Modern design
24.8″ L
20″ W
16.5″ H
- Extra large
- Rounded design
- Removable top for easy cleaning
- Multiple colors available
24″ L
18″ W
17″ H
- Extra large
- Hooded design
- Includes carbon filter for odor control
- Convenient carry handle
- 1 Year warranty
Other options to consider
If your cat doesn’t like enclosed litter boxes and the high-sided litter box options above still aren’t tall enough for your cat, you might like to consider attaching a litter box pee shield to your litter box for additional height.
Alternatively, you could “hack” a suitably sized plastic storage container to suit your needs, like YouTuber, Fundamentally Feline has done (linked).
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