Top 10 DIY Cat Litter Box Ideas: Perfect for Small Spaces

My studio apartment was turning into a feline battlefield. My energetic tabby, Whiskers demanded vertical space, climbing surfaces, and a litter situation that didn’t scream “cramped chaos.”

As a fellow small-space dweller, I get the struggle of creating a functional, stylish home that doesn’t look like a cat tornado just rolled through.

I knew I was getting myself on a serious mission. And there are a lot of cat lovers who are in the same boat. I came up with the following 10 DIY cat litter box ideas that will keep your little furry friend happy while being space-friendly at the same time.

Bathroom DIY Cat Litter Box Ideas

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Your bathroom can become a five-star restroom experience for your feline overlord. I’m talking about a DIY cat litter box that’s part secret agent, part interior design dream.

Start with an unused bathroom cabinet. Remove the bottom shelf, create a cut-out entrance for your cat, and line the interior with waterproof, easy-clean material.

Pro tip: use a dark-colored liner that hides… let’s say, “evidence” better than a light shade.

What You’ll Need:

  • Old bathroom cabinet
  • Jigsaw
  • Waterproof liner
  • Sandpaper
  • Paint (optional, but recommended)
  • Ventilation grate
  • Measuring tape

The Process:

  1. Measure your cat (seriously, they hate tight spaces)
  2. Cut a smooth, rounded entrance
  3. Sand edges to prevent injuries
  4. Apply liner
  5. Add a small ventilation grate
  6. Optional: Paint to match your bathroom

The result? A concealed DIY cat litter box that looks like a chic bathroom fixture. Whiskers gets privacy, you get style. Win-win.

Bench DIY Cat Litter Box Ideas

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Here’s a DIY cat litter box hack to make your space look like a design magazine spread with no cat chaos.

We’re turning a simple bench into a covert litter headquarters.

Your Bench Transformation Toolkit

  • Wooden bench (thrifted or new)
  • Jigsaw
  • Sturdy hinges
  • Waterproof liner
  • Ventilation grate
  • Sandpaper
  • Paint or wood stain

The Sneaky Setup

  1. Measure your cat
  2. Cut a smooth entrance on the side of the bench
  3. Install a hinged top for easy cleaning
  4. Line interior with waterproof material
  5. Add subtle ventilation
  6. Sand all edges (no cat-astrophic injuries!)
  7. Paint or stain to match your decor

The result is a bench resembling chic furniture but secretly houses your cat’s throne. Whiskers gets privacy, you get style points. It’s like a magic trick with fewer rabbits and more cats.

Balcony DIY Cat Litter Box Ideas

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Your balcony will become the most epic DIY cat litter box zone that’ll make your neighbors double-take. We’re talking about a space that’s part cat paradise, part design masterpiece.

The Balcony Litter Box Survival Kit

  • Weather-resistant storage container
  • Drainage system
  • Waterproof liner
  • Covered top
  • Non-slip mat
  • Drainage rocks
  • Outdoor-friendly litter

The Genius Setup

  1. Choose a large, sturdy container with a lid
  2. Drill drainage holes (cats hate wet paws)
  3. Create a raised platform with drainage rocks
  4. Install waterproof liner
  5. Add a non-slip mat for comfort
  6. Cut discreet entrance
  7. Weatherproof the entire setup

Pro Tip: Position near the balcony wall for maximum privacy and wind protection. Your cat gets an outdoor bathroom experience, and you get a conversation-starting piece of feline furniture.

Closet DIY Cat Litter Box Ideas

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Your cluttered closet is about to become the most epic DIY cat litter box sanctuary that screams “I’m a genius” louder than your cat’s midnight zoomies.

The Closet Litter Box Survival Kit

  • Unused closet space
  • Removable shelving
  • Waterproof liner
  • Ventilation grate
  • Motion sensor light
  • Sliding door or curtain

The Sneaky Setup

  1. Clear out one closet section
  2. Remove bottom shelf
  3. Install smooth, cat-friendly entrance
  4. Add a waterproof, easy-clean liner
  5. Create subtle ventilation
  6. Install motion sensor light
  7. Add sliding door for discretion

Pro Tip: Position the litter box away from hanging clothes. Your cat gets a private bathroom, and you get a clutter-free, design-forward solution that makes other cat parents jealous.

Outdoor DIY Cat Litter Box Ideas

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Prepare for the ultimate outdoor bathroom revolution! Your backyard is about to become a feline fortress of privacy and comfort.

The Outdoor Litter Box Survival Kit

  • Weather-resistant storage container
  • Drainage system
  • Waterproof tarp
  • Covered top
  • Non-slip mat
  • Outdoor-friendly litter
  • Weatherproof sealant

The Epic Setup

  1. Choose a large, sturdy container with a tight lid
  2. Create a raised drainage platform
  3. Drill strategic drainage holes
  4. Install waterproof liner
  5. Add a non-slip comfort mat
  6. Cut discreet, sheltered entrance
  7. Seal all potential water entry points

Location Matters

  • Semi-shaded area
  • Protected from direct wind
  • Away from high-traffic zones
  • Near natural cat paths

Pro Tip: Camouflage with the surrounding landscape. Your cat gets outdoor bathroom luxury, you get design points.

Litter Box Ideas for Multiple Cats

Multiple cats mean multiple litter box drama. Before I cracked the code to create a multi-cat bathroom paradise, my home looked like a litter box obstacle course.

The Multi-Cat Litter Box Commandments

  • Follow the “n+1” rule (Number of cats + One Extra Box)
  • Spread boxes across different zones
  • Use varied box styles
  • Create privacy barriers

Strategic Placement Hacks

  1. Basement: Large communal box with dividers
  2. Bathroom: Enclosed cabinet boxes
  3. Living Area: Hidden side table solutions
  4. Bedroom: Discreet closet installations

Pro Survival Tips

  • Use different litter types
  • Clean frequently
  • Consider automatic self-cleaning boxes
  • Create vertical separation between boxes

More DIY Cat Litter Box Ideas

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closet cat litter box
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bathroom cat litter box
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indoor cat litter box
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indoor cat litter box
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