My cat used to sit on the windowsill for hours, just staring outside like it owed her something. That’s basically what pushed me to build her a catio two summers ago. I had zero carpentry background, a stack of YouTube tabs open, and a Saturday to burn. It turned out fine. Better than fine, actually. And it’s the reason I keep getting asked by neighbors, half-joking, whether I’m a professional cat enclosure builder now.
I’m not. But I’ve learned enough building and researching this stuff to walk you through it properly.
What Is a Cat Enclosure Builder?
Honestly, it’s whoever ends up doing the job. Sometimes that’s a company that shows up with a truck and a crew. Sometimes it’s you, on a ladder, questioning your measurements for the third time. There’s no license required, no test to pass. If you can frame a box and staple some mesh to it, you qualify.
DIY vs. Hiring a Professional Cat Enclosure Builder
I went DIY because I’m cheap and stubborn, in that order. It took me a full weekend and one trip back to the hardware store because I underestimated how much mesh I needed. If you’ve got the time and don’t mind a few mistakes along the way, DIY is genuinely satisfying. If you’d rather skip the trial and error and just want it done right the first time, paying a professional cat enclosure builder isn’t a bad call at all. There’s no shame in it.
Benefits of Building a Cat Enclosure
Safety, Enrichment, and Wildlife Protection
My cat’s enclosure isn’t fancy. Some shelves, a ramp, a spot where the sun hits in the afternoon. But she uses it every single day, rain or shine, and I don’t worry about her getting hit by a car or picking a fight with something bigger than her. It’s also kept her from bringing me “gifts” from the yard, which the local birds probably appreciate more than I do.
Types of Cat Enclosures
There’s more than one way to do this, depending on your space and how ambitious you’re feeling:
- Window Boxes – Small, bolted right onto a window. Good if you’re in an apartment and short on options.
- Catios – The most common setup. Basically a screened-in porch made for a much smaller tenant.
- Tunnel Systems – Mesh tubes running from a door or window out into the yard, so your cat can come and go.
- Freestanding Outdoor Runs – Bigger, standalone structures. Makes sense if you’ve got multiple cats and the yard to match.
Materials You’ll Need as a Cat Enclosure Builder
Wood vs. Metal Frames
I used wood because it was what I knew how to cut and screw together without a specialty tool. It does need sealing every year or so, which I sometimes forget until it starts looking rough. Metal frames cost more but skip that maintenance step almost entirely, which might be worth it if you’re not the type to keep up with yearly touch-ups.
Mesh and Netting Options
Don’t go with cheap chicken wire. I tried it first, and it bent the first time my cat leaned her full weight against it while chasing a moth. Hardware cloth held up much better and honestly wasn’t that much more expensive.
Step-by-Step: How to Build a Cat Enclosure
- Planning and Measuring – Walk the space first. Figure out where the sun lands and where the door needs to go so it actually connects to your house.
- Framing the Structure – This is the part that takes the longest and tests your patience the most.
- Adding Doors, Ramps, and Perches – The stuff that makes it a place your cat actually wants to hang out, not just tolerate.
- Weatherproofing – Seal the wood, think about shade, and make sure rain has somewhere to go instead of pooling.
Cost Breakdown: DIY vs. Professional Cat Enclosure Builders
My build ran me around $400, mostly wood and mesh, plus one wasted trip to the store. A basic window box can be done for under $150. If you’d rather hire a professional cat enclosure builde, expect somewhere between $1,500 and $5,000, depending on size and how nice you want it to look.
Maintenance Tips for Your Cat Enclosure
- Check the mesh and joints once a month. Small gaps get bigger fast, and cats are surprisingly good at finding them.
- Hose it down every so often so grime and mold don’t build up.
- Reseal the wood once a year. I usually do it in spring, whether it needs it or not.
FAQs About Cat Enclosure Building
How big should a cat enclosure be? Big enough that your cat can actually move around, not just sit. I’d say 6×6 feet minimum, more if you’ve got more than one cat sharing it.
Can I build a cat enclosure without any construction experience? Yes. I had none, and mine’s still standing two years later. Start with a simple design and go from there.
Do cat enclosures need a roof? Yes, no exceptions. Mine has a solid section for shade and mesh over the rest, which keeps hawks out and my cat in.



