Circle Thru-Wall Cat Tunnel

Circle Thru-Wall Cat Tunnel is a custom-designed doorway for your feline explorer, turning an ordinary wall into a private passage between rooms. Built with a cat’s curiosity in mind and a nod to practical home design, this tunnel delivers safe, controllable access without sacrificing style or safety for your pets.

Smart, pet-first design you can trust

Crafted from premium, eco-friendly and non-toxic materials, the Circle Thru-Wall Cat Tunnel emphasizes durability and peace of mind. The lightweight yet sturdy frame is 3D printed and assembled in three pieces—two flat circle plates and a tunnel connector—making installation straightforward while keeping the structure robust for daily use by energetic felines.

Key dimensions and fit are purposefully aligned with common residential walls: the tunnel slides through a standard wall built with 2x4s and 1/2" drywall. The opening has a 6.25" diameter, with a 5" depth inside the wall when assembled, and about 4.5" of overall depth from the room side. This configuration gives your cat an ample, secure space to pass through while staying comfortably within typical wall cavities.

• Three-piece construction: 2 flat circle plates + 1 tunnel connector
• Hole diameter: 6.25"; wall-depth penetration: ~5" when assembled
• Overall depth: ~4.5" from the room side
• Fits standard 2x4 walls with 1/2" drywall
• 3D printed with eco-friendly, non-toxic materials

Unique features that matter to real homes and real cats

This is more than a toy—it's a practical solution for homes with dogs or other limited access concerns. The tunnel enables your cat to slip into a closet or food/litter area for quiet time, while keeping dogs from easily following. It’s the perfect balance of exploration and containment, helping your cat stay independent and comfortable in a multi-room layout.

The design is intentionally simple to adapt to everyday living. The 3-piece assembly is secured with 10-24 x 1" machine screws, using black or white screws that can be color-matched to your install. If you order other colors, you’ll receive standard stainless steel silver screws; you can paint them afterward to blend with your decor. The rainbow color pattern printed on your unit will vary because filament color varies with each print, making every Circle Thru-Wall Cat Tunnel a unique piece for your home.

Why this matters for you and your cat

With this tunnel, you can:

• Provide your cat a private route between rooms and closets, encouraging exploration and reducing stress for indoor cats
• Keep food and litter areas accessible to your cat while limiting dog access
• Convert unused wall space into a practical pet passage without structural modifications
• Offer a durable, safe passage crafted from non-toxic materials that are built to last in a busy home

What’s included, how it comes together, and practical tips

The Circle Thru-Wall Cat Tunnel is shipped as a three-piece kit (two circular plates and one connector) that you assemble with the included hardware. This compact, modular approach makes handling and installation easier, and it accommodates the realities of home walls and everyday use.

Practical tips to get the most from your tunnel:

• Color details: rainbow prints will vary by batch; color is unique to each order
• Screw color options: black or white screws are color-matched where possible; other colors use stainless steel silver screws—paintable after installation if you wish to match fixtures or trim
• Imperfections: additive manufacturing may yield tiny surface variations; these do not affect strength or safety and items are inspected before shipping
• Maintenance: wipe with a soft cloth to remove dust; inspect screws periodically to ensure continued secure fit

Designed for cat lovers who want both function and a touch of whimsy, the Circle Thru-Wall Cat Tunnel offers a reliable way for your cat to explore, nap, and access preferred spaces—on their terms. It’s a thoughtful addition to any home where cats deserve a little extra room to roam, while pet parents enjoy a calmer household with fewer cross-species free-for-alls.

Give your cat the gift of adventure, privacy, and comfort with this custom-built through-wall tunnel—a distinctive, practical upgrade that blends cat happiness with home harmony.