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Build a Basic Cat Tree: Simple Step-by-Step Plan

A basic cat tree needs a stable base, a sturdy vertical post, and at least one comfortable platform. With plywood, lumber, sisal rope, and pet-safe covering, you can create a compact structure tailored to your cat and available floor space.

Use 3/4-inch plywood for the base and platforms, plus a 4-by-4-inch wood post or thick PVC pipe for the support. You will also need sisal rope, low-pile carpet or felt, wood screws, brackets, pet-safe adhesive, a drill, and a staple gun.
For a simple tree, cut a base approximately 24 inches square and a platform around 16 inches square. Choose untreated, smooth wood without splinters, exposed staples, or toxic finishes.

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Center the post on the plywood base and attach it from underneath with long wood screws. Add metal corner brackets around the post for extra stability, especially if your cat is large or highly active.
Test the connection by pushing the post firmly from several directions. If the base lifts or rocks, enlarge it or add weight before continuing.
Secure the upper platform to the post with screws and brackets, keeping all hardware recessed or covered. Wrap the post tightly with 1/4- to 3/8-inch sisal rope, applying pet-safe glue every few inches so the coils do not loosen.
Cover the base and platform with carpet, felt, or another durable fabric. Staple the material underneath each panel, where paws cannot reach sharp fasteners.
Place the finished tree on a level surface and test it with pressure greater than your cat’s weight. Position it near a window or favorite resting area, but keep it away from shelves containing breakable objects.
For more layout ideas and furniture-style options, see this guide to modern cat climbing trees, tables, and scratching posts.
Make an easy DIY cat tree by attaching one sturdy post to a wide plywood base and adding a single platform. Wrap the post in sisal rope and cover exposed wood with pet-safe fabric.
An easy-to-assemble cat tree has predrilled panels, labeled hardware, and posts that screw directly into the base. A short, two-level model is generally faster to assemble than a tall multi-platform tower.
Plywood is one of the best materials for a DIY cat tree because it is strong and less prone to splitting than particleboard. Combine it with solid wood posts, natural sisal rope, and durable low-pile fabric.
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