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Updated 9 October 2026 · Cat Tree UK editorial team
A useful DIY cat tree starts with a measured plan. Decide what your cat needs and where the structure will stand before buying materials. This guide is a planning checklist, not an engineered construction drawing: timber sizes, connections and anchoring must suit the actual design.
1. Write a brief for the finished tree
Record your cat's size, preferred sleeping position, scratching habits and current climbing ability. Measure the available floor area, including space for overhanging beds and a clear landing. Mark doors, windows, radiators and anything the new height would make reachable.
Draw the route up and down. Avoid designing an impressive top platform with no comfortable way to reach it. If several cats may use it, think about passing places and separate resting options.
2. Choose a design you can build competently
Start with a suitable, properly specified plan rather than combining attractive photographs. A base, upright and platform form a structure; adding a projecting bed changes the forces on its joints. A static weight placed on a platform does not establish how it will perform when a cat jumps onto it.
If you cannot assess the design, ask a competent furniture maker or installer. Wall-mounted and tall structures need site-specific decisions. Our wall-mounting guide explains what to establish before drilling.
3. Prepare a complete materials list
- Structural components and connectors specified for the chosen plan.
- Scratching and resting surfaces appropriate for their intended use.
- Fixings of the correct type and length, with no exposed sharp ends.
- Suitable finishes or adhesives, with documented application and curing instructions.
- Tools, protective equipment and a separate work area inaccessible to the cat.
Do not assume reclaimed timber or fabric is suitable when its treatment or condition is unknown. Consider how surfaces will be cleaned and replaced. Removable covers are easier to maintain than upholstery that requires dismantling the whole tree.
4. Build and finish according to the plan
Measure and mark before cutting, check alignment during assembly and use the specified joints and fixings. Smooth accessible edges and avoid gaps, loops or loose trim that could trap claws or detach. Do not add improvised hanging toys with long cords.
Follow all material and adhesive instructions, including ventilation and full curing. A surface that feels dry is not necessarily ready for use. Keep a record of the products and hardware used for future repairs.
5. Inspect before allowing access
Confirm that the structure sits correctly, connections are secure, surfaces provide suitable grip and any required restraint is installed. Have uncertain structural work assessed before use. Do not use your cat as the test load.
Introduce the finished tree at the cat's pace and watch how they approach and descend. Recheck after initial use and during routine cleaning. Stop access if joints loosen, platforms move or materials become damaged.
Is DIY still the right choice?
Revisit the full budget after costing tools, delivery and finishing materials. Our DIY versus shop-bought comparison helps weigh custom fit against time, skills and support. A simpler suitable design is preferable to a complicated build you cannot confidently assess.