Finding a sturdy cat tree for large cats can be surprisingly hard — especially when your feline friend weighs in at over 23 pounds. Most cat trees on the market wobble under that kind of weight or have platforms so small and high that only an acrobat of a cat could enjoy them. Crystal tells us her story, in her own words, of how she made a cat tree for her fat cat!
When we just adopted our cat, he was a whopping 10.5kg, and as a result, big and clumsy. We could not find any cat trees on the market that could hold a cat of his weight.
Since he is clumsy (for a cat), cat trees that required the agility and flexibility of a normal cat were out e.g., narrow platforms.
We wanted to encourage him to exercise more and to feel comfortable at home, so we decided to build something for him.
We are not very adept with tools, and this DIY cat climber hack requires absolutely no special tools – just the usual Allen key included in the flat pack.
IKEA items used:
- HEJNE shelf and posts
- OBSERVATÖR cross brace
- SIGNE rugs
Other materials and tools:
- Sisal rope (optional)
- cushions & other accessories
How to Make a Cat Tree for Large Cats

First, build the HEJNE shelf in accordance with the usual shelf instructions.
Add shelves to another set of 2 posts, but make sure that the shelves are on different heights so different holes on either side of the same post can be used.
Join the 2 parts together.
Install the OBSERVATÖR braces for stability.

Wrap sisal rope around the posts (optional).

Place SIGNE rugs onto the shelves so paws don’t fall through the gaps.

Since I happened to have spare cushions and cloth lying around, I used them to make 2 beds to place on the shelves.


DIY cat tree for large cat – time and costs:
This took us about 2 hours and cost (in Singapore dollars), $88.50.
- $5 (2 HEJNE posts) x 3 = S$15
- $15 (4 wide HEJNE shelves) x 2 = S$30
- $10 (4 narrow HEJNE shelves) x 2 = S$20
- $3.90 (5 SIGNE rugs) x 5 = S$19.50
- $2 (2 rolls of sisal) x 2 = S$4
It is a simple design, no drilling or messiness, no special tools required. And being somewhat of a germaphobe, the rugs are easy to remove for washing.
We put cat food on the bottom-most shelf as a means for storage, but also for added stability. While the blocky design of the cat climber makes it fairly stable, it still shakes a little when he jumps onto the highest level.

Since the post and shelves are made of untreated wood, and there were some splinters where the holes are, we sanded these parts to make sure our cat would not get hurt while rubbing against the posts.

Other things you can do would be to add a coat of varnish over the wood so it will be more durable and water-resistant.
~ by Crystal
NEXT: We’re purring for more IKEA cat hacks.
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