H-Series Extension Kit
One more level for your existing H-Tree, in the same materials and proportions.
Final/Total cost shown at checkout
The Extension Kit lets your H-Tree grow with your cat. It adds a full platform, a wool felt topper and two sisal columns, so an H1 becomes an H2, an H2 becomes an H3, and so on. It is the same beech, the same proportions and the same fit as the original tree.
Everything clips onto the existing frame, and all the fixings and multilingual instructions are in the box. Assembly takes minutes, with no need to rebuild the whole tree or buy a new one.
It fits H1, H2 and H3. Choose the finish to match your tree, and add the height when your cat, or your home, needs it.
Specifications
- Dimensions: Adds 19.7 in (50 cm) of height; platform 25.6 x 12.6 in (65 x 32 cm)
- Weight: 5.3 kg
- Material: Solid beech, wool felt, natural sisal
Assembly guide
Ships flat with a printed manual and the fixings. Download the assembly guide (PDF).
About H-Tree Studio
H-Tree Studio is a German design studio, based in Berlin, that builds cat furniture for people who care as much about their room as their cat. The work sits somewhere between Japandi craft and Berlin minimalism, with a close eye on how cats actually use vertical space. The idea is simple. A cat tree should earn its place in the home, not hide in a corner.
One system, four heights
Every tree is part of one modular system. H1 starts with a single platform at about 120 cm. H2, H3 and H4 add platforms and height, up to 270 cm. You can start small and add levels later, or scale back down if your space changes. Same materials, same proportions, same joinery at every step, so the tree grows with your cat instead of being replaced.
Honest materials
Solid beech and beech multiplex carry the load, with no MDF and no cardboard anywhere in the build. Platforms are topped with wool felt, and the scratching columns are wrapped in natural sisal. These are materials that age honestly and hold up to daily scratching, and each felt and sisal piece carries small variations in tone that come with the natural fiber.
Made in Europe
The H-Series is designed in Berlin and handcrafted in Europe. Platforms are rated to hold 30 kg, fixings and multilingual instructions come in the box, and assembly takes minutes with the included tools. It is built to be lived with for years, and to be repaired rather than thrown away.
See it in action
We like that it keeps the whole system going, so buying an H-Tree is a first step rather than a fixed size.
- Adds one platform, one felt topper and two sisal columns
- Adds 50 cm (19.7 in) of height; platform 65 x 32 cm (25.6 x 12.6 in)
- Beech structure, white or black lacquer
- Wool felt topper, white or black marled
- Sisal columns in natural or black, 100% natural sisal with latex backing
- All fixings and multilingual instructions included
Shipping and returns
Shipping, with import duties and taxes, is calculated at checkout. Delivery usually takes 7 to 10 business days.Returns are not accepted, except when the wrong item is sent or the item arrives defective. Please contact us first so we can put it right.