Cat window perch that won't splinter

A wooden perch splintering after six months is genuinely frustrating — especially when your cat was using it well and you'd gone to the effort of installing it. Wood is the weak link in most budget perches: it absorbs moisture from windows, gets scratched, and eventually gives way. The good news is that window perches are one of the best enrichment additions for indoor cats — the stimulation from birds, movement, and sunlight makes a real difference to their wellbeing — so it's absolutely worth finding something more durable. To point you in the right direction: how heavy is your cat, what kind of windows do you have (smooth glass, frames, double-glazed units), and is this for one cat or do they share the spot?

That wall-mounted wooden shelf style does look solid but it's surprisingly vulnerable — the grain runs the wrong way for the load a cat puts on it, especially if she sits in the same spot repeatedly. At 5kg on smooth double-glazed glass, I'd move away from wood entirely and go with the K&H Pet Products EZ Mount Kitty Sill. It uses heavy-duty suction cups rated well above your cat's weight, a rigid plastic frame, and a removable padded fleece cover. There's no wood anywhere in the structure, so no splitting, no swelling, and nothing that degrades with condensation from the glass. The fleece cover is machine washable, which is a nice bonus.

It's a fair concern, but the K&H cups are a different category from the cheap ones on budget perches. The key is surface prep — the glass needs to be completely clean and grease-free before you attach them, and they should be pressed on firmly and left for a few hours before your cat uses it. Once seated properly on smooth double-glazed glass they hold extremely well. K&H also recommends positioning it so one end is near the windowsill or wall, which takes a lot of the rotational load off the cups. Many owners have had these up for two or three years without any issue. I'd feel confident recommending it for a 5kg cat.

Height matters mainly for the cat's confidence getting up and down. If she can already reach a windowsill by jumping from a nearby piece of furniture, you can position it at whatever height gives her the best view — usually somewhere between 60cm and 100cm from the floor works well. If the window is high and she'd have to make a big leap, it's worth putting a small cat tree or stool nearby as a step. The K&H EZ Mount Kitty Sill comes in a standard size that fits most single cats comfortably, and at 5kg she's well within its weight rating. I'd go with that one — it'll outlast any wooden option by a long stretch.