Keep the assembly instructions, model name, part identifiers and any care guidance supplied with the tree. Save written advice about capacities, tightening methods or replacement components, especially if it is specific to your product. A short record of assembly, moves and part replacements can help explain a recurring problem later.
Photographs of the original configuration are useful when checking whether a platform has shifted or a fitting has changed. You do not need to document every time you remove fur, but note structural issues and the steps taken to address them. Store the information somewhere accessible when ordering spares. These records reduce the temptation to improvise because a bolt size or component name has been forgotten, and they help the retailer give advice about the correct version of the product.
Label maintenance photographs with the date and component position. A short entry such as upper-left basket replaced, with the supplier's part number, gives a later enquiry useful context without turning routine cleaning into an elaborate record-keeping task.
For product comparisons alongside this advice, see Ultimate PawHouse and Taj-MeowHall. The details below explain their sizes and uses.
Further reading: .
Ultimate PawHouse
Taj-MeowHall
Cat-Cave