Does a cat tree's total weight limit cover two cats?

A total load limit covers both cats only if the manufacturer's instructions explicitly define it that way and their combined weight stays within that limit. Read the wording carefully. A listing may describe the capacity of one platform, one hammock or the entire assembled tree, and those are different measurements. Do not multiply a per-platform figure to invent a whole-tree capacity. Equally, do not assume a high total rating means both cats can occupy the smallest bed together.

Ask the seller to clarify any missing detail before ordering. Explain that two cats may climb or land on the structure at the same time, rather than describing only their sleeping weight. Follow the specified assembly and fixing instructions, because the published limit may depend on them. If there is no clear rating for the intended use, choose a product with better documentation instead of estimating from photographs.

As an arithmetic example, cats weighing 7 kg and 5 kg have a combined body weight of 12 kg. That calculation is useful for comparing documentation, but it does not establish that a tree rated for one 12 kg occupant supports two active cats.