Well, sometimes at least: We moved from Asia (Singapore) to Europe, and while waiting for our movers to arrive, we checked the childrens bedroom in the new house against the dimensions of their beds _looked up on the European IKEA site_: The bed would not fit.

When the movers came with our container, I checked the dimensions on the actual IKEA bed we had bought in Singapore: It was smaller than the European version, and fit perfectly into the bedroom.