A chair that arrives built is a different purchase from one that arrives flat. The Rivo Boucle Armchair in white comes out of its carton finished — white bouclé over a U-shaped shell, three legs under it — which is all to the good until the room you bought it for is at the top of the stairs.

It is 67cm across at its widest and it never gets any narrower: no leg to take off, no back to unbolt. So the tightest point on the route in is what settles it — the front door, the turn on the landing, a doorway with its architrave. Anything under that, plus the hands carrying it, and the chair stops where it stops. The carton is wider again.

Where the route is the problem, the Nook Boucle Armchair - White arrives in a box and is put together in the room it will stand in.