A can of worms to open up here.
Following on from the topic of suites earlier, many people charge per seat unit.
However, how does everyone qualify this in relation to a typical 3pc (e.g.) 3 seat sofa and 2 armchairs.
An armchair has: two arms + one cushion area.
A 3 seater sofa has: two arms + one cushion area
+
two more cushion areas.
These extra
two cushion areas are approximately equivalent to two arms + one cushion area.
The point being a 3 seater sofa is equivalent in size to 2 armchairs.
This is of course dependant on relative cushion size and whether double or single sided etc.
Therefore, who charges for 5 seats and who charges for 4, or perhaps has no-one thought of it in this way?
Regards Ian.