On Sunday, 5 May 2019 17:30:23 UTC+1, David WE Roberts (Google) wrote:
However as the with of the room is about 2.4 metres it is a good thought
that a standard board such as ply in 2400 * 1200 would cut down to make a
desktop without paying through the nose for chipboard and plastic.
Hmmm...no, 1200 is just too deep. However a standard worktop is 600 mm so
an extra few 100 mm might not go amiss. 900 mm perhaps?

The excess depth could be ripped down to give you a matching shelf or two full width.

Just watch the diagonal length and non-square walls for manouvring it into place.

Owain