Replacing Missing Coving but Unsure of Correct Size? Ask your questions and find answers on many subjects relating to plastering and dry lining

[pgrimsey]

Hi

We're looking to replace the missing coving along one side of the room.
The coving is very plain (see photo), but seems to be way too large for standard sizes - the drop and projection are ~11.2cm (hard to measure perfectly). Which would make the size ~160mm.

I would ideally prefer polymer, but don't think this exists in these sizes?

Thanks

Paul