Stevekane
Established Member
Yep quite right, its clear though that there are oddball sizes out there and if like me you were given a couple of half sheets of ex packing case its handy to know that,,I wonder why they go to the trouble of making very slightly thinner stuff, it seemed perfectly normal in all other respects?it's the most accurate material out there, what you got was probably 15mm MDF, or maybe a coverboard used for packing cases. MDF sizing is very very accurate, way better than ply. I buy hundreds of boards per annum and I'd say it's all within 0.1mm