I'm pretty sure they're not. It looks like some typical 1/2" 5-ply with a verneer, middling cabinet quality plywood, that someone used long ago to replace the original boards. It has warped so that the overlaps, especially middle and top board, do not work well (middle board warped outwards, top board warped inwards, for example). cheers, John S. On 08/17/2017 01:29 PM, Jon Barber wrote:

Are they euro ply ? Measured in mm's?

9.5mm about 3/8" / 12.5mm about 1/2"

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