If this is for a paint grade cabinet door center panel I would just use mdf.
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Imran, coincidentally, I spent Saturday in a veneering workshop, and one of the incidentals that came up in conversation (as these things do - that is the joy of such events) was the addition of 3mm MDF skins to an 18mm cheap ply core to form shelving (which we all know is succeptible to sagging over time). I was able to compare the difference of ply alone with added MDF skins (in both cases, including solid wood edging). It was astounding how much rigidity the MDF version added. Is this due to the MDF or added glue, or both? For painted or veneered shelving, this is a serious option.?
Regards from Perth
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Derek