I am trying to find 3mm and 6mm mdf at a big box store (lowes, menards or home depot - all within 15 mins of me). If you get your supplies from them could you PM me the barcode number on the item? I have only found 2'x4' sheet of 1/4in mdf at HD for around $5.50. I usually use masonite (hardboard used for clipboards) but it is very oily and would prefer to use 1/8in mdf.

Thank you.