6-Pack of 3 mm Walnut Plywood Sheets 297x210x3 mm (11.70" x 8.27"× 1/8") premium Walnut plywood won't warp or deform. Walnut Plywood can be laser-cut and engraved by all xTool machines. The eco-friendly natural Walnut plywood with beautiful grain. Please allow a ± 1/2 inch variation for length and width sizes and a ±1/12 inch variation in thickness.