5mm thick calcium silicate board, Chiyoda Cera Board Unused, stored item [Please purchase after understanding the following.] We will cut and ship it to your desired size. (The edges may be slightly chipped during transportation, so we will cut it slightly larger. Please adjust by cutting or sanding after receiving it.) The price will vary depending on the size, so please consult with us in the comments before purchasing. [Estimate] 20cm x 30cm for 750 yen including shipping Up to approximately 50cm x 40cm for 2050 yen More than half of the cost is for shipping, so there is a discount for multiple sheets. If you purchase without contacting us, we will ship one sheet of 20cm x 30cm.