Evenheat Furniture Shelf for GTS 18

15-1/2" x 5/8" thick semi-circular shelf, 2350F maximum use. 39.4cm x 1.6cm thick semi-circular shelf, 1288C maximum use. Designed for use with all kiln models and brands with a minimum 17-1/2" (44.5cm) diameter chamber opening. We recommend that you always use posts under your shelf to raise it off the floor and suggest starting with 1" posts. You are welcome to use any size post you wish. We do not recommend placing the shelf directly on the kiln floor.