You can use your existing kiln furniture with Advancer kiln shelves. This includes other kiln shelves and posts or stilts. Advancer shelves do not require special posts. Posts may stick to the shelf surface. Kiln washing the ends of the posts will take care of this issue. We do not recommend using full hard bricks for posts with Advancer shelves. Hard brick soaps are fine to use.
ADVANCER® shelves are up to 19 times stronger than one-inch thick cordierite shelves! Therefore it is unnecessary and not recommended to use any arrangement other than a 3 point stack. This is the most stable system and puts the least amount of stress on any single shelf.