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.
In general you do not need any special posts for use with ADVANCER® shelves. Round or square cordierite posts with a hole down the center will work just fine. Hard fire brick soaps (2-1/4” x 2-1/2”x 9”L) in various lengths may also be used. It is not advisable to use full hard bricks (2-1/2” x 4-1/2”x 9”L) as posts with ADVANCER due to potential uneven thermal gradient problems created by such massive shelf/post contact areas. Wadding between shelves and posts is frequently used to promote setting stability, and is an acceptable practice with ADVANCER shelves. It is also recommended to use a suitable kiln wash on the ends of posts to prevent sticking between ADVANCER shelves and posts after repeated firings with posts in the same spot on the shelf surface.
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.