Metal bars of varying thicknesses or one-piece frames are used for slabbing (i.e., spreading) centers on a stone slab. The formulas in this work are made using metal frames with 12-in cm bars of three depths: ¼ in, ⅜ in, and ½ in. Other sizes may be used to achieve confections of different thicknesses, but the formula yields may require adjustment. In addition to the frames used for slabbing centers, a larger set of bars surrounding the stone slab can be helpful for containing large batches of hot mixtures, such as fudge or hard candy, while they cool.