The invention of manufactured sheets of pure beeswax is one of the greatest boons to bee-keepers. The material consists of a thin sheet of beeswax impressed mechanically with the bases of the honeycomb cells and the bases of the cell walls. This is sold in sheets of the correct sizes to fit into the wooden brood frames, shallow frames and sections.
For brood frames, “worker foundation “is used, as this ensures that the bees are induced to build worker cells in the brood chamber to the exclusion of drone cells. It should be noted that it is a great disadvantage to have too many drone cells in the brood chamber, as too many drones encourage swarming and, as they are not honey gatherers, consume large quantities of honey which might otherwise be stored. Bees, however, will not always draw out the worker foundation as worker cells. Sometimes they draw out the foundation part worker and part drone. The intermediate cells are called transition cells.