Frames are craftable items added to Forestry for Bee Keeping. There are 3 types of frames: Untreated Frames , Impregnated Frames , and Proven Frames . The first two frames can be made by the player, but the proven frame can only be obtained by trading with NPCs. Frames increase the production rate of apiaries by 10% per frame. Each frame has a different lifespan. Untreated Frames have the shortest lifespan, and Proven Frames have the longest lifespan. Frames are placed in the 3 middle slots of an apiary .