Our screened bottom board is perfect for temperature control during climate changes and provides assistance with pest management. A bottom board acts as the floor of your hive. By using a screened bottom board instead of a solid one, you allow varroa mites to fall through the screen without risking intruders from other hives entering your hive. In this way, the screened bottom board provides a proven means of non-chemical pest control. The mesh screen also allows for superior ventilation, ensuring that your bees are happy and healthy at all times. We care 8 Frame and 10 Frame.