6mm exterior top quality BIRCH plywood framed with ¼” x 7/8″ cedar wood laths. Bee space on both sides. Has two cut out slots for two plastic porter bee escapes, which are included. When feeding bees, the feed is placed directly over one of the slots if using a rapid feeder, or both slots if using a bucket contact feeder. In the winter, the crownboard is often placed directly over the brood body.
Height: 18mm, Width: 405mm, Length: 450mm