CEDAR CONSTRUCTION FOR DURABILITY: Natural Cedar wood outside Frames with Pinewood honeycomb foundation frames our beehive can resist against wear decay & rot and stand up to years of use even under the toughest environment.LARGER VOLUME: This 16-1/4 x 22 x 29-1/2 30-Frame equipment is larger than 20 frame wood equipment by approximately 30 percent. When full of honey a full 30-Frame beehive can generate 20% more honey than that of an 8-frame beehive.METAL ROOF: Pre-assembled metal roof helps to keep out the elements and maintain the purity as well as the freshness of honey.COMPLETE DESIGN: Designed with a solid bottom board entrance reducer and inner cover for your convenience.INCLUDE EVERYTHING YOU NEED: The kit comes with everything you need to build a tight & sturdy beehive; assembly can be completed in up to 10 minutes.