Material: Fir Wood, Pinewood, Metal, Plastic. Overall Dimensions: 18.1 x 22 x 19.9 in. Top Cover: 21.8 x 18.1 x 2.6 in. (55.3x46x6.5 cm). Inner Cover: 19.9 x 16.3 x 1 in. (50.5×41.3×2.5 cm). Medium Box: 19.9 x 16.3 x 6.6 in. (50.5×41.3×16.8 cm). Medium Frame: 19 x 1.4 x 6.3 in. (48.3×3.5×15.9 cm). Deep Box: 19.9 x 16.3 x 9.6 in. (50.5×41.3×24.5 cm). Deep Frame: 19.1 x 1.4 x 9.2 in. (48.3×3.5×23.2 cm). Queen Excluder: 20.1 x 16.1 x 0.1 in. Bottom Board: 22 x 16.3 x 1.9 in. (56×41.3×4.9 cm). Net Weight: 39.1 lb. 4x Medium Box Boards. 1x Plastic Queen Excluder. 4x Deep Box Boards. LARGE VOLUME: Measuring at 18.1″ x 22″ x 19.9, this 20-frame Langstroth beehive from Creworks provides ample space for brood and honey production; when full of honey, this beehive kit can easily generate 20% more honey than 16-frame beehives. DURABLE CONSTRUCTION: Crafted with fir wood exterior and pinewood honeycomb frames, our bee house offers exceptional corrosion resistance, while the thickened bottom board and metal telescoping cover ensure stable temperature and humidity. USER-FRIENDLY DESIGN: This 2-layer beehive starter kit is designed with features such as a solid bottom board, widened entrance reducer, plastic queen excluder, and inner cover to make beekeeping convenient for beekeepers at all levels. SIMPLE ASSEMBLY: This beekeeping supply boasts an easy assembly process that can be completed in just 10 minutes thanks to the simple dovetail design and clear instructions provided. EASY TRANSPORT: Featuring handy grips on all sides, our bee start kit is easy to transport and relocate, allowing you to move it to the optimal locations for your busy bees.