These durable wooden storage units are constructed with 5/8" plywood for the bottom to provide a solid support platform. The sides, back and front are ¾" plywood. The lid is 5/8" plywood with an overhang on the both the front and sides and is fastened using galvanized hinges to provide durability in all weather conditions. Handles are added to the lid to make it easy to open. Each box is vented on both sides and the front to provide a constant air flow. A drain plug is included in the floor for easy washing of your battery bank. Every box is finished with quality exterior paint available in black, brown or white. It can also be shipped unfinished so you can match to your home’s exterior. Top and front are removable to allow easy battery installation. Battery boxes are shipped unassembled. Assembly is easy and can be done in just a few hours with 2 people. Step by step instructions, all hardware, screws, and finishing supplies are included in every box. Battery size Type 24, 27, 31 Number of Batteries 8 Dimensions W" x D" x H" 37 x 33 x 20