Build your own dog box with an Owens Do-It-Yourself Dog Box Kit.
The kit contains a bolt pack, two 7" x 10" maximum flow side air vents, an aluminum front (38"W, with a welded, rigid door frame to keep your box square and secure). Heavy-duty aluminum corners are included for durability. Optional storm door covers are available in dog box accessories.
Owens kits are available in two sizes to work with both full size and down size trucks: 48"W for full size trucks and 38"W for compact trucks.
DIY kits require owner-purchased wooden sides. Assembly is required.
Factory Direct Ship via UPS Ground. Although they're usually shipped promptly, they are made to order and can take up to 3 weeks for delivery. Shipping times grow longer during hunting season and near Christmas. Order early.