This medium-sized 12″ tall 4×14 kit is great for those who want the additional space while gardening. There are 2 extension brackets that will add additional room for extra plants. This kit also includes 8 corner brackets, 7 (4′) and one (8′) center and top strengthening bracket. The center strengthening brackets help keep your planks in place with applied pressure while the top strengthening brackets help prevent splinters. We also include Western Red Cedar Wood with this kit. There are 14 four foot boards and 2 eight foot boards.