It is based on one of the original designs by Sir Albert Howard, a founder of organic gardening, with the boards angled and spaced to provide good air circulation and moisture to promote decomposition. Easy to assemble, the set includes four powder-coated steel brackets that hold a total of twenty 1" x 6" wooden boards (that you supply). Screws included.
It is recommended that some boards be left unscrewed for quick removal, to easily access your compost for turning and removal. At a height of 3', the recommended maximum dimensions are 48" long by 48" wide (but this can be reduced to fit available space). Makes an effective and sturdy composter.