The Portabase is a unique concept that allows for added convenience & build strength when constructing the base for your garden outhouse. Fixed securely into the ground with metal support brackets, the Portabase is ideal for uneven surfaces such as grass or soil and uses pressure treated timber for greater robustness, suctural efficiency & anti rot resistance. Easy assembly & for use with sheds, summerhouses & stores, the Portabase is a fantastic alternative to traditional foundations such as concrete & slab base. Dimensions: 6ft x 4ft