The 6x4 Shed base for the Shiplap tongue and groove shed come with metal spikes that sink straight into the ground for easy installation, creating a level base for your shed. Only suitable for use with Forest sheds of the corresponding size. Easy to assemble with metal spikes that sink into the ground to keep the shed base in place. Pressure treated for longer life eliminates the need for annual retreatment. Manufactured from FSC certified timber from sustainable sources and comes with a 15-year anti-rot guarantee.