Yes, your shed does need a base. This is to give it a solid, level foundation. Open soil will not help with the longevity of the shed itself or the contents within. The best materials to use to make your shed base are concrete, natural stone or wood.
Kidwelly
Kidwelly is a community as well as neighborhood in Carmarthenshire, southwest Wales, approximately 7 miles (11 km) northwest of one of the most populous community in the area, Llanelli. In the 2001 census the community of Kidwelly returned a population of 3,289, increasing to 3,523 at the 2011 Census. It rests on the River Gwendraeth above Carmarthen Bay. Local destinations consist of Kidwelly Castle, established in 1106; a fourteenth-century bridge and also gateway; the previous quay (currently a nature reserve); a Norman parish church, as well as a commercial gallery. Kidwelly Carnival is an annual occasion held on the 2nd Saturday of July. Previous circus have actually included aerial displays. The town is twinned with French village Saint-Jacut-de-la-Mer on the north coastline of Brittany.