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.
Saundersfoot
Saundersfoot is a huge village, neighborhood and selecting ward in Pembrokeshire, west Wales. It is near Tenby, both being vacation locations. Saundersfoot lies in the Pembrokeshire Coast National Park and on the Pembrokeshire Coast Path. Saundersfoot was known in middle ages Wales as Llanussyllt, as well as after the Norman occupation as St Issels (occasionally Issells), both after the parish church devoted to the Welsh saint Issel. Its bishop or abbot was thought about among the seven principal clerics of Dyfed under medieval Welsh legislation. It was a significant church in 1833 with 1,226 inhabitants. John Marius Wilson described the village and also church as St Issells in his 1870-- 72 Imperial Gazetteer of England as well as Wales. The church hinges on a dell to the north of Saundersfoot and is a grade II * listed structure.