I'm planning on buying a shed and summerhouse online, and had been intending on siting them on a solid concrete base. Now the total cost for the garden is going too high and I'm wondering if the concrete bases are a luxury I can do without??? Unfortunately I know NOTHING about the subject but I know you guys do :-) I'd be so grateful for any suggestions for alternatives. FYI the shed / summerhouse are: http://www.gardenbuildingsdirect.co.uk/Summerhouses/Waltons-Sus***-Summerhouse http://www.gardenbuildingsdirect.co.uk/Timber-Garden-Sheds/BillyOh-Shed