The Rion Base Kit was engineered to provide additional stability and additional headroom for Rion Greenhouses. Manufactured with heavy-duty 100% UV-protected Resin and engineered with a U-shape, honeycomb design for extra durability. Filled with soil this base kit provides a solid foundation and also provides an additional 12 cm of headroom. Like all Rion products, the Base Kit assembles in a snap. Push-fit assembly - snaps together quickly Elevates greenhouse up to 12 cm Heavy-duty 100% UV-protected resin frame Areas prone to strong winds may require additional stakes or concrete footers Dimensions: Covering Area = 5.1m2 / 54.4ft2 L258 x W258 x H12.5 cm . Base Kit 6X8Ft. Rion . Delivery is free to UK Mainland excluding the following postcodes where a surcharge may apply so please check before ordering for the following postcodes:- PO30,AB31-38, AB41-56, FK19-21, IV1, IV3-56, KW, ZE, HS, Guernsey, Jersey, TR21-25, IM1-9 . 5#7