Push-fit assembly - snaps together quickly Elevates your greenhouse by 10cm Heavy duty 100% UV-protected resin frame Improves greenhouse stability and durability Areas prone to strong winds may require additional stakes or concrete footers Height:9.9cm( 3.9in ) Width:196cm( 6.43ft ) Depth:196cm( 6.43ft )This Palram Base Kit was engineered to provide additional headroom as well as stability for Palram Greenhouses of the same size. This base is 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 very solid base and it also provides additional 10cm of headroom and growing space. All that, and this Base Kit assembles in a snap too!