If you've only just been bitten by the gardening bug & are looking for a starter greenhouse that doesn't cost the earth, then the Popular 6 x 4 Greenhouse is a perfect choice. At just 6 foot x 4 foot, it's suitable for any garden, yet still has ample space for your tender plants & seedlings. This Popular 6 x 4 Greenhouse has Twinwall UV stabilised clear polycarbonate for good light refraction, high insulation & added safety. It's got everything you need to get your garden off to a flying start. It's a right little cracker! Please note â Image shows Green Framed version of this greenhouse. Aluminium Frame Glazed with Twinwall UV stabilised clear polycarbonate for good light refraction, high insulation & added safety. This 6x 4 Polycarbonate Greenhouse is an ideal starter greenhouse for those who want to invest more time into their gardening. Single smooth action sliding door fro easy access. Integral guttering comes with this 6x 4 Polycarbonate Greenhouse.