Aluminium greenhouse series palram glory floor area 1471 m width 244 cm depth 603 cm total height 268 cm eaves height 191 cm greenhouse wall 10mm twin wall panels wall material polycarbonate roof shape apex roof roof thickness 10 mm max snow load 100 kgm frame material aluminium steel door type hinged door door size h x w 80 x 191 cm number of windows 5 features with automated windows