Protect your plants from harsh winds and driving rain with the Mill Poly twin-walled Greenhouse. With durable polycarbonate panels and a sturdy, maintenance-free aluminium frame, its ideal for conserving heat in the winter and preventing storm damage all year round. Aluminium frame and comes with . 4mm twin-walled polycarbonate roof panels to aid insulation during winter and provide shade during summer. Clear polycarbonate glazing wall panels. Integral rain gutters for water collection. H209, W193, D315cm / W6ft D10ft. Manufacturers 5 year guarantee.