Venlo greenhouses are traditionally the most well-known and most popular type of greenhouse, equipped with aluminium gutters, deck and wall system. The Venlo greenhouse is constantly being developed and is now available with diverse trellis girders, bay and section sizes. Different air ventilation systems are available, with the option of easily fitting the ventilation windows with insect netting systems. In addition to glass, plastic panels can also be used for the deck and walls.