Master ‘Mill Finish’ Greenhouses are made with strong ‘box section’ Janssen aluminium profiles. The aluminium used in this ‘Mill Finish’ model doesn’t have a powder coated or anodised finish and will tarnish or weather with age. Doors can be fitted at the side or end of the Greenhouse as you prefer and have good height at 1.85m (6ft 1 inch approx.). Supplied with 4mm toughened glass as standard and available in five different sizes, the Master is a stunning and very strong Greenhouse. The Master comes with lots of ventilation included as standard.