Happy with the Quality and Design of the Sigma Gen III From: Fatima Basic Location: St. Catharines, Ontario Product: Sigma 20 (Gen III) Just a few pictures from my greenhouse I bought this year. I am very happy with it except when rain, there is a water coming in around the roof wants and some joints. Customer Photos Greenhouse From This Story Sigma 20 (Gen III) 4.7 · 90 reviews 10' × 19,5' × 7'55 psf (265 kg/m²) snow load Prix habituel $4,000 USD Prix habituel $4,300 USD Sauvegarder $300 Vente Prix soldé $4,000 USD Prix unitaire / par Épuisé View Greenhouse More Reviews from Ontario