Categories: All Equipment Foundation Anchors Insulated Exhaust Fan Consulting Consulting Greenhouses Built Onsite 12' x 12' Greenhouse Built Onsite 12' x 18' Greenhouse Built Onsite 12' x 24' Greenhouse Built Onsite 12' x 30' Greenhouse Built Onsite 12' x 36' Greenhouse Built Onsite DIY Greenhouse Kits 12' x 12' Passive Solar Greenhouse Kit 12' x 18' Passive Solar Greenhouse Kit 12' x 24' Passive Solar Greenhouse Kit 12' x 30' Passive Solar Greenhouse Kit 12' x 36' Passive Solar Greenhouse Kit All / DIY Greenhouse Kits 12' x 12' Passive Solar Greenhouse Kit | 12' x 18' Passive Solar Greenhouse Kit | 12' x 24' Passive Solar Greenhouse Kit | 12' x 30' Passive Solar Greenhouse Kit | 12' x 36' Passive Solar Greenhouse Kit | Quick View 12' x 12' DIY Passive Solar Greenhouse Kit $7,400.00 Quick View 12' x 18' Passive Solar Greenhouse Kit $8,200.00 Quick View 12" x 24" Passive Solar Greenhouse Kit $10,700.00 Quick View 12" x30' Passive Solar Greenhouse Kit $12,700.00 Quick View 12' x 36' Passive Solar Greenhouse Kit $16,600.00