Oval vs Round Greenhouse Tubes: Why Oval Wins

When designing a professional greenhouse, every structural choice affects performance, longevity, and crop results. Among these choices, none impacts overall efficiency more than the shape of the steel arches. Traditional greenhouse frames use round or square steel tubes. While functional, these profiles limit structural performance, restrict luminosity, and add long-term operational costs. Today, the oval […]

Thinking of a greenhouse complex expansion? Think of Harnois

Harnois commercial greenhouses are designed with commercial greenhouse expansion in mind. They can be extended after the initial installation without disrupting production—an important advantage for growers. Discover how phasing your greenhouse construction supports business growth while keeping your project on budget.   Harnois commercial greenhouses are built for long-term growth. Our structures are designed to […]

Building a Greenhouse: 7 Critical Questions to Ask First

Before building a greenhouse, every grower must answer a series of critical questions. Whether you’re planning your first commercial structure or expanding an existing operation, these 7 essential questions will help you avoid costly mistakes and set your greenhouse farming project up for long-term success. Our experts at Harnois Greenhouses have guided hundreds of growers […]