Specialty Structures

Multi-Purpose Space

This is a category of structures dedicated and limited only by your imagination. Prospiant designs specialty structures to create a personalized look for a business or to solve an architectural desire. A specialty structure is whatever YOUR imagination can dream up!

  • Dormers
  • Hipped Roofs
  • Covered walkways and Canopies
  • Roof Cupolas
  • Unique Entryways
  • Roof-top Restaurant Greenhouses
  • Even a greenhouse growing operation on a barge!

Across our nation we have designed some of the most beautiful retail garden centers incorporating many of the above concepts. Prospiant can design your retail garden center with spacious interiors using vaulted trusses and rigid frames or by eliminating columns for better display space and wider shopping aisles.

Whatever your imagination considers, we can design and build for you. Just call us and give us your vision and we will make it happen.


  • Custom design and engineering* to your specifications and budget
  • Unique spaces and personalized designs
  • constructed to meet regional snow and wind load conditions.
  • Versatile, strong design — supports a variety of uses
  • One-piece, factory welded, high-clearance trusses
  • Aluminum flashings and extrusions

Contact Sales

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Commercial Brochure

Overview of our greenhouses in public gardens, retail garden centers, schools, universities, and research institutions.

Case Study: Greenhouse Research Facility – The University of Nevada

Read about our new University of Nevada, Reno, Greenhouse Research Facility.

Produce Brochure

Overview of our greenhouse offering for produce growers.

Case Study: White Oak Garden Center

Read our case study on the White Oak Garden Center in Cincinnati, OH

Standard sizes

  • Widths: 15′, 24′, 30′, 35′ 6″, 41′ 6″
  • Sidewall Height: 8’
  • Bay Spacing: 10′, 12′
  • Load Ratings: 10psf, 15psf, 20psf, 30psf
  • Non-standard widths, heights and loads can be designed
  • One-piece, factory welded, high-clearance trusses
  • High-strength Tenzaloy Column caps and gutter saddles
  • Aluminum flashings and extrusions

2″ sq. steel purlins and 3″ sq. steel internal and external columns are predrilled

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