Harnois Industries

Cold Frame Ground-to-Ground Greenhouse

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Growers often need additional space for crops or a protected area for plants outside the greenhouse production range. The Ovaltech individual tunnel is a quick and economical way to increase the covered area of your operation.

Commonly called a 'cold frame', the tunnel is useful:

  • To provide an ideal environment for the hardening of perennials and shrubs
  • To de-clutter the main production greenhouses, especially when plants are awaiting shipment
  • To provide a protected area for finishing plants (so they can reach market size) without overcrowding and damaging leaves or flowers
  • To overwinter perennials, shrubs and trees in temperate climates

Features:

  • 20' wide
  • 5' arch spacing
  • Oval tube 1-1/8'' x 1-3/4'
  • Made of North American Galvalume steel that offers superior protection against corrosion
  • Designed to be covered with a single layer of polyethylene film
  • Simple and easy to assemble without permanent anchors
  • Side ventilation with manual roll-up system
  • Handcrank with safety stop mechanism
  • Hardware for wood gable end framing is included (wood to be supplied by purchaser)

Uses:

  • Horticultural production: perennials, annuals, nursery
  • Temporary retail space
  • Production of vegetables, fruits, herbs, organic or conventional on a small surface

Options:

  • Steel gable ends
  • Single or double hinged door

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