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Polyethylene “Poly” Plastic
Covers & Films

Polyethylene “Poly” Plastic

From $700Select a size below to lock in the price.

Pre-cut UV-stabilized greenhouse poly film, sized to the full envelope of a Sun & Steel high tunnel. Four stock packages: 55 ft x 40 ft 6 mil ($700), 55 ft x 40 ft 8 mil ($1,200), 105 ft x 40 ft 6 mil ($1,000), and 105 ft x 40 ft 8 mil ($2,000).

We Got You Covered.


Pre-calculated greenhouse film coverage packages designed to simplify material planning and reduce waste. Built around a standard tunnel structure, these options provide full-envelope coverage—including roof, sidewalls, and end walls—ensuring efficient installation and consistent protection for your growing environment.

Technical Specifications

Product Type: Greenhouse Film Coverage Package
Material: 6 mil greenhouse-grade polyethylene film

Structure Compatibility:

  • Designed for standard tunnel greenhouse frames

  • Covers full structure including roof, sidewalls, and both end walls

Configuration Options:

  • Multiple length options available to match common greenhouse builds

  • Each option sized for complete structural coverage

Coverage Calculation:

  • Net square footage accounts for total surface area of the structure

  • Additional material allowance included to accommodate overlap, securing, and installation waste

Film Properties:

  • UV-stabilized for extended outdoor lifespan

  • Resistant to tearing and environmental stress

  • Flexible for easy installation over curved and flat surfaces

Performance:

  • Provides reliable light transmission for optimal plant growth

  • Acts as a protective barrier against wind, rain, and external elements

  • Maintains durability across seasonal temperature changes

Installation:

  • Designed for straightforward application over steel or rigid frames

  • Compatible with standard fastening systems such as wiggle wire, channels, or clamps

  • Allows for secure tensioning and long-term hold

Applications:

  • Commercial greenhouses

  • Nurseries and propagation structures

  • Seasonal and year-round growing environments

Packaging:

  • Supplied in pre-measured coverage packages

  • Optimized for transport, storage, and job-site efficiency

Optional Accessories:

  • Wiggle wire and channel systems

  • Repair tape and patch kits

  • Shade cloth or secondary coverings for climate control

Available packages

  • 55 ft x 40 ft — 6 mil: $700 — fits a 50 ft Standard high tunnel.
  • 55 ft x 40 ft — 8 mil: $1,200 — fits a 50 ft Heavy high tunnel.
  • 105 ft x 40 ft — 6 mil: $1,000 — fits a 100 ft Standard high tunnel.
  • 105 ft x 40 ft — 8 mil: $2,000 — fits a 100 ft Heavy high tunnel.

All packages are UV-stabilized greenhouse-grade poly film. The 3D configurator picks the correct length and mil thickness automatically based on the building size and Standard / Heavy selection.