Tunnel Greenhouse Building – 30x40x12 & 30x80x12 FT Heavy-Duty Hoop House Structure

Industrial Tunnel Greenhouse – 30’ × 40’ & 30’ × 80’

Strong, Spacious, and Built for Long-Term Use

The Industrial Tunnel Greenhouse is engineered for growers who need durability, space, and consistent performance. Built with a heavy-duty galvanized steel structure and covered with high-clarity EVA greenhouse film, this tunnel greenhouse creates a controlled growing environment ideal for commercial operations, market gardens, and serious hobby growers.

Designed to extend the growing season and protect crops from wind, rain, pests, and temperature swings, this greenhouse delivers professional-grade strength with practical, easy-to-install components.

Key Features

Durable Structural Design

• Heavy-duty galvanized steel frame for long-term outdoor use

• Reinforced truss arches and horizontal purlins for superior strength

• Reduced bay spacing for added rigidity and wind resistance

• Pre-drilled footplates for straightforward installation and anchoring

Optimized Growing Environment

• 6-mil clear EVA plastic greenhouse film

• 92–96% light transmittance for maximum plant growth

• 20% light diffusion to reduce crop stress

• 80% thermal effect to help regulate interior temperatures

• Anti-fogging and anti-drip properties for consistent light and moisture control

Ventilation & Accessibility

• Full-length roll-up sides for airflow and condensation control

• Manual hand-crank system for easy adjustment

• Two large bi-parting swing doors on each end for convenient access

• Tall peak ceiling height for improved air circulation and headroom

Secure Film Installation

• Aluminum lock channels and wiggle wires included

• Allows fast, secure attachment of greenhouse film

• Makes future film replacement simple and efficient

Additional Notes

• Designed for use with treated wood side bases (not included)

• Foundation required: concrete slab, solid wood base, or equivalent

• Greenhouse film lifespan: approximately 36 months under normal conditions

• Replacement covers are available for purchase separately

Specifications

• Available Sizes:

  • 30’ (W) × 40’ (L) × 12’ (H)

  • 30’ (W) × 80’ (L) × 12’ (H)

• Peak ceiling height: 12’

• Truss arches: Ø2.3” – 15 gauge

• Horizontal purlins: Ø1.65” – 17 gauge

• Bay spacing: approximately 50”

• Sidewall height: approximately 5’ at arch

• Roll-up sides: 4’ hand-crank system

• Doors: Bi-parting swing doors, 88” W × 78” H (both ends)

• Anchoring: Sleeve anchor bolts included

• Frame finish: Heavy-duty galvanized steel

• Film attachment: Aluminum lock channels and wiggle wires

Not Included: Horizontal 1” × 6” treated wood side boards

Greenhouse Cover Details

• Material: 6-mil clear EVA plastic film

• Light transmittance: 92–96%

• Light diffusion: 20%

• Thermal retention: 80%

• Anti-fogging and anti-drip treatment

• Expected lifespan: up to 36 months under normal use

Frequently Asked Questions

Q: Will this cover fit my existing greenhouse frame?
A: This greenhouse cover is designed to fit standard 30×40×12 FT or 30×80×12 FT hoop-style greenhouse frames with similar arch spacing and peak height. Customers should measure their frame dimensions and layout before ordering to confirm compatibility.

Q: Is this a complete greenhouse or a replacement cover?
A: This listing applies to the greenhouse structure and cover as specified. Replacement covers are also available separately for customers who already have a compatible frame.