Season Extension
High Tunnel / Hoop House
Unheated greenhouse structure for extending growing season 4-6 weeks on each end
Quick Stats
Difficulty Intermediate
Est. Cost $1,500 - $8,000
Lifespan 15 years
Permits Usually not required if temporary structure
Size & Materials
Size Requirements
14x48 ft minimum for commercial, 10x20 ft for home gardens
Materials Needed
Steel or PVC frame, 6-mil greenhouse plastic, ground posts
Benefits
- Year-round growing
- pest protection
- higher yields
Considerations
- Initial cost
- ventilation management
- plastic waste
Planning Details
Best Placement
North-south orientation, level ground, good drainage
Climate Considerations
Snow load rating important in northern zones
Maintenance
Annual plastic replacement, monthly inspection
Permits Required
Usually not required if temporary structure
Cost Overview
$1,500 - $8,000
Estimated range for materials and basic setup
DIY: Intermediate
Lifespan: 15 years
Planning Tips
- Research local building codes and HOA restrictions before starting.
- Consider future expansion when choosing location and size.
- Factor in access for maintenance and material delivery.