GrowSpan cold frames, also known as hoop buildings, are ideal for starting seedlings or transitioning greenhouse plants prior to outdoor planting.
- Easy to assemble; no drilling or welding.
- 4' rafter spacing.
- Heavy gauge USA-made, triple-galvanized structural steel tubing.
- Ground posts and purlins on all models.
- Round style hoop building frame.
- Baseboard is recommended. Our recycled plastic lumber, sold separately, comes with a 50 year warranty and is ideal.
Please Note: Greenhouse film is sold separately below.