SL Series Greenhouse has an aluminum frame. It is great for research, retailers, and institutions needing a high-quality structure that will last a very long time. 
 
Construction:
- Aluminum structural shapes
- Post: structural I-beam shape
- Trusses: structural T or angles, center line design
- Purlins: angle, channel, or I-beam
- Bracing: roof and sidewall wind X-bracing, gable bracing, and longitudinal truss bracing
 
Sizes: 
- Standard widths: 18, 25, 32, 38, 42, and 50 feet
- Standard lengths: increments of 10 and 12 feet; full length can be multiple of chosen bay size
- Standard sidewall heights: 8, 10, or 12 feet; higher sidewalls available
- Custom widths and lengths are available
 
Glazing Options:
- Glass (annealed, tempered, or laminated)
- 8mm or 16mm acrylic structured sheet
- 8mm polycarbonate sheet in 4 or 6 foot bar spacing
- 16mm polycarbonate structured sheet
- corrugated polycarbonate
- corrugated metal
- shade cloth
 
Returns are subject to at least a 30% restocking fee, plus any manufacturer's fees.