The Sigma is a compact and exceptionally strong greenhouse, measuring 3×4m (9.8 × 13 ft) with a total area of 12 m². Built with a square galvanised steel frame for faster and easier installation, it offers both resilience and convenience. With shock-resistant glazing and refined proportions, the Sigma provides reliable protection against adverse weather while creating an elegant environment for cultivation.
Key Features
- Square galvanised steel frame, profile 40 × 20 mm, engineered for strength and ease of assembly.
- 4 & 6 mm UV-protected polycarbonate panels manufactured in Europe.
- Shock-resistant polycarbonate roofing for added durability.
- Straightforward installation, supplied with all required fixings.
- Designed to protect plants from adverse weather conditions.
Technical Specifications
| Width | 3.0 m |
| Length | 4.0 m |
| Height | 2.1 m |
| Area | 12 m² |
| Frame | Square galvanised steel, 40 × 20 mm profile |
| Glazing | 6 mm UV-protected polycarbonate |
| Doors | Two single doors |
| Ventilation | Two windows, opposite ends |
| Foundation | Not required (anchors included) |
| Warranty | 5-year frame warranty and 10-year UV protection guarantee on polycarbonate. |
Applications
Compact yet practical, the Sigma is suitable for vegetables, flowers, and seedlings. Its height and clean internal layout allow for raised beds, shelving, and efficient use of growing space.
Delivery
Supplied with frame, panels, doors, and fixings. Illustrated instructions included. UK mainland delivery as standard.
Enhancements
- Roof windows
- Automatic window openers
- Galvanised steel shelving
- Professional installation
Why Premium Greenhouses
Our greenhouses are crafted in Europe with galvanised steel frames and UV-protected polycarbonate, designed to withstand the British climate.
With elegant design, reliable durability, and a range of models for every garden, Premium Greenhouses deliver quality without compromise.
Shipping Service
All greenhouses are shipped directly from our warehouse in England, ensuring fast and reliable delivery across the UK. Orders are dispatched from:
Unit 5, Upper Moorend Farm,
Mamble, Kidderminster,
Worcestershire, DY14 9JD, England
Private consultations are available by appointment, offering personalised advice to help you choose the right greenhouse for your garden.
Sigma: Strong by Design, Simple to Install.
Combines resilience, elegance, and ease.
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