TUBE Arch Greenhouse 3 x 4 m (12 m2)

KLASIKA Tube Greenhouse

The Baumera KLASIKA Tube Greenhouse combines classic arched design with a reinforced tubular frame for outstanding strength and stability. Designed and made in Lithuania, it offers a bright, warm, and weather-resistant space suitable for year-round growing in British conditions.

Strong tubular steel construction

The frame is made from 1 mm thick galvanised steel with a 20 x 20 mm square tube profile and a zinc coating of 275 g/m². This solid structure ensures long-lasting corrosion resistance and reliable performance without the need for extra foundations. Each arch is spaced approximately 67 cm apart and anchored 30 cm into the ground for maximum stability.

Practical, adaptable design

• 3 m wide and 2.18 m high, extendable in 2 m sections
• 4 mm or 6 mm twin-wall polycarbonate panels with 10-year warranty*
• Doors with upper and lower openings plus rear ventilation window
• 100 mm wide base frame with stiffening rib for strength
• Assembly using the simple KRAB connector system with M5 bolts

Optimised for light and weather resistance

The arched roof allows snow to slide off naturally, while the polycarbonate glazing ensures even light distribution and excellent insulation. The structure’s generous width and height provide ample room for tall plants and hanging supports.

Certified European quality

Every KLASIKA Tube Greenhouse carries CE certification and complies with EN 1090-1:2009+A1:2011 and EN10346: DX51D+Z standards for galvanised steel production. This guarantees a durable, high-quality product you can trust for many years.

Included in the box

• Galvanised 20 x 20 x 1 mm tubular steel frame
• Base frame with stiffening rib
• 4 mm or 6 mm polycarbonate panels
• All fixings, gaskets, and aluminium sealing strip
• Doors, ventilation window, and assembly manual

Maintenance is straightforward: clean the panels with mild detergent, avoid sulphur-based disinfectants, and remove snow build-up in winter. When properly assembled, the polycarbonate panels are guaranteed for 10 years under standard outdoor conditions.

Choose the Baumera KLASIKA Tube Greenhouse for lasting durability, clever design, and efficient light performance—shop online today.