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Our most accessible frame
Simply Grow
Arched tunnel
Best for A first greenhouse over raised beds
A light arched tunnel greenhouse with a 20 × 20 mm galvanized frame — an easy first greenhouse for vegetable beds.
Your selected size
- Footprint
- 3 × 4 m
- Floor area
- 12 m²
- Panel thickness
- 4 mm
Ask for a delivery estimate for your location
SKU SP-3x4-4
- Curbside freight delivery to the contiguous US.
- Real people answer sizing and delivery questions.
Made for your garden
Meet the Simply Grow
Gardeners buying their first greenhouse who want a simple tunnel over raised beds without a large budget.
Built-in benefits
20 × 20 mm galvanized frame
Bolted steel arches you can assemble with hand tools.
Arched tunnel profile
Curved roof sheds rain and gives full-height space down the centre aisle.
Doors at both ends
End doors for access and cross-ventilation on warm days.
Specifications
- Frame material
- Galvanized steel
- Covering
- Twin-wall polycarbonate
What’s included
- Frame, polycarbonate panels, doors and fixings
- Assembly instructions
Need help choosing a size?
Tell us about your garden and what you want to grow.
Compare with
Photo 1 of 5
Straight-wall arch
Grow Master 300
Best for Shelving and tall crops along the walls
From$1,349
View greenhouse
