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Norhage Vegg 300 10x20 Wooden Lean-To Greenhouse

  • Impregnated Swedish pine frame
  • Solid plywood Gothic arches
  • 6mm twin-wall polycarbonate glazing
  • 3000mm (9ft 10") wide x 6000mm (19ft 8") long
  • Ridge height 2650mm (8ft 8")
  • 18 square metres of growing space
  • Wall-mounted lean-to, no back wall included
  • Door 1010mm x 2020mm
  • Window on the rear gable
  • Upgrade to 10mm or 16mm polycarbonate
  • 280 kg per square metre snow load
  • 25 m/s wind rating
  • Free delivery within 5 weeks
Norhage Vegg 300 10x20 lean-to greenhouse dimensions diagram

Greenhouse Dimensions

Greenhouse width

3000mm (9′ 10″) (9ft 10")

Greenhouse length

6000mm (19′ 8″) (19ft 8")

Ridge height

2650mm (8′ 8″) (8ft 8")

Door size

1010mm (3′ 3″) x 2020mm (6′ 7″) (3ft 4" x 6ft 8")

Growing area

18 square metres

Minimum base size

3000mm (9′ 10″) x 6000mm (19′ 8″)

Customise your Greenhouse

Polycarbonate Thickness

Choose your thickness of Polycarbonate.

6mm Poly
+ £0

Great for adding insulation to your lean-to, but opaque.

10mm Poly
+ £299

For that bit of extra insulation, upgrade to 10?mm polycarbonate.

16mm Poly
+ £649

For the ultimate in safety and insulation.

Polycarbonate Thickness information

Choose your thickness of Polycarbonate.

6mm Polycarbonate - £0.00
6mm Polycarbonate

Great for adding insulation to your lean-to, but opaque.


10mm Polycarbonate - £299.00
10mm Polycarbonate

For that bit of extra insulation, upgrade to 10?mm polycarbonate.


16mm Polycarbonate - £649.00
16mm Polycarbonate

For the ultimate in safety and insulation.


Add Roof Ventilation?

Add roof ventilation to your Norhage greenhouse.

Roof Vent
+ £130

Designed to ensure optimal air circulation inside your greenhouse.

Qty 1
Automatic Roof Vent Opener
+ £95

Upgrade to 10mm polycarbonate for extra insulation.

Qty 1

Roof Ventilation information

Add roof ventilation to your Norhage greenhouse.

Roof Vent - £130.00
Roof Vent

Designed to ensure optimal air circulation inside your greenhouse.


Automatic Roof Vent Opener - £95.00
Automatic Roof Vent Opener

Upgrade to 10mm polycarbonate for extra insulation.


The Norhage Vegg 300 10x20 is the longest lean-to in the range, at six metres.

Eighteen square metres turn a long wall into a proper growing house. The 6mm twin-wall polycarbonate holds heat, with 10mm and 16mm upgrades for colder plots. The pine frame is pressure treated, so it resists rot without yearly painting. Full standing height runs the whole length against the wall. This is the Vegg 300 for a smallholding or a keen kitchen garden.

The Vegg 300 has no back wall. It mounts against an existing wall, so check yours is sound and can take the weight.

  • 3000mm (9ft 10") Wide Wooden Lean-To Greenhouse - Mounts against a sunny wall or fence.
  • 6000mm (19ft 8") Long - Eighteen square metres of covered growing.
  • Impregnated Swedish Pine Frame - Pressure treated before it leaves the factory.
  • Solid Plywood Gothic Arches - The curved roof sheds rain and snow off the wall.
  • 6mm Twin-Wall Polycarbonate - Traps a layer of air to hold the heat in.
  • 10mm and 16mm Upgrades - Thicker glazing for colder or exposed plots.
  • Ridge Height 2650mm (8ft 8") - Full standing room against the wall.
  • Wall-Mounted, No Back Wall - Uses your existing wall as the fourth side.
  • Door 1010mm x 2020mm (3ft 4" x 6ft 8") - Wide enough for a wheelbarrow.
  • Window on the Rear Gable - Opens for airflow and a through-draught with the door.
  • 280 kg/m² Snow Load - Engineered for Nordic winters.
  • 25 m/s Wind Rating - Holds up on an exposed plot.
  • Free Delivery - Within 5 weeks of order.
Norhage Vegg 300 10x20 lean-to greenhouse dimensions diagram

Greenhouse Dimensions

Greenhouse width

3000mm (9′ 10″) (9ft 10")

Greenhouse length

6000mm (19′ 8″) (19ft 8")

Ridge height

2650mm (8′ 8″) (8ft 8")

Door size

1010mm (3′ 3″) x 2020mm (6′ 7″) (3ft 4" x 6ft 8")

Growing area

18 square metres

Minimum base size

3000mm (9′ 10″) x 6000mm (19′ 8″)