Why buy the BillyOh Lean-To Greenhouse?


Ensuring the expert quality in every purchase.

Tough<br/>Aluminium Framing
Aluminium Framing

A strong and solid frame for your greenhouse.


Crouch free design, giving you the ultimate space.


For ease of access and protection from slamming.

What is it made from?

Tough Aluminium Framing

Strong framing gives a strong overall structure to your greenhouse.

Opening Roof Vent

The opening roof vent gives great air circulation throughout the year.

Twin-wall Polycarbonate

The glazing diffuses sunlight and spreads it around the interior, protecting your plants from excessive heat.

Shatterproof Glazing

Improving the structural durability and strength of your greenhouse.

Base Included

Galvanised steel base is included as standard to give a strong base to the building.

Panoramic Windows

Allows light to reach the interior throughout the day to get the most out of the sun.

And much more...

  • Lean-To design
  • Strong design
  • Double doors
  • Twin-wall glazing
  • Integrated roof vent
  • Panoramic windows
  • Aluminium framing
  • Attention to detail
  • Easy to build
  • Fixtures and fittings included
  • Full assembly instructions
  • 20 years experience
Dimensions 4 x 8 Green 4 x 8 Grey 4 x 10 Green 4 x 10 Grey
Width 125cm 125cm 125cm 125cm
Depth 192cm 252cm 312cm 312cm
Width (Internal) 122cm 122cm 122cm 122cm
Depth (Internal) 184cm 244cm 304cm 304cm
Eaves Height (Inc Floor) 135cm 135cm 135cm 135cm
Ridge Height (Inc Floor) 221cm 221cm 221cm 221cm
Eaves Height (Excl Floor) 127cm 127cm 127cm 127cm
Ridge Height (Excl Floor) 213cm 213cm 213cm 213cm
Door Opening Size (w x h) 55cm x 159cm 55cm x 159cm 55cm x 159cm 55cm x 159cm
Door Width 60cm 60cm 60cm 60cm
Door Height 161cm 161cm 161cm 161cm
Materials 4 x 8 Green 4 x 8 Grey 4 x 10 Green 4 x 10 Grey
Frame material Aluminum Aluminum Aluminum Aluminum
Cover Material Hollow Polycarbonate Hollow Polycarbonate Hollow Polycarbonate Hollow Polycarbonate
Base Material Galvanized Steel Base Galvanized Steel Base Galvanized Steel Base Galvanized Steel Base
Glazing Material Polycarbonate glazing Polycarbonate glazing Polycarbonate glazing Polycarbonate glazing
Features 4 x 8 Green 4 x 8 Grey 4 x 10 Green 4 x 10 Grey
Number of Opening Vents? 1 1 2 2
Colour Green Grey Green Grey
Greenhouse Style Lean-to Greenhouse Lean-to Greenhouse Lean-to Greenhouse Lean-to Greenhouse
Please Note: All products supplied self assembly flat packed unless otherwise stated.

Below you'll find answers to the questions we get asked the most about our products.


  • All around polycarbonate glazing

  • Rust free metal framing

  • Built in guttering

  • Galvanised steel base

  • All fixtures and fittings

  • Comprehensive assembly instructions

Yes! This greenhouse includes a strong, galvanised steel base, to give your greenhouse the perfect foundation that will resist rust and keep your building sturdy for years to come.
Yes, a great feature of the Lean-To Greenhouse is the Adjustable Roof Vent installed on the roof. The opening roof vent allows you to better control the ventilation and air circulation inside your greenhouse, helping you to effectively grow your plants. The vent also allows you to regulate the temperature, so you can prevent overheating and help your plants to cultivate healthily.
The roof and windows of the greenhouse are built with twin wall polycarbonate sheeting, a durable and strong plastic, with two layers for added durability and insulation. Polycarbonate glazing is stronger than traditional glass, so you will not need to worry about it easily shattering and requiring replacement. The polycarbonate sheets allow natural lighting into the inside and allows enough heat for the plants to grow, so you can achieve the best growing results from your own garden!

Integrated Guttering - To effectively move water away from the entrance of the building.

Sliding Door - This will help to prevent the door from slamming in harsh weather.

Roof Vent - This helps to regulate temperature and air flow to your plants.

Rust Free Framing - Aluminium framing gives peace of mind when it comes to rust.

If the building is shorter than 2.5m tall you should not require planning permission, (unless it’s more than 50% of your garden or to be put in your front garden). Planning permission rules can vary by area so we would strongly recommend checking your local council rules before ordering from us.
We do not offer an installation service on any of our buildings, our buildings are designed & made to be easy and simple to assemble. Using the assembly instruction included and with a team of just 2 people and a bit of DIY knowledge you can expect to have your BillyOh building up within a day, or as little as 3-4 hours with some of our smaller buildings.
Your order can be tracked through the account section on our website or by contacting us directly. You will be contacted after your order by our helpful care team to arrange delivery of your building.

We offer a pay by finance option on any purchase over the value of £560.

Our simple finance options allow you to spread the cost of your purchase over 24, 36 or 48 months.Read more about our Pay by Finance option here.