1. Select Size

Size measured in feet

2. Select Treatment

2. Personalise your summerhouse

3. Add optional extras

Discover our range of BillyOh accessories that allow you to customise your very own garden building to very last detail.

Dimensions

  • Strong Tongue and Groove construction
  • Modern reverse apex design with increased headroom
  • Long, styrene glazed windows
  • Wide opening double door for easy access
  • Variable door positioning to suit your needs
  • Floor and roof included as standard
  • Complete with felt, fixtures and fittings
  • Base Coat Treated for Transit
Overall Dimensions (Includes Overhang)
image
  • (A) Width: 3.58m (11ft9)
  • (B) Depth: 2.60m (8ft6)
  • (C) Ridge: 2.34m (7ft8)
  • (D) Eaves: 1.73m (5ft8)

Testimonial

"I was truly impressed with what I received. Exactly what I wanted at the fraction of the price I was expecting to pay, added to this the delivery service was first class. I'll be recommending your service to my friends."

Why buy the Petra Summerhouse?

Superior<br/>Quality
Superior
Quality

Ensuring the BillyOh quality in every building

UK<br/>Manufactured
UK
Manufactured

20 years of garden building experience and dedication

Complete<br/>Building
Complete
Building

Floor, Tongue and Groove roof and roof felt as standard.

Extra<br/>Head-Height
Extra
Head-Height

Crouch free design, giving you the ultimate space

What is it made from?

European Sourced Timber

Our carefully sourced timber is purposely selected to ensure dependable quality.

Galvanised Ironmongery

Making your summerhouse last longer by reducing the risk of rust for years to come

Durable Tongue & Groove

Thick durable tongue and groove boards throughout.

Tear Resistant Felt

High performing waterproof felt, giving you the ultimate roof protection.

Shatterproof Glazing

Improving the structural durability and strength of your summerhouse

Adaptable Configuration

Configure how you like, with our adaptable door placement design.

And much more...

  • Modern reverse apex design
  • Long windows
  • Floor and roof included
  • Wide opening double doors
  • Interlocking timber boards
  • Green mineral roof felt
  • Easy to build
  • Shatter resistant windows
  • Pressure treated lasts longer
  • Protected during delivery
  • Fixtures and fitting included
  • Full assembly instructions

20 years of
Market Experience.
Lots of Happy Customers

Explore how we have made some of our million+ customer's happy throughout the years.
Find out below and try the Expert Reverse Apex for yourself.

Frequently Asked Questions

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

EXPAND ALL COLLAPSE ALL

Spray Treated: This building is spray treated as standard so that it can be safely delivered to you and assembled with no need to immediately treat before assembly, limiting the chance of rot before you can treat your garden building.

Pressure Treated: For a more protected building, you can opt for a pressure treated building which is an effective way of keeping the building long lasting. This is an extra step in the construction process where the wood is treated in a pressurised tank. Chemical preservatives are forced deep into the wood’s fibres to resist rot, decay and termites.

11mm: All sheds, excluding overlap, standard summerhouse, playhouses etc are made of 11mm thick cladding.

This building includes a solid sheet or tongue and groove floor and tongue and groove roof.

Roof:

11mm: Our standard roof option, this interlocking roof provides a reliable covering for any building. The Tongue and Groove not only gives your building a stronger roof but more premium look and feel.

Floor:

OSB Solid Sheet and Durellis Solid Sheet: Both value, cost effective options for flooring. These floors are suited to lighter items and light domestic use.

11mm: Our Standard flooring option which provides a durable and provides a solid foundation and underfoot to the building. The 11mm option is ideal for less demanding and frequent usage, suitable for lighter intensity purposes like summer houses and other living spaces containing light furniture. The 11mm tongue and groove timber makes this a solid yet suitable, economic option.

19mm: A premium floor is the perfect choice for higher intensity usage. The construction uses thick 19mm tongue and groove timber, which gives you not only the strength, but better insulation against the cold weather. This specific floor is the perfect option if you’re planning on using the building as an everyday use office, gym or games room with heavy objects.

The building should be treated once fully assembled and within one month of receiving the product. All the treatments we supply ensure the building will only need to be treated once a year, but always consult the directions on the treatment that you have purchased. Pressure treated buildings don't need to be treated annually but may need to be topped up in its later life.

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.

Our summerhouses and sheds are delivered in easy to assemble panels. For your convenience the panels are no wider than 4ft so they can be easily maneuverable and fit through a standard doorway. Our Log Cabins arrive as individual boards that are designed to slot together.

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.

Dimensions 12 x 8 10 x 8 Pressure Treated 16 x 8 12 x 10 12 x 8 Pressure Treated 16 x 8 Pressure Treated 16 x 10 12 x 10 Pressure Treated 16 x 10 Pressure Treated 20 x 10 20 x 10 Pressure Treated
Width 358.2cm 299.6cm 475.4cm 358.2cm 358.2cm 475.4cm 475.4cm 358.2cm 475.4cm 592.6cm 592.6cm
Depth 259.8cm 259.8cm 259.8cm 318.3cm 259.8cm 259.8cm 318.3cm 318.3cm 318.3cm 318.3cm 318.3cm
Width (Internal) 346cm 287.4cm 463.2cm 346cm 346cm 463.2cm 463.2cm 346cm 463.2cm 580.4cm 580.4cm
Depth (Internal) 234.4cm 234.4cm 234.4cm 293cm 234.4cm 234.4cm 293cm 293cm 293cm 293cm 293cm
Ridge Height (Inc Floor) 234cm 234cm 234cm 247cm 234cm 234cm 247cm 247cm 247cm 247cm 247cm
Eaves Height (Inc Floor) 173.2cm 173.2cm 173.2cm 173.2cm 173.2cm 173.2cm 173.2cm 173.2cm 173.2cm 173.2cm 173.2cm
Ridge Height (Internal) 229.3cm 229.3cm 229.3cm 242.4cm 229.3cm 229.3cm 242.4cm 242.4cm 242.4cm 242.4cm 242.4cm
Eaves Height (Internal) 175.4cm 175.4cm 175.4cm 175.4cm 175.4cm 175.4cm 175.4cm 175.4cm 175.4cm 175.4cm 175.4cm
Door Opening Size (w x h) 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm 114.8cm x 163.9cm
Door Width 58.3cm 58.3cm 58.3cm 58.3cm 58.3cm 58.3cm 58.3cm 58.3cm 58.3cm 58.3cm 58.3cm
Door Height 164.5cm 164.5cm 164.5cm 164.5cm 164.5cm 164.5cm 164.5cm 164.5cm 164.5cm 164.5cm 164.5cm
Materials 12 x 8 10 x 8 Pressure Treated 16 x 8 12 x 10 12 x 8 Pressure Treated 16 x 8 Pressure Treated 16 x 10 12 x 10 Pressure Treated 16 x 10 Pressure Treated 20 x 10 20 x 10 Pressure Treated
Glazing Material Styrene Styrene Styrene Styrene Styrene Styrene Styrene Styrene Styrene Styrene Styrene
Floor Material 10mm Durellis Solid Sheet 10mm Durellis Solid Sheet 10mm Durellis Solid Sheet 11mm Tongue and Groove 10mm Durellis Solid Sheet 10mm Durellis Solid Sheet 11mm Tongue and Groove 11mm Pressure Treated Tongue and Groove 11mm Pressure Treated Tongue and Groove 11mm Tongue and Groove 11mm Pressure Treated Tongue and Groove
Roof Material 11mm Tongue and Groove 11mm Pressure Treated Tongue and Groove 11mm Tongue and Groove 11mm Tongue and Groove 11mm Pressure Treated Tongue and Groove 11mm Pressure Treated Tongue and Groove 11mm Tongue and Groove 11mm Pressure Treated Tongue and Groove 11mm Pressure Treated Tongue and Groove 11mm Tongue and Groove 11mm Pressure Treated Tongue and Groove
Roof Covering Material Green Mineral Felt Green Mineral Felt Green Mineral Felt Green Mineral Felt Grey Roll on Shingles Green Mineral Felt Green Mineral Felt Grey Roll on Shingles Green Mineral Felt Green Mineral Felt Green Mineral Felt
Features 12 x 8 10 x 8 Pressure Treated 16 x 8 12 x 10 12 x 8 Pressure Treated 16 x 8 Pressure Treated 16 x 10 12 x 10 Pressure Treated 16 x 10 Pressure Treated 20 x 10 20 x 10 Pressure Treated
Windows 6 Windows All Fixed 6 Windows All Fixed 8 Windows All Fixed 6 Windows All Fixed 6 Windows All Fixed 8 Windows All Fixed 8 Windows All Fixed 6 Windows All Fixed 8 Windows All Fixed 10 Windows All Fixed 10 Windows All Fixed
Factory Basecoat Treatment Red Cedar Water Based Treatment for Transit Pressure Treated Red Cedar Water Based Treatment for Transit Red Cedar Water Based Treatment for Transit Pressure Treated Pressure Treated Red Cedar Water Based Treatment for Transit Pressure Treated Pressure Treated Red Cedar Water Based Treatment for Transit Pressure Treated
Shed Type large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed large sheds workshops, Large Shed
Roof Style Reverse Apex Reverse Apex Reverse Apex Reverse Apex Reverse Apex Reverse Apex Reverse Apex Reverse Apex Reverse Apex Reverse Apex Reverse Apex
Cladding Style Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove
Please Note: This product has been designed as an affordable solution to most popular light domestic uses. All products supplied self assembly flat packed unless otherwise stated.