BillyOh Master Tongue and Groove Pent Shed

The BillyOh Master Tongue and Groove Pent Shed serves as an ideal storage building with a strong, durable T&G build. With a stylish and modern look it's sure to fit in any space. Complete with Floor, Roof and Felt as standard.

1. Select Size

Size measured in feet

2. Select Treatment

Spray Treated

Treated with a beautiful golden brown spray treatment which colours and protects during transit. Designed to last through shipping and assembly, we do recommend treating the wood after installation to protect it.

Pressure Treated

For increased longevity you can opt for pressure treatment. In a pressurised tank chemical preservatives are forced deep into the wood’s fibres to resist rot or decay. Upgrading to Pressure Treated means you also get an extended 15 year guarantee.

2. Personalise your shed

3. Add Extras

Complete your building with optional shelving, guttering, base options, assembly kits and more.

Finance from ... a month
Finance Calculation for your £1,439.00 order

Deposit Amount of 10% = ...

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Total Cash Price £00.00
Total Amount of Credit £00.00
Deposit £00.00
Interest Rate 12.9% p.a.fixed
Total Amount Payable £000.00
Total Charge fo Credit £00.00
APR representative 12.9%
Monthly Repayment( ) £00.00


  • Tongue & Groove walls for added strength and durability
  • Wide opening double doors for easy access
  • Optional Shelving for extra vertical space
  • Modern pent roof design for optimal water run-off
  • 11mm Floor & Roof as standard
  • Complete with felt, fixtures and fittings
  • Base Coat Treated for Transit
Overall Dimensions (Includes Roof Overhang)
  • (A) Width: 1.24m (4ft1)
  • (B) Depth: 1.89m (6ft3)
  • (C) Ridge: 1.82m (6ft)
  • (D) Eaves: 1.52m (5ft)

Why buy the Master Pent Shed?

10 Year<br/> Anti-Rot Guarantee
10 Year
Anti-Rot Guarantee

Protects the wood on your building against rot and decay.

UK<br/> Manufactured

Over 20 years of experience in design and production.

Easy to<br/> Assemble
Easy to

Quicker and easier to build, the Master Pent is delivered in handy pre-assembled panels.

Complete<br/> Building

11mm Tongue and Groove roof, floor and green mineral felt roof covering.

Key Features

Durable Tongue & Groove Throughout

Constructed using high-quality timber panels that interlock together, Tongue and Groove cladding creates a strong, stable and weatherproof structure with a stylish finish.

Wide Double Doors

Featuring a wide and central double door entrance, you can conveniently move any of your larger furniture or items with ease.

Durable Tongue & Groove

The Tongue and Groove boards interlock with one another to form a tight seal offering high quality weather protection.

Key features
Green Mineral Felt

Quick and easy to apply, our premium mineral felt is durable and protects your building against harsh weather.

Windowless Design

Increased security with windowless panels for extra peace of mind.

Tongue and Groove Roof & Floor

The heavy-duty and hard-wearing boards provide a solid underfoot and robust ceiling.

Master Customer Testimonials

Wynne Read all Master Customer Testimonials
Michael Read all Master Customer Testimonials

Frequently Asked Questions


The BillyOh guarantee covers this building against:

  • rot
  • decay
  • insect infestation

Please note: The guarantee does not cover timber splits or warping which may occur naturally over time.

Duration of Guarantee:

  • Tongue and Groove Buildings - up to 10 years
  • Log Cabins - up to 10 years
  • Pressure Treatment Buildings - up to 15 years

For more information about BillyOh Guarantee, please visit our terms and conditions

  • 11mm Tongue & Groove wall panels

  • 11mm Tongue & Groove Floor

  • 11mm Tongue & Groove Roof

  • Green mineral felt

  • All fixtures and fittings

  • Comprehensive assembly instructions

Our sheds and summerhouses get a beautiful golden brown spray treatment before leaving the factory in order to preserve the quality of the wood. As this only lasts through the transit stage, we do recommend treating the wood after installation to protect it.

Constructed from thick panels which interlock together, tongue and Groove creates a strong and stable structure that is designed to offer protection against the elements. This method of construction provides you with a strong and dependable building which is built to last.

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

With the Master Pent an 11mm tongue and groove floor and roof is included but you can upgrade to 19mm to suit more intensive use.


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 also a premium look and feel.


11mm: Our Standard flooring option which provides a durable, 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, economical 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.

All garden buildings should be assembled on a firm and level base. A base will ensure your building has a solid, long-lasting and well-drained foundation.

If you want to build your own base, from a sturdy material such as concrete or flagstones, you can find minimum dimensions for each size of this building in the tech specs. In order to protect your building from moisture, you should leave a 2ft gap around the exterior of your building, so remember to take this into consideration when laying any sort of base.

Our robust and simple to use EcoBase provides you with a firm, long-lasting foundation with suitable drainage for your garden building. It is quick and easy to install through the use of snap connectors that link the grids to each other.

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, as they are designed to be easy and simple to assemble. Using the digital assembly instructions included in your order confirmation and with a team of at least 2 people, the handy pre assembled panels mean you will have your BillyOh building up in no time!

Our sheds and summerhouse 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. Glazing and any additional wood is delivered in separate, clearly labeled packages.

Your order can be tracked through the account section on our website or by contacting us directly. You will be contacted after your order via your online account, email or text to provide updates on delivery dates.

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.

BillyOh Master Pent Shed

The master pent works as an ideal garden storage shed, and with sizes ranging from a 4x6 to a 12x6 shed, you can choose the perfect size for your garden and storage needs. This pent shed is windowless to provide increase privacy and security. The pent roof also offers a tall and accessible entrance with increased headroom at the front and a modern style.

Smaller buildings are great for use an outdoor bike shed, BBQ storage, or garden tool shed. Larger buildings like a 12x6 pent shed offer you more space and better access to all of your possessions and the possibility of using your shed as a garden studio or even a workshop. Shed shelves are a great addition to this building, increasing your vertical storage capabilities and making the most of the wall space and height.

This storage solution comes with an 11mm tongue and groove roof, and floor included as standard, giving it strong and durable construction. The floor can also be upgraded to a more robust 19mm floor. To increase the strength of your building further, we offer a pressure treatment service that will improve the weather resistance of the building while also increasing your BillyOh Guarantee to 15 years. All sizes of this building include green mineral felt as standard to help keep your items clean and dry.

Garden Sheds (Storage Sheds)

With wide-opening double doors, this range of garden sheds is perfect for taking garden equipment in and out of storage. Plus, the Master Pent's design makes it ideal for use as a windowless security shed for more expensive items.

Pent Design Roof Style

The pent roof design features no roof overhang unlike an apex or reverse apex model, yet allows for adequate runoff due to the sloping single plane construction. Pent roof sheds offer a more modern and contemporary silhouette and this pent shed includes green mineral roof as standard for further weatherproofing.

External Cladding

The Master Pent utilises a durable tongue & groove timber cladding style for the premium floor, roof, and walls. Tongue and groove cladding can be upgraded as just one of the many optional extras available with this quality product. The Master Pent also features galvanised steel ironmongery for all hinges, latches and fixings to prevent against rust and corrosion.

Assembly Kits and Foundation

Your Master Pent shed will be provided with comprehensive assembly instructions. Simply set out a solid base and grab a friend and you can have your pent shed up in a matter of hours. A level base might include the Eze Base, Ecobase or bearers that are available as extras with this purchase, or your own concrete base.


Our BillyOh tongue and groove sheds come with a 10-year guarantee protecting this building against rot, insect infestation, and decay. Pressure-treating this model increases the overall protection and thus, this guarantee to 15 years.

Planning Permission

The ridge height and eaves height of the Master Pent are built with UK planning permission rules in mind. As such you won't require planning permission for the Master Pent due to its height. We suggest you check local council rules for any other stipulations.

Garden Buildings Direct - Delivery

Get your garden building sooner rather than later with our fast and free delivery service to most of mainland UK. You can have you BillyOh building in as little as 2 - 5 weeks! What are you waiting for?

Dimensions 4 x 6 8 x 6 10 x 6 12 x 6
Width 123.8cm 241cm 299.6cm 358.2cm
Depth 189.4cm 189.4cm 189.4cm 189.4cm
Eaves Height (Inc Floor) 151.7cm 151.7cm 151.7cm 151.7cm
Eaves Height (Internal) 151.1cm 151.1cm 151.1cm 151.1cm
Ridge Height (Internal) 175.4cm 175.4cm 175.4cm 175.4cm
Eaves Height (Excl Floor)
Ridge Height (Inc Floor) 181.7cm 181.7cm 181.7cm 181.7cm
Door Opening Size (w x h) 97.3cm x 164.2cm 97.3cm x 164.2cm 97.3cm x 164.2cm 97.3cm x 164.2cm
Ridge Height (Excl Floor)
Door Height 170cm 170cm 170cm 170cm
Door Width 47.9cm 47.9cm 47.9cm 47.9cm
Width (Internal) 111.6cm 228.8cm 287.4cm 346cm
Depth (Internal) 175.8cm 175.8cm 175.8cm 175.8cm
Minimum Base Width 119cm 237cm 295cm 354cm
Minimum Base Length 184cm 184cm 184cm 184cm
Materials 4 x 6 8 x 6 10 x 6 12 x 6
Roof Material 11mm Tongue and Groove 11mm Tongue and Groove 11mm Tongue and Groove 11mm Tongue and Groove
Floor Material 11mm Tongue and Groove 11mm Tongue and Groove 11mm Tongue and Groove 11mm Tongue and Groove
Roof Covering Material Green Mineral Felt Green Mineral Felt Green Mineral Felt Green Mineral Felt
Features 4 x 6 8 x 6 10 x 6 12 x 6
Cladding Style Tongue and Groove Tongue and Groove Tongue and Groove Tongue and Groove
Windows N/A - Windowless N/A - Windowless N/A - Windowless N/A - Windowless
Factory Basecoat Treatment Red Cedar Water Based Treatment for Transit Red Cedar Water Based Treatment for Transit Red Cedar Water Based Treatment for Transit Red Cedar Water Based Treatment for Transit
Material Wood Wood Wood Wood
Locking System Turn Button Turn Button Turn Button Turn Button
Pre-Assembled Side Panels Yes Yes Yes Yes
Roof Style Pent Pent Pent Pent
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.

Videos & Guides

Our resource library offers step by step instructions, explanation videos and customer content to help you to plan, buy and build your garden building.


We do not offer an installation service on any of our buildings, as they are designed to be easy and simple to assemble. Using the digital assembly instructions included in your order confirmation and a team of at least 2 people, the handy pre-assembled panels mean you will have your BillyOh building up in no time!

See just how easy our buildings are to assemble in this video:

Master Customer Testimonials

We love to catch up with our customers to see how they’re getting on with their garden buildings. Check out how some of our customers have decorated their garden building and read what they had to say about it.


"We chose Garden Buildings Direct as the 8×6 shed we bought was reasonably priced. Our needs as we required a building being in our carport to store all our garden furniture, cushions, and patio umbrella, etc. along with all home decorating materials."

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Delivery was excellent, on time as promised and the building of it was accomplished by my son and son-in-law in about 4 hours or so. There's plenty more room to spare and I am sure I will find further items to put in there. It's not been painted as we are leaving it in its natural state for the time being.

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"I needed to buy a new shed as my old one was on its last legs. I found the BillyOh Master Tongue and Groove Pent Shed online at a reasonable price so I purchased it."

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The delivery was very prompt and within 20 minutes of the estimated time, I was contacted to say they might be a little late due to traffic delays - plain sailing all the way. Everything was there and I put the shed together by the instructions supplied.
Once complete, I treated the parts with Ronseal fence life stain red cedar. I would definitely recommend this shed to anyone looking to buy a solid shed from this company. Time is non-refundable, use it with intention.

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