12 x 8 Mercia Ultimate Shed

Prices Around: £1599.95
Size: 12’ x 8’
Review By:

Strong, durable and secure, this large Shiplap tongue and groove cladding shed is brought to you by one of the leaders in the industry. Benefitting from single glazed windows, 16mm Shiplap Plus cladding, wide double doors and a 10 year anti-rot guarantee; it is a remarkable building with an aesthetically pleasing design. Able to withstand whatever the British weather throws at it, this is a building that is bound to last for many years to come.

What we rate

  • Single glazed windows
  • 10 year anti-rot guarantee
  • 16mm Shiplap Plus cladding
  • Wide double doors with attached Rim lock
  • Extra thick framing

What we slate

  • High cost
How We Rate It
8.5
Quality 10/10
100% Complete
Longevity Of Materials 8.1/10
81% Complete
Storage Size 8.2/10
82% Complete
Ease Of Installation 7.5/10
75% Complete
Value For Money 7.5/10
75% Complete

Let's Take a Closer Look...

Shed Type and Roof Size

12 x 8 Mercia Ultimate Shed Front Open DoorThis is a large sized wooden storage shed with the potential to be used as a workshop or even a secure bicycle shed. Providing excellent water-resistance thanks to its Apex roof, the building guarantees to keep your equipment dry and protected whatever the weather. Its height is a great benefit and one of its standout features. With its eaves measuring 1.70m tall and its apex roof measuring 2.31m tall, it offers a substantial amount of height for a more comfortable design. It also means you can easily store slightly taller tools or equipment.

Getting things in and out of the building is also ease thanks to the wide, strong double doors. They measure 1.30m in width and 1.77m in height. Despite being a really spacious building, it also comes with a reasonable and compact width of 2.57m and a depth of 3.67m.

Cladding, Frame and Floor

12 x 8 Mercia Ultimate Shed WindowsYou can tell a lot about the quality of this shed by looking at the cladding that has been used. Mercia have constructed the entire structure of this building with 16mm thick Shiplap tongue and groove cladding. Now if you’re not familiar with the different cladding types this won’t mean a lot to you. However, within the industry Shiplap is considered the highest quality type of cladding that can be used on outdoor buildings. It is only ever used on high-end buildings and offers a very tight, thick weather-resistant design.

You should also know that not all Shiplap cladding boasts the same quality. This is because different manufacturers use a different thickness. The thicker it is, the better quality it will be. What we’ve found is that a lot of Shiplap clad buildings come with a 12mm thickness. So from the 16mm Shiplap cladding used on this shed, you get an idea of the type of quality you can expect in comparison to other sheds.

It isn’t just the Shiplap design that creates a durable, water-resistant structure however. Mercia have also made use of tongue and groove style cladding for extra protection. The way tongue and groove cladding works ensures that the building doesn’t become damaged from temperature or moisture changes throughout the seasons. It leaves a small expansion gap that helps support any changes that occur within the timber; ensuring it doesn’t cause overall damage to the shed.

This very tough exterior is supported by an extra thick frame which measures 44mm x 44mm. Again, compared to most sheds this is a much thicker design which means it boasts one of the strongest and most durable frames available in the industry.

To complete the buildings ultra-strength assembly, the floor and roof also feature 16mm Shiplap tongue and groove cladding. This is one of our favourite features as it means you don’t have to spend any extra money trying to improve the floors stability. With a lot of wooden sheds you’ll find that in order to keep the costs down, manufacturers use solid sheet materials rather than actual cladding. Unfortunately this often means that you have to spend money strengthening the floor so that it can support heavy tools and equipment.

Treatment Requirements and Warranty

12 x 8 Mercia Ultimate Shed SideAll wooden sheds require some form of treatment, though the fact this one has been made with tongue and groove Shiplap cladding means you have two options available. The first is a water treatment. It’s worth noting that Mercia have given this building a water based treatment prior to shipping. However, it only provides protection against damage that could be caused during transit. The company states you need to use a spirit based treatment after you’ve installed the shed to make sure it is properly and fully protected. This is actually a necessity if you want to benefit from the included 10 year anti-rot warranty.

Spirit treatments are a much better choice anyway as depending upon the brand you choose, they don’t require annual application. So while they may be more expensive to purchase than water based treatments, you do save money in the long run, as well as the time you have to spend on maintenance, due to the less frequent application requirements.

Doors and Windows

The Ultimate Shed range comes with two windows that you can open to aid with ventilation. They are 6mm single glazed which provides plenty of noise reduction, security and they keep the heat inside during winter. They also help to ensure there is a lot of natural lighting in the shed all year round.

As for the doors, they are a focal point on the building thanks to the antique hinges and different coloured finish. They come with a Rim lock installed and have a heavy design. You’ll find they open out pretty wide to also ensure you have a large amount of access into the shed. With a ledge design, you are free to install a hasp and staple and the cross beams give the doors a much sturdier frame, ensuring they won’t sag over time.

Security and Privacy

This shed is great in terms of security. Solid, thick cladding helps to prevent thieves breaking in through the sides of the building, while a Rim lock protects the front. It also helps to stop children from accessing the shed which adds to its safety if you’re storing potentially dangerous machinery.

Privacy wise, the windows could cause a problem if you’re storing anything expensive in the shed. If using the space as a workshop, they offer natural lighting which is a benefit. However, if privacy is high up on your list you would be better off opting for a windowless shed.

Customisation Options and Extras

You do have one customisation choice available with the Ultimate Shed and that’s the decision on which side of the building to install the windows. This may seem like a simple choice, but it enables you to have more flexibility in terms of where you assemble the shed. You can also choose to install the windows on a more secure side of the garden which can help to minimise privacy issues.

You’ll also find a selection of extras available, with two of our favourites being the electrical pack and 49mm weatherproof padlock with hasp and staple. The electrical pack is expensive, but it is also a requirement if planning on using the building for workshop space. It comes with everything you need to get the shed connected to the mains. However, if you are making use of the installation service, it’s important to note that this won’t include installation of the electrical pack.

The padlock is designed to withstand all weathers and as it comes with a hasp and staple it is a fantastic investment. Thanks to the Rim lock, the shed doesn’t really need an additional locking system. However, it can give you a much better peace of mind and is a good choice if your garden is open to the public.

The range of Cuprinol treatments are also worth investing in. They help to ensure your shed is protected with the 10 year anti-rot warranty and there are a few different colours to choose from if you fancy changing the appearance of the building slightly. There are a few other extras available but the ones above are the most notable and worthy of investment.

So, How Does It All Stack Up?
Quality 10/10
100% Complete
Mercia have managed to create an exceptional quality shed. The cladding in particular is what helps us to give this such a high rating.
Longevity Of Materials 8.1/10
81% Complete
8.1/10: Another high rating, the longevity of materials is exceptional. The only niggle we have is that you need to keep treating the shed in order to ensure the materials do last as long as the manufacturer claims.
Storage Size 8.2/10
82% Complete
The storage potential is really good thanks to the solid frame and construction. As well as the spacious floor space available, you could also attach shelves and hooks to hang things off the walls.
Ease Of Installation 7.5/10
75% Complete
The installation instructions are easy enough to follow, but you shouldn’t underestimate the amount of effort that goes into it. As the cladding is thicker than it is on a lot of other sheds, the panels are heavier and slightly more difficult to install. There’s also the time it takes to build to factor in too. Don’t expect to get this completed in half a day.
Value For Money 7.5/10
75% Complete
If the initial cost of the shed wasn’t so high we could have given this a higher rating. Saying that however, thanks to the number of extremely impressive features, we do think this building offers very good value for money.
8.5
Overall Score
Final Thoughts: The Ultimate Shed by Mercia is one of our favourites due to both its aesthetic design and its durability. Some of the highlights of the building for us are the 16mm Shiplap tongue and groove cladding, the antique style hinges and the exceptionally strong floor. It’s difficult to find anything to criticise with this shed apart from its high cost. Even that to us isn’t much of a con due to the value for money you receive overall.

Prices around: £1599.95
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