Detailed Specification

The Table below shows the specification for the Mercia Retreat Log Cabin. All imperial measurements are approximate and the log cabins are built to metric measurements. The width and length measurements are the base sizes and are taken to the extreme external length of the log including the corner joints that protrude. The base measurements do not include any roof overhangs.These log cabins are supplied untreated.

Product Name: 4m x 3m (13' x 10) Mercia Retreat Log Cabin (28mm to 44mm Logs)
Footprint External Depth: 2800mm (9'2")
Footprint External Width: 3810mm (12'6")
Footprint Internal Depth:

28mm Logs - 2750mm (9')
34mm Logs - 2740mm (8'11")
44mm Logs - 2710mm (8'11")

Footprint Internal Width:

28mm Logs - 3750mm (12'4")
34mm Logs - 3740mm (12'3")
44mm Logs - 3710mm (12'2")

Front Roof Overhang: 1500mm
Side Roof Overhang: 330mm
Height to Eaves: 2.339m (7'8")
Height to Ridge:: 2.923m (9'7")
Floor Included: Yes
Floor Thickness: 16mm Tongue and Groove
Floor Bearers: 44mm x 44mm Pressure Treated
Roof Thickness:: 16mm Tongue and Groove
Roof Joists: 40mm x 90mm
Window and Door Joinery:  
Door: Double Door - Double Glazed Toughened Safety Glass
Door Height:   1.89m (6'3")
Door Width:   1.49m (4'11")
Number of Windows:   1x Opening Window
Window Glazing:   Double Glazed Toughened Safety Glass
Window Height:   1.2m (3'11")
Window Width:   0.68m (2'3")
Door and Window Reversible:   N/A
Positioning of Window Hinges:   Hinged at the Top
Roofing Felt:   Yes (Green Mineral Felt)
Roof Felt Weight per sq.m (approx):  
Roofing Felt Tiles (Black, Green or Red):   N/A
Upgrade to Toughened Glass:   N/A
Upgrade to Double Glazing:   N/A  (supplied as standard)
Additional Side Window:   N/A
Window Boxes: N/A
Terrace: N/A
Verandah:: N/A
Assembly: Optional
Other Sizes Available:  
Bespoke and Made to Measure Service Available: N/A
Manufacturer's Guarantee:
10-year anti-rot
FSC Certified: Yes
Free Delivery: Yes*
EAN Number:: 28mm Logs - 5029442002606
34mm Logs - 5029442002613
44mm Logs - 5029442002620
Country of Origin: United Kingdom
Manufacturer:: Mercia Garden Products Limited



The 13 x 10 Retreat Log Cabin from Mercia is the ideal purchase for anyone looking to expand the amount of usable space they have at home. Whether you need it for work or want to use it in your leisure time, the Retreat will provide an excellent new room for you to use that can be taken advantage of whatever the weather. This is all in an attractive, contemporary package that feels extra-bright and spacious on the inside thanks to its large opening window and ¾ glazed double doors.  

At elbec, we are confident that our log cabins are the perfect way to make the most of your unused garden space and provide a wonderful spot to relax or work in comfort all year round.

Ways to Make the Most of Your Retreat Log Cabin

There are plenty of ways to make the most of a Mercia Retreat Log Cabin. In simplest terms, it will give you an excellent new space that you can take advantage of for anything you can’t find the room for in your home. Its opening window and wide opening double doors give you the advantage of being able to easily control the temperature inside your cabin. You can throw them open in the summer to spill out into your garden or allow a cool breeze inside your cabin. Alternatively, shutting yourself inside in the colder months, you can seal yourself cosily away from the elements, which will really enable you to get the best out of your log cabin all year round. Providing a quiet spot away from any possible distractions in your home, the Retreat could give you an ideal space to set up as a home office. Many find the outdoor atmosphere great for concentration, making a log cabin a perfect working environment. Alternatively, the Retreat provides just the solution for anyone who is starting to outgrow their home, especially when moving to somewhere larger might be unaffordable or impractical. By turning unused garden space into a valuable new room, you will soon wonder how you managed without the extra space. Whether you are looking for a spacious and airy home gym, want to design and set up a bar for your garden, or even if you’re after a stylish music studio and practice room, then the Retreat could be exactly what you need.

Why the Retreat Might Be For You

The Retreat boasts a simple yet stylish contemporary design that has seen many customers choose it for their garden. But it is the beautiful, overhanging roof that really catches the eye, and this is what really brings the Retreat to life when compared to other log cabins. With wide opening doors allowing easy access, as well as plenty of room to fit in larger items of furniture, their ¾ length glazing allows plenty of light in, as well as great views of your garden when looking out. An opening window is located to the side of the door which further adds to the bright, airy feel of the interior. The tongue and groove roof, floor and walls provide the stunning timber finish to the interior that means you will notice the quality of the cabin as soon as you step inside. Many manufacturers recommend that you use Protek paint, available from elbec in a wide variety of colours. By using Protek Royal Exterior, you can make the Retreat Log Cabin look exactly how you want it while adding important extra protection to the timber. Whether you favour a more traditional log cabin look, for which their range of ‘natural’ colours would be appropriate, or a more colourful, modern look, Protek have a colour to suit any taste.


The Retreat Log Cabin boasts a number of features that show its quality. Supplied as standard with heavy duty roofing felt, this creates a weatherproof barrier and helps to prevent wood rot and weather damage. The 28mm Tongue and Groove cladding ensures that the Retreat is snug on the inside and sealed away from the elements. Many customers choose to upgrade the wall thickness for extra, all-year-round cosiness – 34mm or 44mm thick wall logs are available if this is an option that interests you. You can also upgrade to double-glazed windows to make it extra-snug inside. The interior is further sealed from the elements by the log cabin’s overlapping corners, with its four way corner joints also adding stability and durability to the Retreat. Fitted with 4mm toughened glass windows, this ensures a safer, more secure window pane. The double doors are secure and lockable, with a key supplied. This provides valuable extra peace of mind, particularly when leaving items in your cabin overnight. The door and window position is reversible, meaning they can be located on whichever side best suits your outdoor space. Sturdy floor bearers provide extra support for your log cabin as well as helping to protect against damp and rot.16mm tongue and groove roof and flooring completes this quality log cabin package, providing you with a sturdy, durable roof and a robust floor that can support heavy loads. We’re pleased to offer the option of booking our dedicated professionals who will assemble your log cabin quickly and correctly. However, you can choose to use the comprehensive instructions included with the log cabin and construct it yourself.

About Mercia Garden Products

Mercia are one of the UK's leading manufacturers of garden buildings, processing approximately 300,000 orders every year. The majority of these orders are delivered directly to customers by Mercia's own delivery service. With so many satisfied customers every year, you can rest assured that a Mercia Garden Product will provide your garden with high quality at a very reasonable price.

About the Timber

You will be impressed by Mercia's use of natural products and their environmental credentials. A high quality timber log cabin starts with high quality timber, so it is important to know exactly what timber is being used for your log cabin. The timber used for Mercia garden buildings is pine (pinus) and is sourced under FSC guidance.

About Your Log Cabin Order

If you think that a Mercia Retreat Log Cabin would be perfect for you, take a look at our delivery information. If you would like any extra details, feel free to email us to discuss your order and our full range of product options, or better still, give us a call so we can find the perfect log cabin to suit your needs.

Alternatively, why not visit us at our Brookfields Garden Centre showsite near Nottingham? One of our helpful advisors will be on hand to show you around or to help guide you through your order in person. Though if there is a particular garden building you would like to see, we recommend contacting us in advance to find out if we have it, or one similar, on site.

All Mercia Log Cabins are supplied untreated. You must apply a wood treatment to the exterior. Many manufacturers recommend Protek wood treatment, available from elbec in many different colours. This will protect the timber from weathering, making it last longer. The timber treatment will need to be repeated periodically in line with the manufacturer's instructions.

Key Features

  • FREE Delivery to UK Mainland*.
  • All of our Mercia Log Cabins are manufactured from sustainably grown Pine.
  • High quality interlocking logs are available in 28mm, 34mm or 44mm for a strong and durable log cabin
  • The roof and floor are made from thick tongue and groove making them durable and provides an attractive interior to this log cabin.
  • 40mm x 55mm Pressure treated floor bearers ensure a high quality and long-lasting building.
  • Glass is used so you can rely on the clarity of your windows and doors for years to come.
  • Generous roof height.
  • 16mm tongue and groove roof and flooring
  • Delivered flat packed with comprehensive instructions, fittings and roofing felt to ensure installation is as straightforward as possible.
  • Forest Stewardship Council (FSC) Certified timber is used throughout to produce an environmentally friendly log cabin.
  • Optional felt roof tiles can add an impressive finish to the cabin
  • Optional double glazing can help keep youngsters safe and adds even more insulation and warmth.
  • Option to have your log cabin installed by our professional team of fitters.


ALL DELIVERIES ARE DELIVERED TO KERBSIDE OR DRIVEWAY. All of our Mercia products are delivered flat packed other than fence panels (which are delivered fully constructed), direct to your home, and are supplied with a set of instructions to support assembly.

Booking Delivery

You will be required to book your delivery date at the time of placing your order (except for Metal Shed). Our 'Request a Delivery Date' service is available to the majority of areas and you'll find that the majority of the UK postcodes are FREE but some areas may incur a delivery surcharge and some postcodes are not covered at all. Select a 'requested delivery date' by entering your postcode in the 'Request a delivery date' section above. You will also be notified at this time if your area incurs a surcharge or delivery is not covered in your area.

Prior to Delivery

On the morning of your delivery date, you'll be sent an update by text with an estimated 2-hour delivery slot (this update can only be provided where a mobile number has been supplied on the billing address section at the time of checkout) together with a link to the manufacturer delivery portal where you'll be able to track your order.

Please note: Mercia Metal Sheds ONLY - your order is delivered by a courier you will not be notified prior to the delivery. If you are not in on the day of the delivery you will be carded and asked to contact the courier to arrange a new mutual delivery date. The estimated delivery lead time for Mercia's Metal sheds is identified on the product for the metal shed. Lead times are on working days (Monday - Friday) excludes Bank Holidays. These estimated lead times are provided by the manufacturer. Some remote areas will take a little longer.

Upon Delivery

Your order is delivered either kerbside or driveway and will be delivered on either a 3.5T, 7.5T or 18T Lorry. Unfortunately due to health and safety and insurance liabilities the driver will not be able to take your goods around to the back of your property but may upon request place the product at the side of the house if there are no access or restriction issues. We would not risk damaging your property whilst delivering a product to an unsafe location. Unfortunately, we will not be able to go through your property.

We would recommend against arranging for a third party to install the building before it's been delivered and checked that all parts are present, as we cannot be held liable for any third-party costs.


Orders with Assembly 

The lead time for our installation option is around 12 weeks from the date of order. With the installation option, the majority of orders will have their delivery and installation on separate days; there will be a small number of orders which will have delivery and installation on the same day. You will be advised by the manufacturer's installation team which category your order falls into.

Depending on the installation option for your order, you will be contacted within the delivery timescale and given a date for either delivery/assembly on the same date or a separate date for delivery and assembly.

Retreat FAQs

Log Cabin Frequently Asked Questions:

What size log cabin do I need?
We would always recommend that your decision making is based on the biggest log cabin you can afford. It will of course need to fit in the space you have allocated without any restrictions. You will find that just like a house, you will always find use for the space. Of course size and space will come down to what you will potentially use the Log Cabin for ie Garden Office, Games Room, Hobby Room or for Dining.

What should I consider when choosing a location for my log cabin?
Unlike some Log Cabins with Mercia Log Cabins you actually build the cabin from the inside but you will need enough room to be able to assemble the roof and treat the external walls. We would therefore recommend that your log cabin should ideally have a clear space of at least 18" wide on all sides, if possible. We know that this can sometimes be an issue and therefore a reduced clearance is often possible on one or two sides. When considering your space around your log cabin (particularly where there are space constraints) remember to allow for any roof overhang. You should also clear the area of any nearby shrubs and trees and remember to allow for future growth. If possible a sheltered position is better.

What is the best way to prepare a base for my Log Cabin?
The most important guarantee of stability and long life of the Cabin is a good foundation. All log cabins require a well prepared, solid, flat, level concrete base to ensure a long lasting and stable installation. It should have a very slight fall to prevent water laying on it. We do not recommend slab and / or shingle bases as an uneven base or subsequent settling will cause excessive strain and may damage your building. Guidelines for preparing a base are issued subsequent to placing an order and are also available upon request.

What tools do I need to build my Log Cabin?
The following tools will be required: Ladder, Screwdriver, Rubber Mallet, Spirit Level, Tape Measure, Drill, Hammer and Saw.

Does the Log Cabin need to be treated?
Log Cabins are supplied untreated. We explain in the section below the reasons for this. However as it is untreated it will enable you to decorate and finish your log cabin to your own individual style and taste. Please Note: the bearers are pre-treated with pressure treatment therefore any wood that comes into contact with the ground is powerfully treated to prevent against decay and insect infestation. It is advised that you treat your log cabin when it has been constructed with a suitable external wood treatment (there are some parts which will need treating prior to assembly which are detailed in the instructions) and treat the external walls periodically after that in order to maintain and prolong the life and beauty of your log cabin. We would also recommend the maintenance of doors and window hinges that you regularly oil these to ensure a continued smooth operation.

Why don't you pre-treat Log Cabins?
Log cabin timber is kiln dried, a process that reduces moisture content. This drying ensures that all wood is reasonably sized and capable of locking together tightly and securely. If timber was to be pre-treated for customers, the rigidly sized pieces of wood would have to be coated with preservative at this stage of production. Each piece would absorb varying amounts of treatment and drying times would be inconsistent. This process would expand to different sizes and this movement would prevent the interlocking log walls from fitting together tightly and securely, if at all.

Do you offer an Installation Service?
Yes. We offer an installation service throughout the majority of the UK mainland. Installation by one of Mercia's experienced assembly teams. Please be aware that adding the assembly option could increase the lead time by up to 2 weeks.

How easy are Mercia Log Cabins to assemble?
You will not need to be a DIY professional to put up a Mercia log cabin. Comprehensive, accurate and extremely easy to follow assembly instructions are supplied.

4m x 3m (13' x 10) Mercia Retreat Log Cabin (28mm to 44mm Logs)

from £3,499.99

Product code - 20050007


Description Information

The 13 x 10 Mercia Retreat Log Cabin provides you with loads of new indoor space for your garden in a simple yet stylish package that is bright and spacious on the inside. Whether you need it for work or for your leisure time, the Retreat could be exactly what you need. The key features of this stunning log cabin include:

  • Simple yet stylish contemporary design, brought to life by a beautiful, overhanging roof
  • Cosy interior provided by 28mm thick wall logs, with upgrades to log thickness and window glazing available
  • Wide opening double doors are supplied with mortise lock and key for extra security
  • Sturdy and weatherproof construction protecting the inside from the elements and includes a 10 year anti-rot guarantee

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Usually delivered: Use Pick A Day delivery below for your earliest delivery date to your Post Code.

Note: Currently not available for delivery to Offshore Post Codes.

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