Mercia Elite 5m x 4m Double Glazed Garden Office Log Cabin with Side Shed (34mm)

Product Code: BSD26994
Garden Office with Side Shed Only: £4,639.00
  • Superb 10-year anti-rot guarantee (plus 1-year parts guarantee)
  • Built in Great Britain from sustainably-sourced wood
  • Robust 34mm interlocking log walls
  • 16mm tongue and groove floor PLUS roof
  • Lockable, partially-glazed double doors and 2 opening windows
  • Double glazing used throughout
  • Side shed fitted with its own door

Please allow 6 - 8 weeks for delivery if adding installation. Unless you have purchased one of our wooden base kits, please ensure a solid, level base is constructed before your installation date. Please note that we do not install plastic bases or other accessories. We will contact you to arrange an installation date after checkout.

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Kickstart your career with the Mercia Elite 5m x 4m Double Glazed Log Cabin (34mm) – the perfect garden office for homeworkers who take their job seriously. As an added bonus, this beautifully designed garden building also comes with a side shed, to help you keep your patio tidy.

An Elite Garden Office

Made in Great Britain and supplied with a superb 10-year anti-rot guarantee, this log cabin/ garden office is constructed from sustainably-sourced 34mm interlocking logs, making for a particularly robust and durable structure.

Both the floor and roof are far thicker than those found on many log cabins. They are built from the finest 16mm tongue and groove, renowned for its strength, style and weathertight qualities. The roof features an eye-catching reverse apex design and is fitted with a premium felt cover to provide you with complete weatherproof protection.

This really is an Elite garden office in every possible sense of the word.

The Garden Office’s Interior

Partially-glazed double doors offer comfortable access to the interior. They feature a key-operated 3-point locking system to keep your valuable items safe from unwanted attention.

Boasting 2 opening windows, this log cabin is very easy to ventilate and enjoys an abundance of natural light, making it an uplifting home office in which to spend time. Double glazing is used on both the doors and windows for superior insulation and to withstand the rigours of a busy, family-orientated garden.

This garden building is also fitted with an air vent to prevent the build-up of moisture, when the windows are closed. Not only does this create a much nicer working environment, it will prolong the life of your garden office furniture and other stored items too.

The Garden Building’s Side Shed

The side shed contains plenty of room to house a bicycle, tools and other garden equipment. For your convenience, when accessing or depositing stored items, it is fitted with its own door.

(Please be advised that the side shed’s walls are 19mm thick, while the floor and roof are 12mm.)

Wood Treatment and Guarantees

This garden cabin is supplied untreated. You should coat the wood with a high-quality preservative upon assembly, and then follow the manufacturer’s guidance on further treatment to validate the 10-year anti-rot guarantee. A 1-year parts guarantee is also included for added peace of mind.

The Mercia Elite Garden Office Log Cabin Range

You can purchase a Mercia Elite log cabin/ garden office in a range of designs and sizes. Their cladding thickness varies between 28mm and 44mm.

Free Delivery

Free delivery is available to most UK postcodes.

  • Superb 10-year anti-rot guarantee (plus 1-year parts guarantee)
  • Built in Great Britain from sustainably-sourced wood
  • Robust 34mm interlocking log walls and 16mm tongue and groove floor
  • 16mm tongue and groove roof with premium felt cover
  • Partially-glazed double doors with key-operated 3-point locking system
  • 2 opening windows
  • Double glazing used throughout
  • Includes air vent
  • Side shed fitted with its own door
  • Supplied untreated – must be treated with wood preservative
  • Choose from a range of designs, sizes and cladding thickness
  • Free delivery to most UK postcodes


Mercia Elite 5m x 4m Double Glazed Garden Office Log Cabin with Side Shed (34mm) Technical Drawing
Brand Mercia
Cladding Interlocking logs
Cladding Thickness 34mm (Side Shed - 19mm)
Construction Type Interlocking Logs
Door Type Double Doors with Single Door
Eaves Height 2211
Size 17' x 13'
Opening Windows 2 windows
Ridge Height 2725
Roof Covering Premium Roofing Felt
Roof Style Reverse Apex
Treatment Supplied Untreated
Guarantee 10 years
Depth at Base 3808
Depth including Overhang 4140
Width at Base 4936
Width including Overhang 5164
Door Height 1885
Door Width 1488
Glazing Material Double Glazed Glass
Locking System Lock & Key
Number of Windows 2 windows
Floor Material Matchboard Tongue & Groove
Floor Thickness 16mm (Side Shed - 12mm)
Packaged Weight 850kgs
Roof Material Wood
Roof Thickness 16mm (Side Shed - 12mm)

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Log Cabin Installation

Mercia Garden Building InstallationMercia Garden Building Installation


Mercia Log Cabin & Garden Office Installation


Mercia has a team of trained installers who can carry out your log cabin installation for a professional, hassle-free assembly. Their dedicated training to installing Mercia Log Cabins ensures an expert finish.


Please be aware that the delivery and installation will not occur on the same day but will be scheduled very close together where possible.


The fitters will require at least 60cm/24” on each side of the base to carry out the installation. The base should be level and on firm ground. Mercia recommend that the base be very slightly smaller than the external measurement of the building to create a run off for water and that the door be at least 25mm above ground level to prevent flooding.


Mercia do not provide a service for the preparation of the base area or for installation of electrics, wi-fi, solar lighting or plastic bases. If you require assistance with these, we recommend the use of for locating a reputable tradesperson in your area. Solar lighting packs are designed to be easy DIY assembly.


Please inform customer service BEFORE you order, if you believe there are restrictions which could impact the delivery and installation of the garden room.


Mercia DeliveryMercia Delivery
Delivery VanDelivery Van


We offer FREE delivery to the majority of mainland UK postcodes but some areas may incur an additional carriage charge (see below) and some postcode areas are not covered at all. Please use our postcode checker above to check delivery is available to your area.

£64.99 - CF, DD, DG, DT, EH, EX, FK, G, KA1-26,29-30, KY, LD, LL, ML, PL, SA, SY, TA, TD, TQ

£94.99 - AB, PA1-19,21-40, PH1-41,49-50, TR1-20

£124.99 - IV1-40,63, KW1-14

Please note - delivery is NOT available to Northern Ireland (BT1-99), the Channel Islands (GY1-9 and JE1-5), Isle of Man (IM1-9), Isle of Wight (PO30-41,49), Isles of Scilly (TR21-25) and Scottish Islands (HS1-9, IV41-56, KA27-28, PA20,41-80, PH42-44, KW15-17, ZE1-3).

UK MapUK Map

Delivery to every area of the UK cannot be made every day. Some postcodes fall into an extended delivery lead time area. The extended delivery lead time will be in addition to the typical lead time stated. If your postcode falls into one of the extended lead time areas then the delivery team will be contacting you to arrange an appropriate delivery date.

If you will be unavailable on the day of delivery the driver can attempt to leave your order in a safe place, please indicate this when selecting your delivery as re-delivery charges may be levied if delivery fails on the agreed date. If you haven't already selected your delivery day, our delivery team will contact you to arrange an acceptable delivery date based on the typical lead time stated for the product.

Please allow 6 - 8 weeks for delivery if adding installation.

Upon Delivery:

Delivery VanDelivery Van

Delivery of this item is typically made by a 7.5 ton flat-bed (similar size to a council refuse lorry) up to an 18 ton lorry (similar size to a removals lorry). Delivery is typically between 7am and 7pm. Unfortunately, we are unable to specify a timed delivery.

This product is delivered in a flat packed, sectional format direct from the manufacturer to your home with full instructions ready for DIY assembly.

The delivery drivers are only insured to deliver to kerb side or driveway. 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. Please note that some buildings will not pass through standard doorways in houses. Please call to seek advice if there are any access concerns.

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