Mercia Helios 3m x 3m Curved Roof Log Cabin (44mm) - Double Glazed

Product Code: SHS26683
  • 10-year anti-rot guarantee (+ 1-year parts guarantee)
  • Made in the UK from FSC® timber
  • 44mm interlocking logs
  • 16mm tongue & groove floor and roof (with weatherproof felt cover)
  • Glazed double doors with key-operated lock
  • 2 opening windows
  • 14mm double glazing throughout
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Mercia Helios 3m x 3m Curved Roof Log Cabin (44mm) - Double Glazed Technical Drawing
Brand Mercia
Cladding Interlocking logs
Cladding Thickness 44
Construction Type Interlocking Logs
Door Type Double Doors
Eaves Height 2125
Size 10' x 10'
Ridge Height 2567
Roof Style Curved
Treatment Supplied Untreated
Show Upsell Popup No
Guarantee 10 years
Depth at Base 2814
Depth including Overhang 3487
Width at Base 2814
Width including Overhang 3060
Door Height 1980
Door Width 1488
Glazing Material Glass
Locking System Lock & Key
Number of Windows 2 windows
Floor Material Matchboard
Floor Thickness 16
Packaged Weight 674kgs
Roof Material Matchboard


Insulated for use the whole year round, the Mercia Helios 3m x 3m Curved Roof Log Cabin (44mm) - Double Glazed is a multi-functional garden building, with a stylish, modern design.

A UK-Made Log Cabin

This log cabin is constructed in the UK from 44mm interlocking logs, so is incredibly strong and exceptionally well insulated. The floor and roof are both built from 16mm tongue and groove, renowned for its strength, style and weathertight qualities. The latter comes with an eye-catching curved design, and is fitted with a mineral felt cover for complete weatherproof protection.

The timber used to build this garden cabin is FSC® certified, which is exclusively sourced from sustainable, well-managed forests.

Doors and Windows

Easy access is gained via glazed double doors, which are fitted with adjustable hinges, a chrome handle, and key-operated lock to keep valuable items safe. The 2 large windows are openers, allowing the log cabin to be ventilated, as and when desired. Both the doors and windows feature 14mm double glazing, for enhanced insulation and soundproofing.

Assembly, Treatment and Guarantee

This log cabin must be installed on a solid, level base. Delivered untreated, the wood should be coated in a high-quality preservative and waterproofing treatment upon assembly, and annually thereafter, to protect it from rot, maintain its attractive appearance, and validate the excellent 10-year anti-rot guarantee. A 1-year parts guarantee is also supplied.

Choice of Sizes and Optional Upgrades

The Helios log cabin is available in 2 sizes. A log cabin bar can be purchased as an optional upgrade, to transform this log cabin into the ultimate outdoor entertainment venue.


Delivery is free to most UK addresses.

Measuring 1800mm x 1200mm, a log cabin bar is the ideal addition to a Mercia log cabin. Made in the UK, from FSC®-certified 19mm tongue & groove, it comes with an L-shaped design, spacious bar top and 10-year anti-rot guarantee.

  • 10-year anti-rot guarantee (+ 1-year parts guarantee)
  • Made in the UK from FSC® timber
  • 44mm interlocking logs
  • 16mm tongue and groove floor
  • 16mm tongue and groove roof with weatherproof felt cover
  • Glazed double doors with key-operated lock
  • 2 opening windows
  • 14mm double glazing throughout
  • Delivered untreated – wood preservative and waterproofing treatment required
  • Available in 2 sizes
  • Buy a log cabin bar as an optional upgrade
  • Free delivery to most UK addresses

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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.

£69.99 - CF, DD, DG, DT, EH, EX, FK, G, KA, KY, LD, ML, PA1-19, PH1-20, PL, TA, TD, TQ

£249.99 - AB, BT, LL, PA20-38, PH21-50, SA, SY, TR

£369.99 - GY, IV1-40, KW, JE

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.

Please Note - delivery is NOT available to the following locations: Isle of Man, Isle of Wight, Isles of Scilly, Scottish Islands

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