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Mercia 3.5 x3m 19mm Log Cabin

First Added - February 27 2022
Last Updated - August 4 2022 - 14 Data Points Updated - 3 Data Points Added
Reviewed & curated by a panel of garden building experts. Using methodology 1.1

Product ID: SKU: 593737

Size: 11' x 9'

Merchants Checked: 12

Available From: 1

HomeBase
£3,250.00
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78
Good Ranked in the Top 88% of Log Cabins.
Position 797 of 910 Log Cabins - Up places from previous update.
Quality of materials
Construction quality
Ease of construction
Value for money

See how our panel of industry experts helped create the impartial judging criteria used to calculate the Expert Score.

Our verdict on the Mercia 3.5 x3m 19mm Log Cabin

The Mercia 3.5 x3m 19mm Log Cabin comes with a reverse apex style roof, holds a 10 Years guarantee, and is fit with doors that are lockable through the lock and key locking system. The 3 windows used on this particular 11′ x 9′ use a styrene [1] glazing material (Thickness was not specified).

Base material: wood

Certifications this product meets:

FSC certified timber[2]

Our experts say this has 3 stand out features. A stand out feature is something found on over 70% of the top 10% of products in a particular category or is an exceptionally good feature as rated by our panel of experts.

1. The tongue & groove floor material is a great choice and is what we find being used by 94% of the top 10% of log cabins.

2. A 19mm thick cladding like the one used on walls of this log cabin is one of the best rated by our experts.

3. The mineral felt roof covering found on this log cabin is rated to be one of the best by our experts.

Below is a brief overview of how some of the key points of this log cabin fairs across the market.

Cladding

The interlocking boards cladding(walls) used here is an about average form of construction for log cabin walls out of the 2 types [3] we’ve identified on same-size log cabins, that you’ll also see getting used on 3% (29 of 893) of all log cabins analysed [4], and sadly not present at all on any of the 89 log cabins that make up the top 10% of log cabins [5]. You’ll also find the interlocking boards cladding showing up on 3% of 11′ x 9′ log cabins (3 in total) [6].

The walls are 19mm thick and we rate this one of the best thicknesses out of the 5 found on same-size log cabins [7]. It is used on 18% of all log cabins [8] and is also used across 3% of the top 10% of log cabins [9] we analysed. While you’ll find that the Expert Score of this log cabin is 8 points lower than the average for 11′ x 9’s that use 19mm thick cladding (77 vs the average of 85) [10], you can be sure it’s not due to the cladding thickness as this one of the highest scoring thicknesses available on 11′ x 9′ log cabins. 25% of 11′ x 9′ log cabins (26 in total) use 19mm thick walls.

Read full analysis for cladding.

Roofing

Mineral felt is used as the roof covering, and out of 2 types identified on same-size log cabins [11], is said to be one of the best roof covering materials. It comes fitted on 57% of log cabins and used on 58% of the top 10% of 11′ x 9′ log cabins. Even though the Expert Score of this particular log cabin is below the average 11′ x 9’s cover their roofs with mineral felt (77 vs the average of 86), with it being on 58% of the top 10%, this should give you confidence in its quality. 68% of 11′ x 9′ log cabins (71 in total) make use of a mineral felt material as a roof covering.

Read full analysis for roofing.

Flooring

The manufactures of this log cabin chose tongue & groove for the floor construction, we rate this the best form of floor construction and is the only type found on this size of log cabin [12]. This type of floor construction is used on 74% of all log cabins we analysed, and 94% of the top 10% of those log cabins. Even though the Expert Score of this particular log cabin is 10 points below the average of 87 for 11′ x 9’s using a tongue & groove flooring, with it being on 94% of the top 10%, you can be assured that this is a quality flooring material. 61% of 11′ x 9′ log cabins (63 in total) use tongue & groove construction for the floor.

A 12mm thick floor boarding is used here, this is one of the best floor board thicknesses according to our experts out of 7 found on same-size log cabins [13]. It’s found on 10% of all log cabins and used on 3% of the top 10% of log cabins. Even though the Expert Score of this log cabin is 6 points lower than that of the average for 11′ x 9’s floored with a 12mm material (77 vs the average of 83), you can be sure it’s not due to the flooring because this one of the highest scoring flooring thicknesses available on 11′ x 9′ log cabins. 12% of 11′ x 9′ log cabins (12 in total) use 12mm thick floor boarding.

Read full analysis for flooring.

Window

Styrene windows come installed on this log cabin. As a glazing option, we rate it the worst out of the 3 glazing types found on 11′ x 9′ log cabins [14]. This particular type of glazing is used on 3% of all windowed log cabins with a look at the top 10% of log cabins showing us that none of them choose to install windows with this kind of glazing. 5% of 11′ x 9′ log cabins with windows (4 in total) use styrene windows.

Read full analysis for window.

You Might Also Consider

We found 104 11′ x 9′ log cabins with comparable specifications. The Mercia 3.5 x3m 19mm Log Cabin has an Expert Score that is 12% lower than average and is £4 less expensive than average. If you are looking for the best value or highest expert scoring log cabins out of the 104 with comparable specifications the following might be of interest.

Best value – If you are looking for something comparable that costs less, then you could save £2,394 with this Optional extra – Add Assembly Service – Avesbury 19 mm Log Cabin 10′ x 10′ – Assembly. It is priced at £856, this is 279% less than this and has an Expert Score of 77, 0 points equal than the Mercia 3.5 x3m 19mm Log Cabin.

Highest Expert Score – With an Expert Score of 97 vs 77 for this product, the 10’x10′ Blake | 44mm Log Cabin is the best 11′ x 9′ log cabin with comparable specifications, and is priced at £3,238, that’s £12 less than the Mercia 3.5 x3m 19mm Log Cabin.

High Wind Area – If you live in a particularly exposed or high wind area then having a log cabin with a thicker cladding and higher than average frame thickness can be preferable. We found at least 3 log cabins that have a combination of features that can make them more suited to higher wind areas.
12’x8′ Blake | 44mm Log Cabin
10’x10′ Blake | 44mm Log Cabin
Redlands 3.6m x 3m Erin Log Cabin

Coastal Consideration – If you live in a particularly wet or harsher environment such as by the coast then you might want to consider something with a more robust pressure treatment or something made from metal or plastic, both materials that are particularly suited to such harsh environments. We’ve found at least 3 log cabins that have a combination of features that can make them more suited to higher wind areas.
Shire Maulden 2.7m x 3.5m Log Cabin Summerhouse
Shire Montford 3.2m x 3.2m Log Cabin Summerhouse
Belgravia 28 mm Log Cabin 10′ x 10′

Public-Facing – Extra security measures might be more of a concern if you’re placing your building in an area that is more public-facing than a garden. Features such as security windows or even having no windows at all, and the ability to lock all opening doors are usually much more important when you have something that is more public-facing. We found at least 3 log cabins that have options that you might find a better fit if this is a concern you have.
10’x10′ Blake | 44mm Log Cabin
12’x8′ Blake | 44mm Log Cabin
12’x8′ Capetus | 44mm Log Cabin

More Child Friendly – If you have children and you are looking for something that has that little extra in terms of durability then tougher glazing options might be a better option. Here we have at least 3 other options that will fill those needs.
12’x8′ Aura | 44mm Log Cabin
Shire Barnsdale 10 x 10ft Double Door Log Cabin with Assembly
Shire Gisburn 12 x 8ft Double Door Log Cabin

Product Details

Building Type
Garden Gym Rooms, Garden Rooms, Log Cabins, Modern Garden Rooms, Modern Log Cabins
Metric Size (Meters)
11' x 9'
Material
Wooden
Roof Style
Reverse Apex
Number of Windows
3
Cladding Type
Interlocking Boards
Cladding Thickness
19mm
Treatment Type
Treated
Guarantee
10 Years
External Dimensions
2595 x 3528 x 3163mm
Internal Dimensions
3264 x 2760mm
Industry Standards Certification
FSC Certified
Additional Information
Product is natural wood and requires treatment to protect against weather damage and rot.
Additional Assembly Information
Installation recommended on flat/level area
Product Dimensions
11'4ft x 9'8ft
Assembly Options
Installation Service Included
Locking System
Lock and Key
Number Of Doors
1
Floor Material
Tongue & Groove
Glazing Material
Styrene
Roof Covering
Mineral Felt
Floor Thickness (Imperial)
12mm
Floor Thickness (Metric)
12mm
Window Size (Metric)
nan x nan

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Expert Score 8380758380
Price £2,329.00£8,199.00£10,639.00£1,074.00£3,095.99
Size 12' x 8'10' x 10'9' x 9'7' x 5'20'x8'
Brand ShireForest XtendHartwoodLoxleyTiger Sheds
Material WoodenWoodenWoodenWoodenWooden
Cladding Thickness 12mm12mm12mm
Guarantee 10 Years15 Years15 Years10 Years
GoGoGoGoGo
Joel Bird

Joel Bird

Profile

Our resident shed building expert Joel was the 2014 winner of Channel 4’s Amazing Spaces Shed of the Year having beat over 10,000 applicants to win. He returned to the show the following year as a judge. He is also the author of The Book of Shed and has designed & built over 50 small bespoke garden builds. Joel has appeared on various TV or Radio shows include George Clarkes Amazing Spaces, Alan Titchmarsh Love your Garden, Chris Evans Breakfast Show and BBC Radio 4’s Saturday Live.

Meet the experts

Sources

Merchants Checked

12 different sources were used to research information on this product, and 1 contained information that we were able to use to compile the data used on this page.

The following merchants were checked on the 06 August, 2022 to see if they stocked this product.

Homebase – 35509 products checked, found 1 match.
Waltons – 231 products checked, found no matches.
Wickes – 19576 products checked, found no matches.
B&Q – 78905 products checked, found no matches.
ManoMano UK – 922302 products checked, found no matches.
Wilko.com – 21232 products checked, found no matches.
Buy Sheds Direct – 1635 products checked, found no matches.
sheds.co.uk – 1999 products checked, found no matches.
BillyOh – 1244 products checked, found no matches.
Garden Buildings Direct – 1284 products checked, found no matches.
Shedstore – 1373 products checked, found no matches.
Tiger Sheds – 635 products checked, found no matches.


1. Styrene (Polystyrene (High Impact) HIPS): Styrene as it is commonly known or High Impact Polystyrene (HIPS) is a very versatile form of plastic. It has a very wide range of uses but for garden buildings styrene is typically used as a budget option for windows.

Styrene is a shatter-resistant material, which is why it is ideal for situations where safety needs to be considered, such as playhouses. This benefit can be offset by a few other drawbacks, unfortunately styrene has a tendency to yellow over time (the technical term is Photoyellowing and it is caused by prolonged exposure to UV Light), the degradation of its polymers over time also causes it to become more brittle.

Another drawback of styrene is its thermal coefficient of expansion (it is 80 x 10-6), this is higher than most other glazing options. This means that as the material heats up and cools it can contract and expand more than other glazing options. This cycle can lead to a loose fit of windows over time.

According to data from the British Plastics Fedaration the physical properties of Styrene (Polystyrene (High Impact) are that it is not very good when exposed to high heat with a maximum continuous use temperature of between 60 to 80 °C. This is coupled with the fairly low range the Notched Impact Strength data shows of 10.0 – 20.0 Kj/m². 

2. FSC Certified Timber: The Forest Stewardship Council (FSC) is an international organisation that is “dedicated to promoting responsible management of the world’s forests.” When you see the FSC certification it means the forest where this wood was sourced from is being managed in a way that preserves biological diversity, while ensuring it sustains economic viability. FSC-certified forests are managed to strict environmental, social and economic standards. FSC certified timber is comparable to Certified Timber

3. Cladding types identified: interlocking boards, interlocking log, tongue & groove, wood 

4. Global cladding data sourced from: All interlocking boards log cabins 

5. Top cladding data sourced from: Top 89 interlocking boards log cabins 

6. 11′ x 9′ cladding data sourced from: 104 11′ x 9′ interlocking boards log cabins 

7. Cladding thickness types identified: 19mm, 28mm, 34mm, 44mm 

8. Global cladding thickness data sourced from: All 19mm log cabins 

9. Top cladding thickness data sourced from: Top 89 19mm log cabins 

10. 11′ x 9′ cladding thickness data sourced from: 26 11′ x 9′ 19mm log cabins 

11. Roof covering types identified: heavy duty mineral felt, mineral felt 

12. Floor material types identified: tongue & groove 

13. Floor thickness types identified: 12mm, 14mm, 16mm, 18mm, 19mm 

14. Glazing material types identified: double glazed, horticultural glass, single glazed, styrene, toughened glass 

Product ID: SKU: 593737

Size: 11' x 9'

Merchants Checked: 12

Available From: 1

HomeBase
£3,250.00
See Deal

Support WhatShed: by making a purchase after clicking a link above, a portion of the sale supports this site.