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20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors (12mm Tongue & Groove Walls, Floor & Roof)

First Added - February 27 2022
Last Updated - August 4 2022 - 12 Data Points Updated - 3 Data Points Added
Reviewed & curated by a panel of garden building experts. Using methodology 1.1

Product ID: SKU: 39213

Size: 20' x 10'

Merchants Checked: 12

Available From: 1

Mano Mano
£5,896.78
See Deal

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

73
Average Ranked in the Top 75% of Sheds.
Position 4041 of 5459 Sheds - Down 1,091 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 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors

The 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors comes with an apex style roof, holds a 10 Years guarantee, fit with double doors, and is treated using a pressure treated process [1]. The windows window used on this particular 20′ x 10′ use a glazing material (Thickness was not specified).

Base material: wood

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 shiplap tongue & groove cladding used on this shed is one the best available for sheds rated by our experts.

2. A 12mm thick cladding like the one used on walls of this shed is one of the best rated by our experts.

3. A pressure treated treatment like the one used on this shed is one our experts are happy to say is one of the best around.

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

Cladding

Amazing, our experts say most of the cladding options used are among the best.

The shiplap tongue & groove cladding(walls) used here is one of the best forms of construction for shed walls out of the 4 types [2] we’ve identified on same-size sheds, that you’ll also see getting used on 31% (1,373 of 4,360) of all sheds analysed [3], as well as being used on 42% (185 of 436) of the top 10% of sheds [4]. You’ll also find the shiplap tongue & groove cladding showing up on 56% of 20′ x 10′ sheds (91 in total) [5], and when taking the average Expert Score of those 20′ x 10′ sheds (86), the 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors is just above the average with an Expert Score of 87.

The walls are 12mm thick and we rate this the best thickness out of the 9 found on same-size sheds [6]. It is used on 54% of all sheds [7] and is also used across 58% of the top 10% of sheds [8] we analysed. Even though the Expert Score of this particular shed is 2 points below the average 12mm clad 20′ x 10’s score of 89, the fact that 58% of the top 10% use a cladding this thick is reassuring as a sign of quality. 67% of 20′ x 10′ sheds (109 in total) use 12mm thick walls [9].

Read full analysis for cladding.

Roofing

Osb is the of construction method used for the roofing, our experts rate this one of the best forms of roof material out of the 2 types we’ve found on same-size sheds [10]. This roofing material is used on 18% of all sheds analysed, and 8% of the top 10% of sheds. 4% of 20′ x 10′ sheds (6 in total) use osb construction for the roof, with this product having an Expert Score 7% higher than the average in this regard.

A 11mm thick roof boarding was used on this shed which is an about average thickness used for a roofing material out of 8 thicknesses identified on same-size sheds [11]. It’s used on 5% of all sheds with a further analysis of the top 10% of sheds (436 in total) showing us that none of them use a roof of this thickness. Our data on all 20′ x 10′ sheds shows us this is the only one to use a 11mm roofing solution.

Read full analysis for roofing.

Flooring

The manufactures of this shed chose osb for the floor construction, we rate this an about average form of floor construction out of 2 types found on same-size sheds [12]. This type of floor construction is used on 20% of all sheds we analysed, and 5% of the top 10% of those sheds. 7% of 20′ x 10′ sheds (12 in total) use osb construction for the floor. Additionally when taking the average Expert Score of those 20′ x 10′ sheds (86), the 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors is just above the average with an Expert Score of 87.

A 11mm thick floor boarding is used here, this is an about average floor board thickness according to our experts out of 9 found on same-size sheds [13]. It’s found on 9% of all sheds and used on 1% of the top 10% of sheds. 6% of 20′ x 10′ sheds (9 in total) use 11mm thick floor boarding, and when taking the average Expert Score of those 20′ x 10′ sheds (87), the 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors is the same with an Expert Score of 87.

Read full analysis for flooring.

Height

The Height of this shed is 1829mm (6′) which sits right on the average height of all 20′ x 10′ sheds.

Read full analysis for height.

Doors

The door height is 20,879.00mm (68′) tall which is 38% or 5,734.04mm (19′) taller than the average 20′ x 10′.
The door width is 16,459.00mm (54′) wide which is 37% or 4,479.64mm (15′) wider than the average 20′ x 10′.

Read full analysis for doors.

You Might Also Consider

We found 137 20′ x 10′ sheds with comparable specifications. The 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors has an Expert Score that is 1% higher than average and is £26 more expensive than average. If you are looking for the best value or highest expert scoring sheds out of the 137 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 £8,025 with this Optional extra – Add top coat Workspace Shiplap 10′ x 20′ Dip Treated Shed Double Door with Four Opening Window Top Coat. It is priced at £399, this is 2009% less than this and has an Expert Score of 92, 5 points higher than the 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors.

Highest Expert Score – With an Expert Score of 90 vs 87 for this product, the 10’ x 20’ Shire Workspace Premium Double Door Wooden Garden Shed is the best 20′ x 10′ shed with comparable specifications, and is priced at £2,779, that’s £5,645 less than the 20 x 10 WINDOWLESS Reverse Premier Pressure Treated Tongue And Groove Apex Shed With Higher Eaves And Ridge Height Double Doors.

High Wind Area – If you live in a particularly exposed or high wind area then having a shed with a thicker cladding and higher than average frame thickness can be preferable. We found at least 3 sheds that have a combination of features that can make them more suited to higher wind areas.
10’ x 20’ Shire Workspace Premium Double Door Wooden Garden Shed
6 x 3m Insulated Garden Room
18’x10′ Tiger Workman Apex

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 sheds that have a combination of features that can make them more suited to higher wind areas.
10′ x 19′ Lotus Anthracite Grey Double Door Metal Garage
10′ x 19′ Lotus Anthracite Grey Double Door Metal Workshop
11′ x 17.2′ Palram Canopia Yukon Dark Grey Plastic Shed

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 sheds that have options that you might find a better fit if this is a concern you have.
10′ x 19′ Lotus Anthracite Grey Double Door Metal Garage
10′ x 19′ Lotus Anthracite Grey Double Door Metal Workshop
11′ x 17.2′ Palram Canopia Yukon Dark Grey Plastic Shed

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.
10’x20′ Palram Canopia Olympia White Patio Cover With Clear Panels
10’x18′ Palram Canopia Olympia Grey Patio Cover With Clear Panels
10’x20′ Palram Canopia Olympia Grey Patio Cover With Clear Panels

Product Details

Building Type
Apex Sheds, Cheap Large Sheds, Double Door Sheds, Extra Large Sheds, Garden Sheds, Large Shed Workshops, Large Sheds, Pressure Treated Sheds, Shed with Windows, Shiplap Sheds, Tongue and Groove Sheds, Wide Sheds, Wooden Sheds, Workshop Sheds
Metric Size (Meters)
20' x 10'
Material
Wooden
Roof Style
Apex
Number of Windows
1
Door Type
Double Door
Cladding Type
Shiplap Tongue & Groove
Cladding Thickness
12mm
Treatment Type
Pressure Treated
Guarantee
10 Years
Floor Material
OSB
Floor Thickness (Imperial)
11mm
Floor Thickness (Metric)
11mm
Eaves Height (Imperial)
21946mm
Eaves Height (Metric)
21946mm
Ridge Height (Imperial)
29261mm
Ridge Height (Metric)
29261mm
Door Height (Imperial)
68'
Door Height (Metric)
20879mm
Door Width (Imperial)
54'
Door Width (Metric)
16459mm
Roof Material
OSB
Roof Thickness (Imperial)
11mm
Roof Thickness (Metric)
11mm
Height (Imperial)
1829mm
Height (Metric)
1829mm
Ridge Height
96"
Eaves Height
72"
Thickness
12 mm
Depth
10ft (120")
Height
1.829 m
Width
20ft (240")
Door Size
54" Wide x 68.5" High
Roof Style
Apex
Window Size (Metric)
nan x nan
Door Size (Imperial)
16459mm x 20879mm
Door Size (Metric)
16459mm x 20879mm

Comparisons of Similar Sheds

si-001-001-0013_01_1si-001-001-0015-nw_72dpi_6_overlap-features-apex-overlap-fruther_113555788-5624949333368788
Expert Score 7575787878
Price £303.00£254.99£1,284.00£469.00£1,310.00
Size 6' x 3'4' x 3'10' x 14'3' x 5'0' x 0'
Brand BillyOhMerciaAdleyRedlandsMercia
Material WoodenWoodenWoodenWoodenWooden
Cladding Thickness 7mm7mm9mm
Guarantee 10 Years10 Years10 Years10 Years10 Years
GoGoGoGoGo
Joel Bird

Joel Bird

Author

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.

ManoMano UK – 922302 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.
Wilko.com – 21232 products checked, found no matches.
Homebase – 35509 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. Pressure Treated: Considered the most durable wood treatment, this is where the wood undergoes a process called tanalisation. This is where the timber is submerged in specialist wood preservatives (such as Tanalith E, this is actually the origin of the word ‘tanalisation’), this is a unique combination of copper and organic biocide ingredients (it is the copper that gives the finished wood the slightly green colour). The wood then goes into a high pressure vacuum tank (the Wood Protection Association has a good article/video on this) to draw out excess moisture and air and force in the preservatives.

This deep penetration of the exterior wood protects it from the elements and all forms of insect attack. Wood treated this way can last many years without being re-treated. The BS 8417 code of practice (this advises on the choice of timber species and the use and application of wood preservatives) says “ penetration to either 6 mm (15 years) or 12mm (for 30 years) has to be achieved in any exposed surface in sawn material.”

It is also worth noting that if cross cutting, notching or boring treated timber during or after installation, ALWAYS apply an end grain solvent-based (or oil-based) wood preservative treatment to the freshly exposed areas, this will maintain the integrity of the protection. NEVER put cut ends in the ground, even if end grain coated. 

3. Global cladding data sourced from: All shiplap tongue & groove sheds 

4. Top cladding data sourced from: Top 436 shiplap tongue & groove sheds 

5. 20′ x 10′ cladding data sourced from: 162 20′ x 10′ shiplap tongue & groove sheds 

6. Cladding thickness types identified: 7mm, 8mm, 12mm, 16mm, 44mm, 72mm 

7. Global cladding thickness data sourced from: All 12mm sheds 

8. Top cladding thickness data sourced from: Top 436 12mm sheds 

9. 20′ x 10′ cladding thickness data sourced from: 109 20′ x 10′ 12mm sheds 

10. Roof material types identified: osb, tongue & groove 

11. Roof thickness types identified: 8mm, 9mm, 11mm, 12mm, 19mm 

12. Floor material types identified: osb, tongue & groove 

13. Floor thickness types identified: 9mm, 11mm, 12mm, 14mm, 16mm, 19mm 

Product ID: SKU: 39213

Size: 20' x 10'

Merchants Checked: 12

Available From: 1

Mano Mano
£5,896.78
See Deal

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