6m x 3m Insulated Garden Room - Timberdise

6m x 3m Insulated Garden Room

£11,279.99 £11,179.99 Inc VAT

Elite Timber Base

Don’t have a ground base but need one? We are now offering Elite Timber Bases which can be purchased with your Insulated Garden Room and installed by our team. So if you don’t have a base then there’s no need to worry, we will take care of that for you!

Please see below for lead times on buildings:

Garden Rooms - 8 to 10 weeks
Economy Cabins - 4 to 8 weeks for most economy cabins but please contact us if you require a more exact lead time
Premium Cabins - Currently Unavailable
All other buildings - Currently Unavailable

Due to increased demand and supply delays some buildings remain 'out of stock' for the foreseeable future, for further information please contact us or send us an email to be placed on the priority waiting list!


10 Year Anti Rot Guarantee

Double Glazed Opening Windows

Fully Insulated with Eco Quilt Insulation

72mm Thick Double Skinned Walls

Free Home Installation included in the price and Free Delivery for 95% of the UK (see delivery info)

Roof and Floor Included as Standard


Key Features

Under 2.5m in Height – No Planning Required

FREE Installation

Fully Double Glazed, 14mm thick Argon filled glass units

Fully Insulated Roof, Floor and Walls

72mm thick, double skinned and insulated plain panels

Work in comfort in this fully insulated, double glazed garden room. With free delivery and installation, we take all the headaches out of getting your home office (or entertaining room) set up.


Please Note: Sizes are approximate only. For specific details, please consult our technical department.

Imperial Size (ft) 20 x 10
Cladding Style Shiplap+
Roof Material OSB & 12mm Matchboard
Floor Material 16mm Matchboard
Roof Type Flat Roof
Door Style Double Door
Building Type Garden Room
Metric Size (Meters) 6 x 3
Wall Thickness 72mm
Imperial Metric
Width 6.17m
Depth 3.86m
Door Width 1.50m
Door Height 1.85m
Internal Width 5.94m
Internal Depth 2.95m
Base Width 6.12m
Base Depth 3.12m



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10 Year Anti Rot Guarantee

This Product carries the 10 year Anti Rot guarantee as long as the garden building is well maintained.

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Strong Floor Bearers

Thick floor bearers provide extra support for the building and raise it off the ground, essential for protecting the building against damp and rot.

log cabin safety glazing illustration

Safety Glass Glazing

This building has been fitted with EN 12150 certified safety glass for a safer, stronger building.

Made in the UK illustration

Made in Britain

All our log cabins are made here in the UK, by our skilled workforce.

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Double Skinned and Insulated Walls

A layer of 12mm tongue and groove board, reflective multi-foil insulation and 16mm Shiplap+ cladding come together to form fully insulated, strong and robust panels.

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EPDM Roof Covering

Features a waterproof synthetic rubber compound roof covering that will protect your roof for up to 50 years.

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Stylish Gold Ironmongery

Features elegant gold handles and hinges with a mortice lock and key for added security.

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Modular Design

Our modular design allows you to create your dream garden room in any style, size and layout.

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Opening Double Glazed Windows

Features opening windows with double glazing as standard, to both insulate and ventilate your building.

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Shiplap+ Cladding

Constructed using high quality timber, our Shiplap+ cladding offers a premium, weatherproof build with a stylish finish.

Installation and Lead Times

The price on these buildings includes delivery and installation. So when these buildings are purchased we will contact you to discuss the building and make sure you have the correct base down ready for when our installers arrive to install the building.

The lead time to you receiving the building is 6 to 8 weeks from placing the order. If you require any additional information please feel free to contact us on 01302 811838 or send us an email to support@timberdisegardenbuildings.co.uk

Free Delivery Exclusion Postcodes

These insulated garden rooms come with delivery and installation included in the price for the majority of the mainland UK. There are certain postcodes where there is a surcharge for delivery and installation, please see below for the exclusion postcodes with the additional charge of £899.99:

England – TR/PL/TQ/EX19, 20, 21, 22, 23, 33, 38, 39.

Northern Ireland & Eire – We cannot offer delivery or installation

Scotland – Postcodes north of CA and NE will require a £299.99 surcharge. Effectively DG/TD/KA/ML/EH/G/FK – with the exception of G63, 83,84 and FK9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21.

Postcodes north of the above, including G63, 83,84 and FK9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21 i.e KY, DD, AB, KW, IV, PH, PA will require a £899.99 surcharge.

Wales – NP/CF/SA19, 20, 35,36,38,39,41,45,46,47,48,62,63,64,65 / LL11 , 12, 13, 14, 15, 17, 18, 19, 20, 21, 29, 31, 32, 33, 34, 57, 60, 65 –  No additional charge. The following Welsh postcodes require a £899.99 surcharge. These postcode are all the remaining postcodes in SA and LL, LD and SY 17, 18, 19, 20, 23, 24, 25.

Ground Base Info

The first thing is not to get confused between the base and the floor. All of the buildings supplied by Timberdise Garden Buildings come with floors. Base is something you will need for your new building to be erected upon. You need to make sure you get this ready before installing your new building, it’s the most important part. So lets start with what is an unsuitable base.


What is an unsuitable base?

  • Uneven ground
  • Soft Ground (such as a mud or grass area)

To explain further, if you have a patio area and the patio area is uneven we would deem that unfit to place one of our wooden garden buildings on. Another example would be if you wanted to install the new building on a grassy area or on muddy ground this would also be unfit for one of our wooden garden buildings. Also under no circumstances should you fit on any sort of gravel.

So what base do I need?

  • A solid level base, that offers support and durability for my new wooden garden building.
  • The most common bases people use for wooden garden building are patio/slabbed areas or some people get the are concreted by a professional trades person in that particular field. This is because the base needs to be thick enough to support the weight of your new building but also it needs to be the correct size, level and 100% flat. If the base dips or rises anywhere throughout the base it will stop your new building being installed correctly and in some extreme cases it will be impossible to install. For more information please contact us for advice.
  • Some people choose to have a wooden base, very similar to that used for deck boards. This is also fine but please make sure that you have a professional to make sure they use the correct Timber with the required strength to support the building.
  • If you have any questions at all regarding bases please contact us for our FREE advice. We want your new building to still be standing in years to come.



We offer a 14 day money back guarantee on all of our items. The guarantee commences from the date which you receive your item and we offer a free collection service as part of this agreement.

The building must be returned in its original, untreated, resalable condition. Until the item is collected by our courier, it’s the responsibility of the customer to ensure that the building remains in this condition.

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