The all new G&M

Garden Rooms
Under 12m2
A Gillies & Mackay Garden Room Scotland. A Radiata Rannoch Garden Room with double-glazed windows and doors.

The all-new G&M

Garden Rooms

Under 12m2
All-Season Sanctuary

Engineered four-layer construction designed to ensure year-round comfort and durability. These garden rooms feature revolutionary Radiata pine ThermoWood and sleek, secure aluminium double glazing – allowing you to elevate your outdoor experience with a space designed for all seasons.

four-Layer Engineered Construction

105mm thick exterior walls

Double-Glazed Aluminium Doors & Windows

Radiata heat treated 50-year life cladding
Suitable for all year round use
Made in Scotland

and right at home, too

Standing strong against Scotland's... challenging weather, our new specification allows you to use your garden room as you want it – in wind, rain, hail, snow or shine.

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four layer construction:

A diagram of the Gillies & Mackay U12m2 Garden Room specification, showing all three layers.
(for illustrative purposes only)
What this means:
Radiata Pine Weatherboard
Five times more expensive than untreated redwood pine, this superior weather-resistant wood cladding is thermo-treated to remove moisture, resulting in a solid exterior resistant to both movement and mould.
Breather Cavity
This prevents water ingress, safeguarding against moisture, preserving both your garden room's longevity and your peace of mind.
Insulation Board

Provides year-round comfort, shielding you from the elements. Insulated walls keep you cosy in winter and cool in summer, while saving on energy costs.

V'd Lining

To finish off your garden room, the internal walls are lined with interlocking cladding panels offering a touch of class and sophistication - the G&M way.

Engineered elegance
for your garden
These models are all under 12m2 which gives us the ability to create an all-new simplified specification, giving you all the versatility of a large garden room without the price tag.
Please Note: This specification is not available above 12m2

Within permitted development

Assuming all location factors are adhered to, all four designs meet permitted development requirements.
Suitable all year round
Fully lined and insulated, three-layer construction keeps you warm and dry in the winter and cool in the summer.
No concrete plinth required
Thanks to the simplified and lighter design, only a level slabbed area or ground screws are required.
Eco-friendly
Made with recyclable and sustainable materials, and all suppliers are certified.
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    Premium Aluminium double glazing
    Slimline & Superior

    Aluminium double-glazed windows offer unrivalled durability and sleek design, surpassing standard uPVC units. Their slim profile complements our garden room designs, allowing you to maximise the natural light from your garden without compromising on insulation.

    All sizes and designs come as standard with:
    One set of aluminium double glazed double doors
    Two aluminium double glazed windows
    Choose your design
    Steel roofed designs
    These garden rooms are traditional apex and pent designs, so to maximise strength and durability we include steel box profile roofing on these models.
    Specification:
    • 19mm Tongue & Groove G&M Profile Cladding
    • 70mm x 45mm Pressure Treated C24 Graded Framing
    • 50mm Foilback Rigid Board Insulation (walls, roof, floor)
    • 16mm Redwood V'd Lining
    • 19mm Redwood Tongue & Groove Flooring.
    • 16mm Sarking
    • Membrane & Batten
    • Nova Mica Steel Box Profile Roofing (Anthracite Grey)
    Doors:
    • One Set of Double Glazed Double French Doors
    • Size: 1860mm (h) x 1470mm (w)
    • Aluminium Frame (Anthracite Grey)
    Windows:
    • 2 x Double Glazed Single Windows
    • Size: 1350mm (h) x 600mm (w)
    • Aluminium Frame (Anthracite Grey)
    The Rannoch
    Perfectly perpendicular
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    Our long-standing traditional Canadian design, The Rannoch is an A-frame apex roof design, square or rectangular in body, which sits proudly in any setting.

    This was the very first Gillies & Mackay Summerhouse which came to life in the 80s but was rediscovered by you in our new Garden Room Specification for 2024. Ideal for year-round use, The Rannoch is your safe haven for work or play.

    Shape & Style
    ImageImage
    Sizes & Pricing
    Size (ft)
    Price
    10'
    x
    8'
    £10,797
    10'
    x
    10'
    £12,447
    12'
    x
    10'
    £13,297
    Prices include VAT, delivery and assembly within 40 miles of Errol
    enquire about this designSpeak to our team
    The Vorlich
    Fancy Pents
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    The hugely popular pent minimalist design, The Vorlich is our homage to the Garden Room world. Highly sought amongst those in built-up areas with Permitted Development restrictions.

    The Vorlich is discreet and kept within planning tolerances to give you peace of mind when taking some time to yourself in the warmth and luxury of ShedLife.

    Shape & Style
    ImageImage
    Sizes & Pricing
    Size (ft)
    Price
    10'
    x
    8'
    £10,797
    10'
    x
    10'
    £12,447
    12'
    x
    10'
    £13,297
    Prices include VAT, delivery and assembly within 40 miles of Errol
    enquire about this designSpeak to our team
    Eco Slate roof designs

    Frequently featured on Grand Designs – Eco Slate tiles are made from 100% recycled plastic and are well renowned for their durability. Covered by a 50-year warranty, these slates have undergone rigorous testing, withstanding winds up to 110mph and earning a Class 4 impact rating. They are fire-resistant and compliant with the BS476: Part 3: 2004 standard, boasting a Class 'A' rating.

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    Specification:
    • 19mm Tongue & Groove G&M Profile Cladding
    • 70mm x 45mm Pressure Treated C24 Graded Framing
    • 50mm Foilback Rigid Board Insulation (walls, roof, floor)
    • 16mm Redwood V'd Lining
    • 19mm Redwood Tongue & Groove Flooring.
    • 16mm Sarking
    • Membrane & Batten
    • EcoSlate Roof Tiles (Anthracite Grey)
    Doors:
    • One Set of Double Glazed Double French Doors
    • Size: 1860mm (h) x 1470mm (w)
    • Aluminium Frame (Anthracite Grey)
    Windows:
    • 2 x Double Glazed Single Windows
    • Size: 1350mm (h) x 600mm (w)
    • Aluminium Frame (Anthracite Grey)
    The Kindrogan
    Polyhedron phenomenon
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    The Kindrogan is a pyramid roof on a Rannoch body, a hybrid design to give you the best of both worlds.

    Much like The Rannoch, The Kindrogan Garden Room gives you the versatility of the square/rectangular room for the best use of space whilst having the extra finesse of the shaped roof - which comes tiled in EcoSlate as standard.

    Shape & Style
    ImageImage
    Sizes & Pricing
    Size (ft)
    Price
    8'
    x
    8'
    £11,247
    10'
    x
    8'
    £12,747
    10'
    x
    10'
    £13,797
    Prices include VAT, delivery and assembly within 40 miles of Errol
    enquire about this designSpeak to our team
    The Deuchny
    Five sides of wonder
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    A shaped goddess comprising of a five-sided roof with an angled corner back, perfect for gardens with limited space. The Deuchny’s pitch comes together in the centre creating an outstanding focal point.

    Her roof is EcoSlate which is beautiful, sustainable and replicates the traditional slate roof for that extra bit of flair.

    Shape & Style
    ImageImage
    Sizes & Pricing
    Size (ft)
    Price
    8'
    x
    8'
    £11,247
    9'
    x
    9'
    £12,747
    10'
    x
    10'
    £13,797
    Prices include VAT, delivery and assembly within 40 miles of Errol
    enquire about this designSpeak to our team
    Optional Extras
    Laminate Flooring
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    The Garden Rooms (under 12m2) are constructed with a 19mm thick tongue and groove subfloor. We offer laminate flooring as an optional extra, however, should you prefer a different floor covering you need to arrange this yourself. The subfloor is not advised to be used as the finished floor.
    Rannoch & Vorlich
    Size
    Price
    10' x 8'
    £750
    10' x 10'
    £910
    12' x 10'
    £1,100
    Deuchny & Kindrogan
    Size
    Price
    8' x 8'
    £620
    9' x 9'
    £790
    10' x 10'
    £990
    Guttering
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    The Garden Rooms (under 12m2) do not come with Guttering as standard. We advise that all basework be constructed with a soakaway in mind to allow the water to run off the roof and be drawn away from the building.

    It would be advisable for 10' x 10' & 12' x 10' size of the Rannoch and Vorlich to opt for guttering given the amount of water shed. Guttering is not available on the Kindrogan or Deuchny designs, nor do we believe it to be needed presuming that soakaways are created

    Rannoch
    Size
    Price
    10' x 8'
    £340
    10' x 10'
    £450
    12' x 10'
    £450
    Vorlich
    Size
    Price
    10' x 8'
    £210
    10' x 10'
    £230
    12' x 10'
    £260
    Deuchny & Kindrogan
    Size
    Price
    8' x 8'
    £450
    9' x 9'
    £450
    10' x 10'
    £450
    Opening Window
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    Optional Opening Windows
    Option
    Price
    Opening Window (1350 x 600mm)
    £600 each
    Ground works

    The Garden Rooms (under 12m2) require either a full slabbed area or a ground screw base. Both are priced as an estimate and are subject to site visit.

    Ground Screws
    ground screws base
    Garden Room
    Guide price (Oct 2023)
    8' x 8'
    £1,200.00
    9' x 9' / 10' x 8'
    £1,400.00
    10' x 10'
    £1,400.00
    12' x 10'
    £1,600.00
    Prices can vary considerably, depending on your site access and the existing level of your garden.
    Please note
    Slabbed bases
    slabbed base
    Garden Room
    Guide price (Oct 2023)
    8' x 8'
    £1,400.00
    9' x 9' / 10' x 8'
    £1,600.00
    10' x 10'
    £1,850.00
    12' x 10'
    £2,200.00
    Please note
    Prices can vary considerably, depending on your site access and the existing level of your garden.
    Electrics
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    The Garden Rooms (under 12m2) in the Tayside and Fife Area are hooked up by Jamie and Lee, our electricians from RC Electrical. Prices are estimated and are subject to a site visit, as well as your own preferences on power points and finish.

    Garden Room
    Guide price (Oct 2023)
    8' x 8'
    £1,188.00
    9' x 9' / 10' x 8'
    £1,188.00
    10' x 10'
    £1,450.00
    12' x 10'
    £1,450.00

    Prices SUBJECT TO SITE VISIT

    Please note
    Want to know more?
    Head to our appointment booking page where you can choose from a phone call, video call or show area appointment.
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