Blackstone
Garden Rooms
Over 12m2
Image
Current lead time:
late August 2024

Blackstone

Garden Rooms

Over 12m2

Your desire for a better way when it comes to work, rest and play is right here, wrapped up in a beautiful Blackstone Garden Room. We understand that you need more space. More than 122 but still within permitted development regulations, our Blackstone Garden Room range caters for buildings up to 30m2.

five-tier Construction

Double-Glazed uPVC Doors & Windows

Redwood Pressure-Treated cladding
Suitable for all year round use
Our Specification

If you’re familiar with Gillies and Mackay, you’ll know we don’t muck around with our specifications. We love nothing more than to barter back and forth with new ideas, new technologies and a whole world of possibilities for design, specification and techniques.

Our Garden Rooms are made with a 5 tier wall specification that looks and sounds a little something like this…

Image

Five-tier wall construction:

Image
(for illustrative purposes only)
What this means:
Tanalised Scandi Redwood Weatherboard
For our Garden Rooms as standard we will always use 19mm thick tongue and groove redwood or Siberian Larch (depending on your preference) which is the first defence of many, against the Scottish weather.
Breather Cavity
Water, as far as we’re aware cannot ‘jump’ - which is why a Cavity is the perfect solution to halting any moisture ingress through the external weatherboard of our Garden Rooms. The cavity keeps the water on the outside and stops it from ‘jumping’ to the internal lining.
Breather Membrane
It’s a material that is water resistant but still allows air to flow. The membrane is lined between the cavity space and the OSB sheeting known as the cold side of the insulation. This prevents the moisture (as well as all the other elements) penetrating through to the internal of the Garden Rooms structure.
Oriented Strand Board (OSB)
We love a bit of OSB. It’s not our primary material it’s used as intended, to brace a structure. OSB is very strong and durable - Ideal for the internal structure of a wall rather than the finishing lining. Although there are plenty Hipsters who prefer a OSB lining just for the rustic look it can offer to the finished internals of our Garden Rooms 😉
Pressure Treated Graded Framing
Depending on the size of structure we may use heavier timbers, but as a standard we will never use less than 95mm x 45mm pressure treated C24 Graded framing. The strength of this timber is what you would expect to be used in new build homes.
Lining

V’D Lining - is Scandinavian Redwood. Like the external cladding it is tongue and groove but has a different profile finish. Both the fitting and finishing is carried out by Gillies and Mackay.

Plasterboard - perfect for a smooth, modern finish. After fitting, the plasterboard will need to be finished by a skilled decorator.

Case Studies
Looking for some inspiration? Here are three case studies to help you figure out what you do and don’t like. There’s no judgment here – everyone is different. So enjoy these ideas as inspiration including a full breakdown of costs.
Typical Blackstone Garden Room Specifications
3-tier outer wall:
  • 19mm Redwood Pressure-Treated Weatherboard
  • 22mm Breather Cavity & Membrane
  • 9mm OSB Structural Internal Board
  • 95mm x 45mm C24-Graded Pressure-Treated Framing (Minimum)
2-tier internal wall:
  • 100mm Knauff Insulation
  • 16mm V’d Lining / 12.5mm Foil Back Plasterboard
Components:
  • uPVC / Aluminium Windows & Doors
  • Casement Side Hung; Single/Double/Triple
  • Full Glass Tilt & Turn Sidelights
  • Full Glass French Doors
  • Full Glass Sliding Doors
Roof:
  • Nova Mica Steel Box Profile
  • 22mm Breather Cavity & Membrane
  • 16mm Tongue & Groove Roofing
  • 95mm x 45mm C24-Graded Pressure-Treated Framing (Minimum)
  • 100mm Knauff Insulation
  • 16mm V’d Lining / 12.5mm Foil Back Plasterboard
Floor:
  • 95mm x 45mm C24-Graded Pressure-Treated Framing (Minimum)
  • 25mm Breather Cavity
  • 70mm Foilback PIR Insulation
  • 22mm EGGER Flooring
Alternatives & Options:
  • Isola Roofing Shingles
  • Radiata Cladding
  • Close Board & Strap Cladding
  • Velux
  • Quickstep Laminate Flooring
  • Roundline Guttering
  • Wood Burning Stove
  • Wallpapering
The Kindrogan
Polyhedron phenomenon
Image

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 with the Isola shingles as standard.

Shape & Style
ImageImage
Sizes & Pricing
Size (ft)
Price
8'
x
8'
2.4m
x
2.4m
£11,247
10'
x
8'
2.7m
x
2.7m
£12,747
10'
x
10'
3m
x
3m
£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
Image

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 Isola shingles 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'
2.4m
x
2.4m
£11,247
9'
x
9'
2.7m
x
2.7m
£12,747
10'
x
10'
3m
x
3m
£13,797
Prices include VAT, delivery and assembly within 40 miles of Errol
enquire about this designSpeak to our team
Sign Up to Our Mailing List
Join the Sheddie clan by email to receive exciting product updates, exclusive offers, get a heads up on our upcoming delivery dates and so much more...

    Image
    Project management service

    Included with all Blackstone Garden Room builds – our expert team at Gillies & Mackay will help you through the entire process of creating the garden room of your dreams.

    Every Blackstone Garden Room is a custom project, but the typical process includes the following steps:

    Initial Consultation
    You’ve got an idea, or a plan, or maybe even a set of measurements. But you need to speak to an expert to work out how it all comes together. That’s what our consultations are for.

    Design Brief & Quotation
    We bring all this information and your wants, needs and plans together in the shape of your dream building, and provide a quotation for your bespoke Blackstone Garden Room.
    Accredited Trade Introduction
    We coordinate with our accredited trades to start the ball rolling for groundworks, electrics, and any other necessary work. They’ll carry out a site visit and discuss your requirements with you.
    Preliminary Site Survey
    One of our team will visit the proposed site of your Garden Room and ensure that all of your plans are possible. This paves the way for a smooth, easy delivery.
    Full Cost of Works
    This includes Building, Groundworks, Electrics and Internals. You’ll receive full project costs before you decide to proceed.
    Order Acceptance & Delivery Dates Confirmed
    Now it’s getting exciting! You’ll confirm your order, pay your deposit and receive delivery and assembly dates.
    AutoCAD Representations Sign Off
    We send you drawings of your building detailing all the sizes and specifications for you to approve.
    Planning Application
    If planning permission is needed, we offer an additional application service and deal with all communications relating to your building.
    Groundworks commence
    We supply your chosen contractor with the specifications for your concrete base or ground screws, and step one of your project gets underway.
    2nd Site Visit

    Once the groundwork is done, we’ll confirm completion with a second site visit or photography. 

    Workshop Manufacturing
    Next, it’s over to the workshop, where our Operations Team handcraft your Blackstone Garden Room according to your requirements.
    Onsite Construction of Building
    On delivery day, our Delivery Team will erect the walls and roof of the building.
    Electrical First Fit
    Our accredited electricians complete their first fit, laying out the wiring and hardware needed for your design.
    Onsite Internal Insulation and Lining
    The Delivery Team will return to insulate and line your building, according to your requirements.
    Electrical Second Fit
    The electricians complete the sockets, switches and interior finishings of your power installation.
    Onsite Final Finish

    The Delivery Team install rims, strips, flooring, finishings and skirtings, and your building is complete!

    We manage and coordinate this entire process so your Blackstone Garden Room is installed and perfected with minimal disruption or inconvenience.

    Want to know more?
    Head to our appointment booking page where you can choose from a phone call, video call or show area appointment.
    Start your shedlife journey todayBook your consultation