Sheds
Three Tier Sheds
                        Current lead time:
                        late August 2024
                        Sheds
                        three tier sheds
                        Superior Sheds

                        Sometimes you don’t just need a Shed: you need a massive Shed.

                        We call these buildings our Three Tier Sheds. They’re substantial buildings suitable for year-round use that give you so much more than just storage.

                        Whatever project you have in mind, it deserves sturdy accommodation that is guaranteed to repel Scotland’s harsh weather. So we created our robust 3-Tier specification for Sheds larger than 12m2, providing you with a dedicated space that’s securely protected against the elements.

                        Key features
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                        19mm Tongue & Groove Redwood Tanalised Weatherboard
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                        70mm x 45mm Pressure-Treated C24-Graded Framing
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                        Nova Mica Steel box profile roofing

                        The 3-Tier specification has an outer wall and an inner wall, separated by a breather cavity. This unique structure deals with all the moisture that is thrown at your Shed on the outer wall, ensuring that its contents stay the way they should be - safe and dry.

                        Looking for costs?View Price List

                        G&M Three-Tier construction:

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                        (for illustrative purposes only)
                        three tier Shed Specifications
                        Key features:
                        • 19mm Tongue & Groove Redwood Tanalised Weatherboard
                        • 22mm Breather Cavity & Membrane
                        • 9mm OSB Internal Structural Board
                        • 70mm x 45mm Pressure-Treated C24-Graded Framing
                        • 16mm Tongue & Groove Timber Roofing
                        • Membrane & Batten Roof Cavity
                        • Nova Mica Steel Box Profile (20yr Guarantee)
                        • 19mm Tongue & Groove Redwood Flooring
                        • 75mm x 47mm Pressure Treated floor joists
                        Available Extras:
                        • Windows: uPVC Double Glazed Windows
                        • Doors: uPVC Full Clad Single/Double Doors
                        • Fully Insulated and Lined
                        • Shelving and Benches
                        30 Year Guarantee
                        Since 1989, our dedication to quality has ensured that our Garden Rooms, Garages, and Sheds have endured through all these years. With a little tender loving aftercare, combined with our 30-year guarantee, you can experience the peace of mind that comes with knowing your G&M building is built to last.
                        Read our guaranteeConditions apply
                        three tier Shed Price List

                        The prices you see below are for standard Apex sizes. If you require a different size or customisations - these can be discussed and priced upon request.  All models feature the mighty Steel Box Profile roof as standard with a 20 year manufacturers guarantee.

                        Book your consultation below to start your shedlife!

                        Size (ft)
                        Price
                        14'
                        x
                        8'
                        4.2m
                        x
                        2.4m
                        £5,500
                        14'
                        x
                        10'
                        4.2m
                        x
                        3m
                        £6,930
                        16'
                        x
                        8'
                        4.8m
                        x
                        2.4m
                        £6,325
                        16'
                        x
                        10'
                        4.8m
                        x
                        3m
                        £7,920
                        Large spanning sheds are more susceptible to water ingress and therefore require a cavity. The 3-Tier specification stops any moisture from getting into your shed.
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                        Please Note: 3-Tier construction upgrade is available on all shed sizes – contact us for a bespoke quote.

                        Read our prep guide

                        Sheddies! You've probably got some questions about the prep work required to get ready for your new Gillies & Mackay shed.

                        We've got you covered – here's everything you need to get started.

                        Get Sheddie Ready!Read the guide
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                          Made to order
                          If you’ve got something specific in mind, book a consultation to talk to us about custom-builds. We can guide you through all the possibilities and design, manufacture and deliver a shed that’s perfect for you.
                          Start your shedlife journey todayBook your consultation