Lets make the best sheds in the world!

The Gillies and Mackay adventure started with sheds. Sheds aren’t just part of our history, they’re an important part of the present and the future of the business.

Maybe you’re looking for an Apex, Pent or Potting shed?

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Apex Sheds from Gillies & Mackay

What our sheds are made from

All our buildings are made with 19mm thick tongue and groove Scandinavian Pine; a strong dense Redwood far superior to that of Romanian nonsense or dare I say Whitewood…

Our starting frame size is; 75mm x 38mm with a celcurised pressure treatment and this is what is used on all our Sheds. However, size dependent, when it takes our fancy we’ll beef it up for narrow gables, big roofs exposed sites, that sort of thing.

We use 16mm tongue and groove sarking on our Sheds. Small Apex sheds are guaranteed with their heavy duty Polyflex felt (10 year manufacturers guarantee), however as stated, steel is required for larger sheds, garages and pent pitched roofs.

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Steel Box Profile Roofing Disclaimer: –

This is Scotland. It rains a lot. In fact it’s probably raining now. What happens when it rains? Stuff leaks; your shoes, your car, your house roof and if you don’t choose wisely – your shed. To make sure that doesn’t happen to our sheds, we put steel on the roof when the design or size exceeds our felt limitation. That’s on top of the Sarking boards so there’s no need to worry about roof condensation.

“Steel box profile roofing is required for Pent pitched roofs and Apex pitched roofs spanning more than 4 meters to maintain their guarantee.”

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Apex Sheds from Gillies & Mackay


Our Sheds are floored with 75mm x 45mm celcurised joists and 19mm tongue and groove flooring. We also use the same joist profile for the bearers when assembling the Shed.


All of this fancy timber needs a decent paint! Your building comes with a basecoat only. Make sure you re-treat your building within 3 weeks of assembly to maintain your guarantee. We’re joiners, not decorators so we think it’s best to leave the finishing coat to the experts.

Apex sheds page link
Pent sheds page link
Potting sheds page link

The G&M shed checklist will take you through all the steps and options to think about before purchasing your very own G&M shed.
Read through the G&M Shed Buying Guide and use your checklist along the way.
Once it's completed, you'll be ready to join the G&M family!

Download the G&M Shed Checklist

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