After being shortlisted for a Charity Award in 2009, Scottish charity Mary’s Meals now has its eyes on an altogether different prize – Shed of the Year.

The international aid charity has made it through to the finals of the UK’s premier shed competition having been nominated for its international headquarters, which are indeed a shed.

‘Calum’s shed’, in Dalmally, Argyll, beat over 100 other sheds in the ‘garden office’ category, and will now be judged by a panel of shed experts including TV presenter Sarah Beeny and Radio 2 DJ Simon Mayo.

First prize is £1,000, enough to give 106 children school lunches for a year, along with a year’s supply of wood care products, which could be used on other buildings on the shed’s site.

While the charity has grown in recent years, now operating an office and warehouse in Glasgow and shops around Scotland, the corrugated tin building remains its international base.

The shed first came to charitable use during the Balkans conflict, when Mary’s Meals founder Magnus MacFarlane Barrow borrowed it from his father Calum to store donations of blankets and medicines before sending them to victims in Bosnia.

"My dad's shed has always had a special significance for me, and through the Shed of the Year vote I've discovered that the place where I played pool as a teenager means a lot to a lot of other people as well," says Barrow Jr.

"Mary's Meals has had a remarkable journey, starting as a small aid organisation and growing to become a charity that helps than 500,000 children.

“Calum's shed has been a part of that story from the beginning, and we hope it will continue to play a role for many years to come.”

It faces nine sheds in the competition final, including a pub shed, a museum and a shed shaped like a tardis.

The winner will be announced during National Shed Week, which starts on July 4.