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A1 Heavy Duty Metal Garage 10x20

A1 Heavy Duty Metal Garage 10x20

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A1 Heavy Duty Metal Garage 10x20 A1 Heavy Duty Metal Garage 10x20 A1 Heavy Duty Metal Garage 10x20 A1 Heavy Duty Metal Garage 10x20

Product Code [OUT OF STOCK MEL1020UTSG]

Our Price: £1,399.00 RRP: £1,499.00

Skylight Roof Panel

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A1 Heavy Duty Metal Garage 10x20

A1 Heavy Duty 'Melbourne' metal garage is made from quality high-tensile galvanised steel (G550 zinc/aluminium alloy). This high-tensile rating gives these buildings the strength to survive the harshest conditions. The A1 Heavy Duty Garage is fitted with wide double doors on a traditional gable, and a single personal entry door on the side for easy access. This model is available in two sizes: 10x15 and 10x20, both in a slate grey finish.


  • FREE delivery*
  • FREE 10-year manufacturer's warranty
  • Approximately 10ft wide x 20ft long
  • Tall 7ft apex
  • Wide double hinged doors
  • High-tensile galvanised steel construction
  • Slate grey with white trim
  • Virtually maintenance free
  • Optional skylight panels
  • Straightforward assembly
  • Professional installation available

Quality Construction

The A1 Heavy Duty 'Melbourne' Steel Garages are made to a very high standard by one of the worlds best metal shed manufacturers. These tall garages are made using quality high-tensile galvanised  steel (G550 zinc/aluminium alloy), painted slate grey, and are virtually maintenance free. The A1 Heavy Duty Steel Garage comes with a 10-year 'no rust perforation' warranty, they are designed to have lasting good looks, and won't crack or warp. Please note that this range of buildings doesn't come with a floor. 


The walls and roof are made from high-tensile steel, and are painted internally and externally, however they can be over-painted with a colour of your choice if required. The  A1 Heavy Duty 'Melbourne' Steel Garage requires no maintenance other than the occasional cleaning of the main building and oiling of moving parts. This will ensure that your building will last for many years. 

Doors and Locking System

The A1 Heavy Duty 'Melbourne' Steel Garage has hinged doors as standard. The handles are designed to accept a padlock (optional) when doors are closed.

Straight-forward Assembly

These A1 Heavy Duty 'Melbourne' Steel Garages are supplied in flat-pack form with comprehensive instructions. The assembly is uncomplicated (only basic tools are required) and no professional experience is necessary. Normally 2 people can complete the job in a few hours. A firm concrete base is essential to ensure a sound job. 

Professional Assembly Option

Whilst this is predominantly a DIY product, we can provide an installation service throughout most of the UK if required. We require clear access and a suitably prepared, firm, level base to be ready when the installers arrive.

Optional Extras

This building is supplied as a full kit, complete with all necessary fixings, fastenings etc., including concrete anchor fixings to make things easier when installing. 


IMPORTANT: Imperial sizes are approximate, and are shown only as a guide. Please refer to the metric dimensions below for more accurate sizes, or contact us prior to purchase if you have any specific requirements. 
A1 Sheds Colour Code *Ext. Size (mm) Height (mm) Footprint (mm) Double Door  Single Door  Weight
High Tensile Garage Main Trim EAN Width Length Ridge Eaves Width Length Width Height Width Height (kg)
10x15 Dark Grey White 5055280406603 3050 4570 2100 1800 3000 4500 2300 1800 750 1800 170
10x20 Dark Grey White 5055280406597 3050 6100 2100 1800 3000 6000 2300 1800 750 1800 185

Information shown above has been supplied by the manufacturer, and is as accurate as possible (errors and omissions excepted), however it is intended only as a guide. *We recommend making your base to the external dimension shown above. 

Please ensure that regular general maintenance is carried out on all moving parts.


All products are delivered sectional/flat-packed to kerbside unless stated otherwise. Deliveries are available for most of mainland England, Wales, Ireland and Scotland, however deliveries within the Grey Zone will be subject to a surcharge depending upon the area and the product weight. Please see the map below, or click here for more information.

The current delivery lead time shown is typical for Red Zones, however this is approximate and cannot be guaranteed. The lead time may be longer for outlying areas. Installation is available for most delivery areas, however this will extend the lead time to approximately 28 days.

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IMPORTANT: Imperial sizes shown in the description are approximate, and are provided by the manufacturer purely as a guide. Please refer to the metric dimensions for more accurate sizes, or contact us prior to purchase if you have any specific requirements.