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How to choose the right size of shed 

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  Shed size banner  
  Measuring shed size  

Because shed sizes can be confusing, many people make the mistake of ordering one that turns out to be too small for their needs.

Knowing the true dimensions of the building is very important when it comes to choosing the right one for you, so don't rush into a decision without first doing some research.


Shed size is not floor size  


The shed size quoted to you may not be the floor area that is actually available inside. 

A shed described as 8’ x 6’ (2.44m x 1.83m), for instance, will probably give you a floor area of around 7'8" x 5'8" (2.35m x 1.78m). This is because the measurements refer to the exterior.

  Diagram showing shed floor area  
  Diagram showing overall shed measurements   The overall shed width and length measurements include the roof overhang in both directions, so it's best to ask for, or check yourself, the actual floor area of the shed before making a decision - you may find that you need to get the next size up.  

What size shed should you get?   

Obviously, the amount of spare space you have to work with will be a major deciding factor in the size of shed you choose. 

You also need to consider what you're going to keep in it. Sheds vary enormously, ranging from narrow sentry style models to substantial structures. 

  Small and large sheds  
  Wall pent shed  

Think about the shape as well. For instance, if you only have a small garden, or you just want some extra storage space close to the house, a wall shed with a pent roof could be a practical and low cost solution.

The slanting roof will allow you to place the shed right up against a wall or fence, and maximises the space available inside.  

  On the other hand, if you want to make your shed a feature of the garden - or have no option but to place it within sight of the house - you might want to get a classic apex overlap design that looks more traditional. This type also offers plenty of headroom.   Overlap apex shed in garden  
  Three different sizes of shed  

Sheds are sold by imperial measurements, with the most popular sizes being 6x47x5 and 8x6.

Smaller models are available measuring 3x5, 4x3, 5x3 and 6x3. We also stock medium-sized 4x65x7 and 7x7 sheds. Our largest sheds are a generous 10x6.

However, just to confuse things, all other measurements (for instance, interior floor space, wall thickness, framing width and exterior roof overhang) are usually given in metric form.

If you have a ride-on mower, lots of garden furniture or want to use the shed for DIY or other hobbies, aworkshop might be more suitable. These are available in 6x10, 8x10 and 8x12 sizes.

As a general rule (as long as there's enough room in your garden), if you're torn between two sizes of shed or workshop, go for the larger one - most people underestimate how much storage space they need.

  10x8 overlap workshop in garden  
  Items for shed laid out on floor  

Wonkee's top tip

The most accurate way to determine the shed size you need is to organise all the items you are planning to put in the shed on a flat surface. Arrange them so you can move around and measure the area they occupy. You might be surprised how much room they take up!

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