An Essential Shed Buying Guide

Choosing a garden shed might seem simple, but once you consider insulation, planning permission, materials, and security, the decision can quickly feel overwhelming.

When it comes to garden buildings, the rule is straightforward: you get what you pay for. Your budget will determine the shed’s quality, size, and features. Investing in a high-quality, handcrafted garden shed will save you money on repairs in the long run and can add value to your property.

Drawing on more than 50 years of experience in building high-quality sheds, we’ve created this ultimate shed-buying guide to give you expert advice. From selecting the right size and style to choosing paint finishes and security features, this guide covers everything you need to know before buying a shed.

Here are Crane's Top Ten things to consider when buying a shed:

1. Size
2. Use
3. Style
4. Roof
5. Material & cladding
6. Windows & doors
7. Base
8. Positioning
9. Additional features
10. Maintenance

1. Size

What size shed do you need?

The right size shed is the one that gives you enough room for intended use. Start by measuring the space you have available and matching it to standard shed sizes. Most shed dimensions are listed in metres or feet, so it’s a good idea to write down both when measuring your area.

Small sheds are perfect for tools and bikes, medium sheds suit larger equipment or hobbies, and large sheds provide the flexibility for workshops, gyms, or offices. By choosing a size that balances your needs with your garden space, you’ll enjoy a shed that feels practical and future-proof.

As a guide:

• Small sheds – up to 1.8m x 2.4m (6ft x 8ft). Best for storing garden tools, bikes, bins, or a lawnmower.
  Compact enough for smaller gardens while still offering practical storage.
  
  
• Medium sheds – from 2.4m x 3.0m (8ft x 10ft) up to 3.0m x 4.2m (10ft x 14ft).
  Ideal if you need extra space for hobbies, larger equipment, or a dual-purpose shed that combines storage with a small workspace.
  
  
• Large sheds – 3.6m x 4.8m (12ft x 16ft) and above. Perfect for workshops, home gyms, offices, or extensive storage.
  These sizes provide flexibility and room to grow, making them a long-term investment.

The shed footprint, which is the area of ground occupied by the shed, will have some impact on your garden layout and usability. To visualise the space, mark out the dimensions with chalk paint or string, making sure you have enough clearance for doors, fences, and access points. 

Depending on the size and placement, you may also need to consider planning permission. Most garden buildings fall under permitted development, but it’s always best to check. You can use our planning permission calculator to be certain before buying.

It’s also important to factor in the interior dimensions. Wall thickness, cladding, and insulation can slightly reduce usable space inside, which matters when fitting furniture, workbenches, or gym equipment. For example, a shed that is 4 metres wide inside and insulated with 50mm insulation and 5mm tongue and groove cladding will lose 11cm overall, leaving 3.89m of internal width. While small, this difference can affect your setup.

Finally, don’t forget to consider the door swing and roof overhang. Outward-opening doors need room to clear fences, walls, or garden features, and the same applies to roof edges. Checking these details early ensures your shed remains accessible and practical once in place.

2. Use

What will your shed be used for?

You must have a clear idea of the primary function of the shed, whether for storage, workspace, leisure activities, or a combination of these. This is because the use of your shed will determine many of the decisions you make further along your buying journey.

For example, if you’re purchasing the shed for use as a workshop and tool storage, you’ll want complete peace of mind with a security pack and enough room to work comfortably. Alternatively, if you’re using the shed to store painting and decorating supplies or garden tools, you won’t necessarily need additional security but you may want insulation to avoid any expensive water-based paints spoiling. In both of these scenarios, natural light and windows are not always essential, so choosing a windowless design might suit you better.

How much storage do you need?

The predominant use of a garden shed is for the storage of supplies and belongings that homeowners don’t have room for in their house, or things that are generally used outside such as gardening equipment and furniture.

When assessing your storage requirements, you should take into account what you already have that needs storing, plus anything you’re likely to add in the future. For example, if you’re planning on starting a family or growing your existing one, you may need space for things like toys and other essentials. Alternatively, if you’re thinking of taking up a new hobby yourself, the shed can become a valuable asset for the safe storage of everything from golf clubs to skis and snowboards. Factoring in the future to your decision-making will allow the shed to be a ‘future-proof’ investment with a longer lifespan.

Future needs and considerations

As well as storage, sheds are great spaces to enjoy hobbies, recreational activities and even remote working. You could choose to completely insulate your shed and add things like electricity and heating to transform it into a versatile garden office or an impressive home gym. Popular shed ideas also include turning the space into a man cave, art studio, pool house, or game room, all of which can be personalised to your lifestyle. You could also kit it out with custom-built workbenches and racking for your projects and tools.

Just like above, you should take future needs into account when making decisions about the usage of your shed. It will pay off in the long run for you to invest in something bigger and better equipped now, than having to purchase something else later down the line.

3. Style

What are the different styles of sheds?

The style of your shed is largely about its overall look and how it complements your garden. Some people prefer a traditional style, which blends seamlessly into classic outdoor spaces, while others opt for a modern look with cleaner lines and a more contemporary feel. Your choice of colour and finishes will have a big influence here, as well as the form of the building itself. For example, an apex shed is often seen as more traditional in appearance, while a pent shed offers a sleeker, more modern style.

Personalisation and finishes

Personalising your shed helps it feel like a true extension of your home and garden. Colour plays a key role in this, and at Crane we offer a wide variety of stain and paint finishes across our sheds, including the Farrow & Ball palette. Accessories and landscaping can also transform the look — whether you want your shed to blend into the garden or stand out as a feature building. By considering these design choices, you can create a shed that reflects your personality while also adding value to your property.

4. Roof

Your shed roof is more than just protection against the elements — its shape also affects usability. Apex roofs feature a traditional pitched design that creates extra internal height, making them practical for storage or a more spacious feel. Pent roofs, by contrast, have a single slope that gives a lower, more compact profile, making them easier to position against fences or walls while offering a more modern appearance.

Roofing materials

The material you choose for your shed roof will influence both its durability and its appearance. At Crane Garden Buildings, our standard option is Heavy Duty Felt, a 35kg green mineralised felt that is non-rip, heat-sealed with a propane torch, and highly weather-resistant. For a more natural look, we offer Cedar Shingle Tiles, expertly laid by our craftsmen from premium Canadian Blue Label cedar; these last 25–35 years and gradually silver with age. Alternatively, Slate-Effect Tiles (available in grey or terracotta) combine traditional slate appearance with modern performance, offering resistance to UV rays, wind, hail, and fire, with a 40-year limited warranty. For our National Trust collection, we also offer corrugated roofing, giving an authentic, heritage-inspired finish.

Read our guide Pent or Apex - Which Roof is Right for Your Garden Shed for more information on roof styles.

5. Materials & cladding

What are the different shed materials?

Timber sheds

Timber sheds have a natural aesthetic that blends seamlessly and attractively into garden landscapes. However, be aware of any sheds made from low-quality, fast-growing timber. At Crane Garden Buildings, we only use PEFC certified, slow-growing pine sourced from Northern Sweden. Each piece is selected especially for its strong, knot-free composition.

All of our garden buildings are also treated with subtle preservatives. This lets the natural quality of the timber shine through, whilst warding off damage from woodworm and fungi. While our paint and stain finishes provide exceptional longevity, a lot of timber sheds will require some annual maintenance.

Metal sheds*

Metal sheds are a durable choice and are resistant to weather conditions, have low-maintenance requirements and are often more affordable. However, you’ll need to consider how they affect the overall aesthetic and look of your garden, as they are not the most attractive option.

Plastic sheds*

Plastic sheds are lightweight in construction, weather-resistant and relatively low maintenance. However, they aren’t the most durable option and can often discolour and become brittle over time. Keep in mind that a plastic shed may also need anchoring into the ground, too.

Composite sheds*

Supposedly more durable than timber or plastic, a composite shed offers low maintenance requirements, a modern appearance, and total resistance to rot or insect damage. However, they are limited in terms of design and colour options, which can be a dealbreaker for some.

*Crane Garden Buildings has specialised in the construction of timber sheds for more than 50 years, favouring wood for its aesthetics, durability and managed sustainability.

Cladding options

The most common cladding options for timber garden sheds are shiplap and weatherboard. Both types provide protective coverings for buildings and the choice between them ultimately comes down to aesthetic preferences.

Weatherboard has a more traditional and timeless appearance with a small overlap, while shiplap cladding is a ‘tongue and groove’ style that is often chosen for more contemporary spaces.

6. Windows & doors

Windows

When considering door and window placement, you’ll need to refer back to the shed’s intended use and determine what will work best for you. 

For example, if you’re purchasing a potting shed, you’ll want as much natural light as possible and so will need windows over your workbench. Windows are also essential for ventilation, which is important if you’re working with any strong fumes in your shed.

With a Crane shed, you can also choose how many opening windows you want, as well as their placement. Positioning windows on different walls will help create a through-breeze, improving ventilation and keeping the space more comfortable to work in. For year-round comfort and improved insulation, double glazing is also available.

You should always check that specially toughened glass is used in your windows, as ordinary horticultural glass breaks easily. Not only can replacements be costly, but it is also a hazard, especially if you have small children who play in the garden. 

Doors

Doors are just as important to think about. You’ll need to decide between single or double doors, depending on how you plan to use the shed. If you’re storing large equipment such as a mower, golf clubs, or bikes, double doors make access easier. They also provide extra ventilation when both doors are open, which can be useful in the summer or if you’re working on projects inside.

7. Base

Shed base

It’s very important that you have a flat, level base for your timber garden building. If your shed is erected on uneven or soft ground it will settle over time and cause the timber to warp creating issues with doors and windows coming out of alignment and putting excess stress on the structure, not to mention further issues with damp and rot. This would significantly shorten the potential lifetime of a structure that should otherwise endure for 30+ years.

Visit our concrete base laying guide for more information.

Flooring options

The most common flooring options for garden sheds include wood, concrete, and plastic. You’ll want to weigh up which one works best for your intended use. If you’re going to use the shed as a workshop where heavy, sharp tools are being used, plastic probably isn’t going to be durable enough.

If your shed is going to be used as a gym, perhaps you want something with the maximum moisture resistance and insulative qualities. The most suitable choice will come down to the intended usage of the shed.

8. Positioning

Choosing the right shed position in a garden is just as important as selecting the right size or style. Think carefully about where to position a shed so that it is both practical and visually pleasing. You’ll want easy access from the house, enough natural light if you plan to use it for work or hobbies, and a spot that doesn’t block key views or pathways. Positioning also affects how secure, private, and weather-protected your shed will be.

Planning permission

Depending on the size of your shed and where you live, you may need to check local planning regulations for shed size and placement restrictions, ensuring compliance with local building codes and guidelines. In the vast majority of cases, garden buildings are considered ‘permitted developments’ which means you won’t need to obtain planning permission, but it is always better to check.

Read our guide on what to consider when positioning your garden shed for more information.

9. Additional features

Security features

Security features such as locks, hinges, and window bars are essential to protect any valuables stored in the shed, especially for sheds located in less secure and exposed areas. If you’re planning to use your shed as a bike shed or for bike storage, you may also want to upgrade to heavy duty locks and fittings, or add door security measures such as reinforced hinges and security screws. For further protection, consider installing security lights around the building. Read our guide on how to secure your garden shed for further information.

Insulation options

You’ll want to insulate your shed if you’re using it for work or as a frequent recreational space to ensure that it is comfortable all year round. Other factors to consider when thinking about insulation include what you’ll be storing in the shed, and if it requires a certain environment.

Electrical packs

Electrical packs are another useful addition to consider, as they allow you to bring power into your shed. This can be particularly valuable if you want to support security cameras and security lights, or simply to plug in everyday electricals. They also provide the flexibility to install heaters, air conditioners or other appliances, making your shed a more practical and versatile space throughout the year.

10. Maintenance

Shed maintenance

To prolong the shed’s lifespan and take care of its aesthetic appeal, you should carry out occasional maintenance such as inspection, cleaning, tightening any loose components, and weeding the ground around it. Regular checks also help with pest control, preventing issues such as insects or rodents causing damage. 

If you do notice signs of wear, don’t wait! Carry out minor fixes quickly to repair shed panels, doors, or windows before small problems develop into larger ones. Your Crane shed is covered by a 10-year guarantee, so you’re covered for any design and manufacturing faults, any compromise to the structural integrity of the building and timber decay (fungal rot). Should such a fault develop, our maintenance team will repair or replace any faulty component and arrange for remedial action to repair your building.

Frequently Asked Questions

I'm unsure about the size of shed I need. How can I make a more informed decision?
Consider making a list of all the items you intend to store in the shed, including their dimensions. This will give you a better idea of the internal space required. Also, think about future storage needs and potential uses for the shed such as any extra family members that may come along, or additional hobby equipment.

What are some factors to consider when choosing a shed style?
Think about the available space, the desired headroom, and the overall aesthetic you want to achieve. Apex sheds offer ample headroom and a traditional look, while pent sheds are space-saving and modern. Alternatively - if it turns out you’re after a different garden building entirely, you might consider a Garden Studio or Summerhouse. 

Which shed material is best for my needs?
Timber sheds offer a natural aesthetic and blend well with garden landscapes. Metal sheds are durable and low maintenance. Plastic sheds are lightweight and weather-resistant. Composite sheds combine durability, low maintenance, and a modern appearance. However, each has their trade-off. All materials will require some form of maintenance, so you may as well base your decision on your budget and which look you prefer. 

What security features should I consider for my shed?
Choose a shed with strong, secure locks and hinges. Consider adding window grilles or security bars for additional protection. If storing valuable items, consider installing an alarm system or motion-activated lights. At Crane, we offer a built-in, bespoke security pack. 

How can I maintain my shed to prolong its lifespan?
Regularly clean the shed's exterior to remove dirt and debris. Inspect for any signs of damage, such as cracks or leaks, and repair them promptly. Apply a fresh coat of paint or sealant every few years to protect the shed from weather damage.

How do I know if a shed is good value for money?
A shed is good value if it meets your needs and performs well for many years without costly repairs. It needs to balance quality, longevity, and features it offers, with your budget. 
Flat-pack sheds may be cheaper upfront, but made-to-order options usually provide better craftsmanship, durability, and a longer lifespan. Pay special attention to the quality of timber. Slow-grown wood will outlast fast-grown alternatives.  Also look for solid construction details such as toughened glass, heavy duty felt roofing, and secure door fittings. Protective finishes like wood stains or factory paint will help prevent wood rot and reduce maintenance.