I build sheds for a living, and I see the good, the bad, and the downright flimsy. Wooden, metal, and plenty of plastic. One thing has become very clear over the years. A good plastic shed will often outlast a cheap wooden one by a long way.
Some plastic sheds fade, flex, and crack within a few years. Others stay solid for a decade or more. The difference is the brand.
That is why I have been paying close attention to who makes the best plastic sheds, which are the most durable plastic garden shed brands in the UK, and how the biggest names compare, including a real-world look at Keter vs Lifetime sheds.
This guide combines my hands-on installation experience with real customer review analysis to help you choose the best plastic shed for your garden.
If you are looking for the best plastic sheds UK homeowners can buy, you are in the right place.
Here are my top picks for the best plastic shed brands, based on real-world experience, durability, and overall value. I’ve also included current 2026 pricing ranges to give a fair, like-for-like comparison between the leading options.
Table of Contents
Keter
Keter has been manufacturing outdoor storage products for decades and is one of the biggest names in the plastic shed market. They focus heavily on modern manufacturing methods, durable resins, and low-maintenance designs, and it shows in the finished product.
How many plastic shed designs does Keter make?
Keter currently offers around 40–45 different shed models across various styles and sizes, including:
- Small sheds
- Medium sheds
- Large sheds
- Bike sheds, bin stores, and storage units
Their largest standard model is around 11 x 7.5ft, which is plenty big enough for serious garden storage.
Keter shed pricing (typical UK ranges)
- Small sheds (around 4x3ft): from £280
- Medium sheds: £450–£900
- Large sheds (up to 11×7.5ft): up to £1,500+
You can buy Keter sheds directly or through retailers such as eBay, B&Q, Amazon, Wickes, and Robert Dyas. Prices fluctuate, so it is always worth checking a few retailers and watching for seasonal offers.
Warranty
Most Keter sheds come with a 15-year manufacturer warranty, which is one of the longest in the plastic shed market.
Customer reviews
★★★★★
Keter is probably the most-reviewed plastic shed brand available. Across major retailers, average ratings typically sit around 4.5 out of 5 stars.
The most common negative feedback relates to assembly time and difficulty. Many customers find Keter sheds straightforward once started, but time-consuming and easier with two people.
My thoughts on Keter sheds
Keter is a market leader for a reason. They are not the cheapest plastic sheds, but the quality justifies the price. In my experience, the panels feel thicker, the fixings are better, and the finished shed feels more solid than most budget alternatives.
They also have some of the best-looking plastic sheds available. The wood-effect finishes are convincing and far nicer than plain shiny plastic. If someone asks me who makes the best plastic sheds overall, Keter is always one of the first brands I mention.
When reading reviews about assembly difficulty, it is worth considering that many problems are caused by the base rather than the shed itself. From my own experience building several Keter sheds, an uneven surface almost always leads to alignment issues.
I once had to install a Keter shed at the end of a customer’s drive where the ground was slightly out of level. As expected, the wall panels were harder to line up, the roof took longer to seat correctly, and the doors would not sit evenly at first. The shed did go up in the end, but it was far from straightforward.
On a solid, level base, the same models go together much more smoothly.
Lifetime
Lifetime is a US-based manufacturer with a global presence and over 1,500 employees worldwide. They started out in the early 1980s, producing basketball hoops and plastic furniture before moving into heavy-duty outdoor storage. Their sheds are designed with strength in mind and feel noticeably more robust than most standard plastic sheds.
Lifetime plastic shed range
Lifetime offers a wide selection of sheds in different colours, designs, and sizes.
- Smallest common size: around 7 x 4.5ft
- Largest models: up to a huge 20 x 8ft
These are some of the biggest plastic sheds available for domestic use.
Lifetime shed pricing (typical UK ranges)
- Medium sheds (around 7×4.5ft): from £1,300
- Large sheds: £2,000–£3,500
- Extra-large models (up to 20x8ft): up to £4,300
Available from retailers such as eBay, B&Q, Amazon, and Robert Dyas. Prices vary, so it is worth shopping around.
Warranty
Most Lifetime sheds come with a 10-year manufacturer warranty.
Customer reviews
★★★★★
Lifetime sheds are very well reviewed across major retailers, with average ratings around 4.4 out of 5 stars.
Positive reviews consistently highlight build quality, thickness of materials, and overall sturdiness.
Most negative feedback relates to delivery and packaging condition, rather than the sheds themselves. Assembly time is also mentioned, as these sheds are large and definitely a two-person job.
My thoughts on Lifetime plastic sheds
Lifetime sheds are built to American specifications and are designed to store larger garden machinery, including ride-on mowers. This shows in the construction.
They use steel-reinforced frames and roof trusses, allowing the sheds to support far more weight than typical plastic models. The wall panels and floors are thicker than most competing brands, which gives them a very solid feel once assembled.
I also like the tile-effect roof design, which looks smarter than standard flat plastic panels.
If your budget allows and you want one of the most durable plastic garden shed brands, Lifetime is hard to beat. These sheds are expensive, but they are built to take serious punishment and should last many years.
BillyOh
BillyOh is a well-known UK garden building manufacturer offering a huge range of sheds and outdoor structures. I’ve bought and built several of their products over the years and have consistently had positive experiences.
Their plastic shed range is smaller than some brands, but the solid plastic models are good quality for the money.
BillyOh plastic shed range
BillyOh focuses mainly on wooden buildings, so plastic options are limited compared to Keter or Lifetime.
- Around 9 plastic shed models
- Sizes from roughly 4x3ft up to 12x8ft
BillyOh shed pricing (typical UK ranges)
BillyOh targets the budget to mid-range plastic shed market.
- Small plastic sheds (4x3ft): from £319
- Larger models (up to 12x8ft Woodbridge): up to £1,349
They also sell some very cheap corrugated plastic sheds, but these are noticeably less robust.
Customer reviews
★★★★★
Overall ratings are dragged down by poorer reviews of the corrugated models. If you focus only on BillyOh’s tougher plastic ranges, average scores sit around 4.3 out of 5 stars, which is strong for this price bracket.
Common feedback:
- Corrugated sheds feel flimsy
- Solid plastic ranges receive far better durability comments
If choosing BillyOh, look mainly at:
- Woodbridge
- Duraplus
- Storeall
- Evermore
These consistently receive the best feedback.
My thoughts on BillyOh plastic sheds
I’m a fan of BillyOh as a company. Their customer service has been good in my experience, and their instructions are clear. I’ve found their sheds straightforward to assemble solo. I’ve purchased several wooden buildings from them in the past, and they haven’t let me down. My favourite is the BillyOh Kent Garden office, which is where I work all year round.
They offer a good balance between price and quality, especially on the solid plastic ranges. While they are not as heavy-duty as Lifetime or quite as refined as Keter, they are excellent value if you want a decent plastic shed that should last many years without paying premium prices.
Final roundup and comparison
By this point, you have probably realised there is no single “best plastic shed” for everyone. The right choice depends on budget, available space, what you plan to store, and how long you expect the shed to last.
That said, after building and working with sheds from all three brands below, clear differences do emerge.
Keter
Best all-round plastic shed brand
Keter sits in the sweet spot between quality, design, range, and price.
- Huge choice of sizes and styles
- Excellent wood-effect finishes
- Long 15-year warranties
- Strong customer feedback
If someone asks me who makes the best plastic sheds overall, Keter is usually my first answer. You pay slightly more than budget brands, but you get better materials, better fit, and better longevity.
Best for: Most homeowners, general storage, garden tools, bikes, and workshops.
Lifetime Products
Most durable plastic shed brand
Lifetime sheds feel different the moment you start building them.
- Thicker wall panels and floors
- Steel-reinforced frames and roof trusses
- Very large size options
They are expensive, but they are built like tanks. If you need to store ride-on mowers, heavy machinery, or want something that will cope with harsh weather, Lifetime is hard to beat.
Best for: Heavy-duty storage and maximum durability.
BillyOh
Best budget-friendly solid plastic sheds
BillyOh’s plastic range is smaller, but their solid panel models offer very good value.
- Competitive pricing
- Simple, DIY-friendly construction
- Good customer support
Just avoid the cheapest corrugated models if longevity matters.
Best for: Budget-conscious buyers who still want decent quality.
Quick Comparison Table
| Brand | Price Level | Durability | Design | Warranty | My Verdict |
|---|---|---|---|---|---|
| Keter | Mid–High | High | Excellent | 15 years | Best all-round |
| Lifetime | High | Very High | Good | 10 years | Toughest sheds |
| BillyOh | Low–Mid | Medium–High (solid models) | Good | Varies | Best budget option |
My Personal Buying Tips
- 1. Get the base right. Most “bad shed” reviews are actually bad base reviews. A solid, level concrete slab or paving base makes more difference than brand choice.
- 2. Go bigger than you think. Nearly everyone fills their shed faster than expected. If space allows, size up.
- 3. Avoid ultra-thin corrugated plastic. It flexes, rattles in wind, and has a shorter lifespan.
- 4. Expect assembly to take time. Even good sheds can take several hours. Two people make life much easier.
- 5. Think long-term, not just price. Spending a little more upfront often saves replacing a cheap shed later.
My Final Recommendation
If you want the safest choice for most gardens, buy a Keter.
If you want the toughest shed possible and have the budget, buy a Lifetime.
If you want solid value without spending a fortune, choose a BillyOh solid plastic model.
All three brands can be excellent when matched to the right job.
Why Buy a Plastic Shed?
I personally prefer wooden sheds, but plastic makes a lot of sense if you want low-maintenance, long-lasting storage. They need little to no upkeep once installed and cope well with year-round weather.
Before buying, here are the main pros and cons.
Pros
- Very low maintenance
- Resistant to rot, rust, and insects
- Weather-resistant and durable (good quality models)
- Lightweight and easy to assemble
- Wide range of sizes and styles
Cons
- Not as natural-looking as wood
- Cheaper models can feel flimsy
- Often cost more than basic wooden sheds
- Limited load capacity on some models
- Harder to repair or customise
Further Questions Regarding Plastic Sheds
How long do plastic sheds last?
Plastic sheds generally have a lifespan of between 8-15 years or more, thanks to their durable construction materials and inherent weather resistance. Most manufacturers provide a 10-year guarantee with their products.
Do plastic sheds suffer from condensation?
Yes, plastic sheds can suffer from condensation when the air outside is cooler than the air inside. Most plastic sheds do come with built-in ventilation which helps alleviate the differences in air temperature. If you have a plastic shed without vents then it’s a good idea to install some.
What are plastic sheds made of?
Most plastic sheds are made from high-density polyethene (HDPE) or PVC.
- HDPE is the better option. It is tough, impact-resistant, UV-stable, and designed to handle year-round outdoor use without cracking or warping.
- PVC is lighter and cheaper, but generally less durable and more prone to sun-related ageing.
Both materials are rot-proof, insect-resistant, and low maintenance, which is why plastic sheds are popular. If possible, choose a shed made from HDPE for the best longevity.
Looking for the perfect small garden shed? Check out my top recommendations for small garden sheds right here.
