There are many kinds of materials you can use to build your shed. Timber, resin, and aluminium are all materials to choose from. However, at Sheds Direct, we think the best option for durable, long-term use is steel sheds. We focus exclusively on steel sheds because of their versatility and durability. But how long do steel sheds last? And what factors can affect their lifespan? We cover a few things to keep in mind when choosing the material for your shed.
As the bones of your shed, the framing is extremely important. If the framing falls apart, so will the entire shed. It’s essential to choose framing that will last.
Wood-framed sheds are prone to rotting, especially if the wood isn’t treated properly. Insects can also get into wood and make nests directly in the material, which can significantly reduce the lifespan of the framing if left untreated.

Steel framing has no risk of rot and has extreme durability against wind. A well-built steel-framed shed isn’t going anywhere except in the most extreme conditions. Steel doesn’t bend easily and is also resistant to heat beyond the temperatures we ever see in NZ. Water can potentially cause rust over time, but with the right protective coatings and maintenance, rust is virtually eliminated, ensuring your shed remains strong and visually appealing for years to come.
All of these advantages mean that the steel framing of a well-built shed can last upwards of 50 years.
While the framing is the most essential component of the shed, walls and roof cladding also need to be long-lasting. One benefit of using steel is that components can be cut precisely for a perfect fit. They can also be built in any weather without any changes from warping. Steel also provides superior protection from the elements so wind and water won’t leak through.
Steel keeps up rather well with minimal maintenance as well. This helps them to last a long time without having to do regular upkeep. Occasional hosing down and cleaning out gutters (when installed) is about all they need to last for many years.
One reason steel sheds last so long is because they are more secure than other types of sheds. Breaking through the walls is challenging for both weather and intruders so your contents will stay safe.
Fire isn’t an issue for steel sheds either. Steel has a very high melting point and is non-combustible, so it won’t catch fire from external sources. The toughness of steel also means it can withstand high-impact forces like debris from windstorms without taking critical damage.
Because steel lasts long and works in so many different environments, most shed suppliers offer a long-lasting warranty for steel framing. It’s not uncommon to have a warranty of 25 or 30 years for the framing.
At Sheds Direct, we’re confident in the durability of our steel sheds. That’s why we provide a 50-year structural warranty on all steel framing. Plus, every Colorsteel® shed comes with up to a 15-year finish warranty, giving you peace of mind that your shed will not only stand the test of time but continue to look great.
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