This article is the latest in our comparison series – Purlin Farm Sheds Versus Structural Steel Farm Sheds.
Other articles in this series include:
- UB Rafter Sheds Versus Open Web Truss Sheds
- Shearing Shed Modules Versus Custom Fit Outs
- Curved Roof Shed Versus Straight Gable Roof
If you are researching options for farm shed kits, you will likely have come across the two main shed frame construction options.
1. Purlin framed sheds
2. Structural steel framed sheds
These two options are vastly different constructions and are suited to different applications.
Many of these differences are obvious and you are likely familiar with these.
For example, there is an obvious visual difference in the strength of the materials used.
This material difference impacts the weight, longevity and price of the frame.
In fact, purlin sheds are about six times lighter than a structural steel shed!
We also discuss factors such as the ease of installation, structural integrity and corrosion protection options available.
First up in our comparison of Purlin Farm Sheds Versus Structural Steel Farm Sheds, we provide a definition of a purlin shed.
What Is A Purlin Farm Shed?
What makes a purlin shed a purlin shed?
A purlin-framed farm shed, as the name suggests, is a shed frame manufactured out of purlins.
Purlins are roll formed from a flat sheet of steel into either a c-shape purlin or a z-shape purlin.
Advantages Of A Purlin Farm Shed
The two main advantages of purlin sheds are:
- They are strong enough to support a span of up to 12 metres wide.
- They are a cost-effective frame option for small sheds.
Disadvantages Of A Purlin Farm Shed
The main disadvantages of a purlin-framed farm shed are:
- Not suitable for farm sheds 12 metres wide or bigger
- Six times lighter than a structural steel shed and can be a risk in windy areas.
- Typically pre-galvanised or painted rather than hot-dip galvanized
- High maintenance costs.
- Can be time-consuming to install.
When Is A Purlin Farm Shed A Good Option?
A purlin shed is really a better option for a backyard shed rather than a farm shed.
Having said that, a purlin farm shed could still have its uses.
If you require a shed that is smaller than 12 metres wide, then a purlin shed can be a practical and cost-effective option.
For example, you could use a purlin farm shed for horse run-in shelters, dog kennels or a bird aviary,
So, that’s a back-to-basics overview of purlin farm sheds! Next up we do the same for structural steel farm sheds before we compare the two options.
What Is A Structural Steel Farm Shed?
A structural steel farm shed frame is manufactured from structural steel.
When it comes to an Action shed, this includes heavy-duty UB columns and an open web truss construction. The frame is manufactured and then fully hot dip galvanized.
Advantages Of A Structural Steel Farm Shed
The main advantages of a structural steel farm shed frame include:
- A wide range of sizes available, starting from 12 metres wide through to 60 metres clear span – and suited to a wide range of applications.
- Heavy-duty, long-lasting and low maintenance
- Can be hot dip galvanized for the ultimate corrosion protection (all Action farm sheds are hot dip galvanized as a standard inclusion)
- Installation is very straightforward.
Disadvantages Of A Structural Steel Farm Shed
Now, we might be biased but there are no real disadvantages of a structural steel farm shed.
However, if you only require a small farm shed then a structural steel frame will be cost-prohibitive.
When Is A Structural Steel Farm Shed A Good Option?
A structural steel farm shed can be effectively used for such a wide range of applications, it would be a lot quicker to explain when it isn’t a good fit!
Our range of structural steel farm sheds include:
- Hay sheds
- Grain sheds
- Fertiliser sheds
- Chemical sheds
- Yard covers
- Dairy barns
- Shearing sheds
So, how do purlin farm sheds and structural steel farm sheds compare?
What is the verdict?
The Verdict – Purlin Farm Sheds Versus Structural Steel Farm Sheds – Which Is Best?
Both purlin sheds and structural steel farm sheds have their advantages and uses.
However, it is actually difficult to compare the two options – we aren’t comparing apples with apples, or like products with like products.
Structural steel farm sheds are the clear winner in terms of longevity and structural integrity.
Purlin frame sheds are best reserved for garden sheds, caravan storage or carports – or any shed with a span around 10 metres wide or smaller.
So, that’s a wrap on Purlin Farm Sheds Versus Structural Steel Farm Sheds!
Additional Resources
We have collated some additional articles and information that might help you with your project planning.
- What Size Farm Sheds Do You Build?
- What Are Standard Spans For Farm Sheds?
- Farm Shed Guide (PDF Download)
- What Is Hot Dip Galvanizing (Video)
For more articles like this, browse the Learning Hub.
Or to discuss your structural steel farm shed project call us on 1800 687 888 – we would love to hear from you!
