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Steel Building Cost per Square Foot: Prices For Quonsen, I-Beam, C-Channel, Modular

Steel Building Cost Per SQFT

You would never spend money on something when you don’t know what you’re getting in return.

This exact principle applies to invest in and constructing a steel building.

You need to know what you are getting out of this purchase, and doing so requires knowing what determines the cost per square foot.

Otherwise, you may be walking straight into a sticky situation where you end up being overcharged without even knowing it.

It’s clear to see why a majority of people choose steel buildings.

They are durable, cost-effective and multi-functional with a wide range of uses including residential, industrial and agricultural.

As steel buildings are customizable, you have the freedom to choose a variety of sizes, materials and other add-ons such as insulation.

But what do they cost per square foot?

In this guide, you’ll find out all you need to know about a steel building’s actual cost per square foot. Continue reading to find out what the factors are that affect your final cost.

So let’s get started.

What’s in this guide?

Building Structure

Firstly, the design of your steel building is an important factor that dictates your final cost per square foot.

Steel buildings that are pre-made, such as Quonset Huts that have simple construction procedures, are lower-cost seeing as the material does not need to be further cut into specific shapes and sizes.

Thus, suppliers can pass the savings on to you.

Nonetheless, if you have a specific use for the steel building, then you should expect to spend a higher amount per square foot to account for the additional costs of building a more complex structure.

For example, agricultural and commercial buildings are relatively more expensive per square foot than a simpler structure like a garage.

How much are steel buildings per square foot?

Structure

Cost per SQFT

Quonset Hut Up to $12 per SQFT
I-Beam Up to $17 per SQFT
C-Channel Up to $18 per SQFT
Modular Up to $60 per SQFT

Quonset Hut

Quonset huts are traditionally one of the cheapest steel buildings that can be constructed, because they are often less complicated than other structures.

For example, a Quonset hut will usually be made from a single sheet of metal which is arched to make a roof and the walls of the building, with a concrete slab beneath.

This can help you save significantly on costs that you would have otherwise spend on excessive metals and windows or doors.

I-Beam & C-Channel

I-Beam and c-channel buildings are generally a similar price per square foot as well as a similar construction complexity.

Because, the difference between the two are typically flanges which are at the top and bottom of the beams, making the ‘c’ shape which gives c-channel buildings their name.

These types of buildings are an average cost thanks to the minimum materials used.

Modular

High quality modular buildings are one of the most complicated building styles because they are the closest to a traditional building in terms of the materials used, the fact that they have windows, doors and sometimes even insulation.

These structures can be easily expanded, and even added to in order to make larger buildings or things like student accommodation.

They can also be customised to match your specific needs, not just in functionality but also aesthetically in regards to extra materials and paint colours.

All of these elements might add to the overall price of your modular building, which is why it’s generally more expensive than other alternatives.

Size

Although larger steel buildings have a larger overall cost, they offer a lower cost per square foot. It is common practice to see suppliers offering higher discounts when your building size requirements go up.

This is done to attract and encourage more buyers to construct larger buildings under the premise that you can get more for less.

Material

The type of material you use is another element that determines the cost per square foot of your steel building. People tend to forget this, but there’s more than one type of steel for you to choose from.

For example, galvanised or stainless steel both provide the unique qualities that make them suited for different conditions and purposes.

The primary selling point of high steel typically offers higher quality, more cost-saving benefits and additional properties that contribute to the building’s overall structural integrity.

Steel Prices

At the very core of your final cost, are the current market prices of steel and the materials that it is made from: scrap metal and iron.

The commodity market, much like the better-known stock market, determines the prices of steel and its components through the buying and selling of the tradable commodities.

As a result, the prices of steel fluctuates with the market’s supply and demand forces, as well as external conditions such as natural disasters or economic sanctions that can cause sudden price shocks that have a drastic effect on the final cost per square foot of steel.

Additional Cost Factors

To top it off, you may see one last increase to the cost per square foot from extra features that improve and customise the building.

This includes accessories like hangar doors, windows, and insulation packages which quickly brings the cost up to $40 per square foot.

Suppliers generally give you price estimates that don’t take into account any additional costs that you will most likely need.

Seeing as your building is a long-term investment, I’m guessing it should the best possible with all the features that you want.

This is why it’s essential that you have a specific idea of what add-ons you want and be prepared for the actual cost per square foot of the steel building.

What Can I Do to Reduce the Cost per SQFT?

So what can you do about it?

At the end of the day, no one wants to be paying more than they should. Luckily, there are steps you can take to ensure that you don’t make this mistake.

Before you do anything, figure out your budget and know exactly what you want from your building. This allows you to have a clear idea of what you can afford regarding design, size, and additional features.

By doing so, you eliminate the possibilities of hidden costs and other unwanted surprises down the line.

If you want to reduce costs even further, you should consider opting for pre-made designs or standard steel lengths instead of specific ones which incur higher costs due to the additional work required to cut and shape the steel to your requirements.

Nevertheless, some things are worth the extra cost because of the long-term savings they offer.

Building Dimensions and Estimated Costs

Although the exact cost of your steel building will depend highly on the supplier you choose, as well as the materials that you need and where they are from, you can use the table below for a guide.

You should always compare your options before you make any decisions about your steel building, to make sure that you get the best deal for you and your business.

Building Dimensions

Square Foot

Estimated Cost

Approximate Price Per Square Foot

24×24 576 $5,800 $10
30×40 1,200 $9,100 $7.50
40×60 2,400 $17,500 $7.30
60×80 4,800 $29,500 $6
50×100 5,000 $31,000 $6.20
80×100 8,000 $47,000 $5.80
100×100 10,000 $64,000 $6.50
100×200 20,000 $121,500 $6

Conclusion

In conclusion, when you use high-quality steel and take additional measures to protect your building, such as insulation and fireproofing, this reduces your overall costs over time which makes them a worthwhile investment.

Not found what you’re looking for?

Get in touch with us today for friendly, personalised advice to make the right decision for you.

Or, take a look at the Green Building Elements guides here.

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