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Steel Portal Frame Building Costs

Portal Frame Buildings

Steel buildings are an excellent choice for businesses in a range of sectors thanks to the durability, adaptability and cost-effectiveness offered.

Steel portal frame buildings are among the most popular of these buildings. In fact, around 50% of UK steel construction work incorporates portal frames. A portal frame building offers a number of advantages, in terms of both construction and use; understanding these benefits - compared to your own requirements and specifications - is the best way to decide on what sort of steel construction you may need.

A number of factors and features can be attributed to the popularity of portal frames - to learn more, continue reading this page. Otherwise, if you want to compare quotes and find the best prices, simply complete the form at the top of this page.

Let Approved Index help you find the best Portal Frame Building Supplier for your business.


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Steel Portal Frame Building Costs

As with other steel building prices, the cost of your portal frame building will depend heavily on a number of factors. With this construction, you are not only paying for the materials, but also for the construction and assembly processes too.

Because design can vary from building to building, it is difficult to estimate price with absolute certainty; however, it is possible to use previous sales information alongside average costs to estimate what kind of price you might encounter. For the most accurate cost however, you should complete to the form at the top of this page in order to speak to one of Approved Index’s top quality suppliers.

A 3m by 4.8m steel building costs about £3,100 and a 4.8m by 6m unit exceeds £4,000. Bigger structures can cost from £6,000 (6m by 9m) to more than £9,000 (9m by 12m).

DimensionsCost
3m by 4.8m£3,000 - £3,200
4.8m by 6m£4,000 - £4,500
6m by 9m£5,800 - £6,400
9m by 12m£8,500 - £9,500

These prices are approximate, based on average costs. For an accurate estimate based on your requirements, speak to a supplier.

For steel storage units, quotes usually start just below £2,500 for a 5m by 2.5m building with a single roller-shutter door. A 6m by 6m unit with two doors is almost £4,000, while a three-door unit measuring 6m by 10m reaches £11,000. If you are interested in a warehouse, you will have to pay close to £19,000 for a 15m by 9m unit that is 5m high.

Building TypeDimensionsRoller Door?Price
Storage Unit5m by 2.5mYes - 1£2,400 - £2,600
Storage Unit6m by 6mYes - 2£3,800 - £4,200
Storage Unit6m by 10mYes - 3£10,500 - £11,500
Warehouse15m by 9mYes - As needed£18,000 - £20,000

These prices are approximate, based on average costs. For an accurate estimate based on your requirements, speak to a supplier.


For information on farm building options, visit our agricultural building prices page.


Rates for a barn or store with one open side also take into account the height of the eaves and number of bays. A 3.6m by 7.2m unit with two bays and 2.4m high eaves has an approximate cost of £3,500. Larger buildings with three bays are sold for £4,500 (4.8m by 9m), £6,500 (6m by 10.8m) and £12,000 (9m by 18m). An eaves height of 3m pushes up the quote of a 9m by 18m unit by £1,500.

Building TypeDimensionsEavesPrice
Barn3.6m by 7.2m2.4m£3,300 - £3,700
Barn4.8m by 9m2.4m£4,300 - £4,700
Barn6m by 10.8m2.4m£6,300 - £6,700
Barn9m by 18m2.4m£11,500 - £12,500
Barn9m by 18m3m£12,000 -£14,000

These prices are approximate, based on average costs. For an accurate estimate based on your requirements, speak to a supplier.

As mentioned, the prices on this page are not always going to be completely accurate. For the best estimate or most accurate quote, you should complete the form at the top of this page.

By using your exact specifications, Approved Index can match you up with the most suitable suppliers that can offer you the best quotes.


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What is a Portal Frame Building?

A portal frame building has a uniform cross-section consisting of two walls separated by a pitched or barrel roof. These side walls bear the full load of the roof meaning that the building can be of any length whatsoever without jeopardising structural integrity.

Buildings with a surprisingly large clear span can be built from this design, though when the roof reaches a certain width it may need to be propped up with internal columns or trusses.

Doors, windows and skylights can be added almost anywhere and the structure is also capable of supporting mezzanines and suspended ceilings of a variety of materials. Cladding can consist of steel or other metal, brickwork, blockwork, timber or even glass to create interesting looking buildings. Extra architectural features like porticos or Dutch gables can also be added to the basic design.

With portal frame construction, all building components are produced in a factory according to design specifications. These parts are then delivered to the assembly site, where they can be quickly and easily erected.

One of the key benefits offered by portal frame buildings comes in the ease of assembly. Most of the work - in regards to design, testing and finishing - is done off-site, meaning that you do not have to allow construction time to impact on your usual day-to-day activities. Certainly, if you were using a more traditional material, like brick, then you could expect to encounter a much more extensive period of disruption.

As well as fabrication and erection, portal frame building suppliers can also manage the design, planning, testing and finishing processes. With this range of services available, your business can cut back on material, design and labour costs - although you are often able to manage some of these processes internally, if you would prefer.

Portal frame buildings commonly use steel, steel-reinforced precast concrete, or a laminated timber like glulam. Structurally, portal frames are characterised by moment-resistant connections between the columns and rafters. These strong and rigid joints help to reduce bending moment in the beam, so that the frame functions as single structural unit.

Portal frame structures are available in clear-span and propped varieties; in clear-span constructions, which suit buildings of any length, the side columns, joining beams and rafters support the roof. Ideal for wider buildings, propped constructions incorporate trusses to hold up heavier roofs.

Portal Frame Building Benefits

Some of the key benefits of portal frame buildings can be found below:

  • Durable. Unlike some construction materials, with a portal frame building you can feel safe knowing that the steel material can stand up to the elements.
  • Adaptable. Thanks to the building and design process, portal frame buildings can be designed and constructed to match a variety of functions.
  • Cost-effective. Because most of the construction process for these buildings takes place off-site, portal frame buildings reduce costs in man-hours and also costs that may be occur during a disruptive period of construction.

If you are interested in portal frame buildings, you may also want to find out more about prefabricated steel buildings.


Does Your Business Need a Portal Frame Building?

Whether or not your business will need a portal frame building will depend primarily on your requirements. However, there are various building types that are particularly well suited to this construction style:

  • A warehouse-style store with a large amount of floor space.
  • An office building with brick cladding or a glass façade, plus skylights.
  • A manufacturing or process unit or depot, with an internal office - for example, a mezzanine, suspended ceiling and stairs.
  • A new barn, mill storage building, cowshed, grain store or garden centre.

As mentioned already, with any of these buildings types you are able to customise the design and build processes to better suit your business’s requirements.

Let Approved Index help you find a Portal Frame Building Supplier today.


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Obtaining Portal Frame Buildings

Hiring your own architect is rarely necessary when obtaining a portal frame building – suppliers will be able to provide a range of suitable designs capable of taking on modifications to suit your needs.

Assistance is usually available for obtaining planning permission, though a supplier familiar with your local planning regulations will be in a better position to help with this.

Fabrication of your building takes place at the supplier’s factory while the groundwork is prepared. The building is then transported to site in sections and assembled and erected by a professional construction team (unless you’ve elected to manage construction yourself, in which case delivery is arranged to suit your schedule).

Get several quotes from different suppliers in order to make sure you’ve explored all the options and are getting as good a price as possible. Different suppliers will also have different turnaround times – some may be able to fabricate and install your building quicker than others.

Compare Steel Portal Frame Building Prices

Steel portal frame buildings are amongst the easiest, most efficient solutions for a range of building projects. Sturdy, cost-effective and versatile, they are perfect for any store, office, warehouse or barn that you need to set up.

Every business needs to ensure that they are getting the best prices - that includes with construction. The easiest way to find the best prices is by comparing quotes with Approved Index. We only work with top-quality, vetted steel building providers and so can guarantee both service and product.

Our quote comparison service is free and without obligation.To get quotes from up to 4 suppliers and to save up to 40% today, simply complete the form at the top of this page.

Get the best Portal Frame Construction for your business with Approved Index.


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