Steel Building Prices
The price of steel buildings is dependent on the weight and size of each steel section, the shape of the beam (for example channel beams, eye beams or castellated beams may be used), the complexity of the structure (there may be a need for additional steelwork for localised support) and the location of the building. Prices for London will be higher than in other regional areas.
A steel frame building without cladding will cost approximately 35 per square metre. A steel framed building that is galvanised, rather than painted, will add up to 20 percent to the original cost, making it around 42 per square metre. For a single skin building with a corrugated cladding system and insulated lining, it will cost approximately 30 to 40 per square metre, or up to 200 per square metre for materials such as Alucobond.
In terms of structural steelwork unit rates per tonne, a bespoke industrial building, with little design repetition, will cost around 1800 per tonne of steel. This price is based on constructions in London, but regional prices for this type of building are around 1700 per tonne. A distribution or storage building (large span / trusses) will cost around 1550 per tonne in London, or regionally around 1400. Retail buildings or office buildings are priced at around 2000 per tonne in London, as they are more complex constructions, or regionally, around 1800 per tonne.
Unit cost per tonne is the leading benchmark cost unit for structural steelwork. The cost includes the steel along with the determining elements of connection design (this is the main frame design made by a structural engineer), detail drawing, fabrication, testing, treatment and delivery, offloading and erection. The overall frame cost of a building is calculated by estimated tonnage against the aforementioned features. The relative costs of the above elements will obviously vary from project to project. As a rough guide, the tonnage rate for a typical medium sized project could be divided into materials (30 percent), engineering (5 percent), fabrication (35 percent), priming (8 percent), delivery (2 percent) and erection (20 percent).
The prices below are for buildings constructed out of solid cold rolled high tensile steel and using portal frame technology, which ensures that the building is both strong and durable. You can often choose whether buildings are enclosed or open or a mixture of both. These prices include gutters, downpipes and ridge, eaves and base foam filler. There are also options for skylights with such buildings. Delivery may also cost up to 200, unless delivery can be made on an articulated lorry.
A single steel garage, with single skin steel cladding and anti-condensation coating to the roof and rainwater goods will cost around 2499. This building is 5m long and 2.5m wide, with a single rollershutter door that is 2.29m wide and 2.4m high. A double steel garage which is 6m long and 6m wide with two rollershutters can be found for 3999. An open farm or storage shed, which is 15m wide by 4.5m long and 3m high, will cost around 5499. A triple garage or storage unit with three rollershutters and dimensions of 10m wide by 6m long and 4.5m high will cost around 11599. A warehouse unit with two rollershutters, that is 9m wide by 15m long and 5m high, will cost 18999.
Steel buildings that are 3m by 4.8m are priced at around 3170, a 3m by 6m building is around 3459, a 3.6m by 5.4m building is 3766, a 4.2m by 6m building is 4063 and a 3.6m by 9m building is 4712. Also, a 4.82m by 4.8m building is priced at around 3876, a 4.8m by 6m building is around 4155, a 5.4m by 6.6m building is 4852, a 6m by 9m building is 6040 and a 9m by 12m building is approximately 9642.
A pricing guide for a garage workshop with a 2.4m by 2m roller door is, a 6m by 6m garage will cost around 5105, a 6m by 10m garage is around 6594, 8m by 12m is 9059, 10m by 14m is 12006 and 10m by 20m is 14769. A two bay garage with store and two roller doors that are 2.49m by 2.14m will cost around 6957 for a 5.4m by 9m construction. A 6m by 10m building is around 7205, an 8m by 12m building is 9411 and an 8m by 18m building is 12363.
The versatility of steel buildings with one open side means that they can be used as a barn, garage or store. Buildings with an eaves height of 2.4m cost around 3466 for a construction 3.6m by 7.2m with two bays. A 4.8m by 9m building with three bays will cost 4537, a 6m by 10.8m building will cost 6527, a 9m by 18m building is around 11975, and a 9m by 18m building with an eaves height of 3m is around 12549.
