From £2,536
A complete building service based in the Isle of Purbeck, Dorset. Campbell Clarke Construction are an established, experienced and trusted building...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in BH20 it ranges from £2,536 (Campbell Clarke Construction LTD based in BH20) to £2,536 (Campbell Clarke Construction LTD based in BH20).
Comparing extension builders estimates for fitting an RSJ gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get rates and quotes to install an RSJ in BH20 by posting a job with HaMuch and we will send it to extension builders in BH20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Poole | £38 | £250 |
| Install An RSJ near Bournemouth | £38 | £257 |
| Install An RSJ near Dorchester | £30 | £230 |
| Install An RSJ near Weymouth | £33 | £260 |
| Install An RSJ near Christchurch | £36 | £251 |
| Install An RSJ near New Forest | £32 | £245 |
| Install An RSJ near Yeovil | £34 | £294 |
| Install An RSJ near Salisbury | £35 | £247 |
| Install An RSJ near Totton | £34 | £243 |
| Install An RSJ near South Somerset | £62 | £270 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,836

Two storey extension - £88,504

Build a timber frame extension - £26,336

Build a swimming pool - £81,336

Single storey extension - £61,720

Side return extension - £45,280

Install an RSJ - £2,536

Outbuilding - £10,336

Build a Mansard loft conversion - £52,336

Loft conversion - £36,900

Build a kitchen extension - £42,336

Hip to gable loft conversion - £42,336

Granny annexe - £87,336

Garden office - £10,336

Convert a Garage - £16,336

Garage - £18,836

Build a flat roof extension - £22,336

Build a dormer loft conversion - £42,336

Concrete foundations - £6,586

Convert a bungalow loft - £29,336

Convert a basement - £41,280