
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in TR2 it ranges from £0 ( based in 0) to £0 ( based in 0).
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 TR2 by posting a job with HaMuch and we will send it to extension builders in TR2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Truro | £31 | £206 |
| Install An RSJ near Falmouth | £33 | £220 |
| Install An RSJ near St Austell | £38 | £245 |
| Install An RSJ near Newquay | £32 | £230 |
| Install An RSJ near Camborne | £28 | £196 |
| Install An RSJ near St Ives, Cornwall | £27 | £188 |
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 - £15,500

Two storey extension - £85,000

Build a timber frame extension - £24,000

Build a swimming pool - £79,000

Single storey extension - £15,000

Side return extension - £19,000

Install an RSJ - £200

Outbuilding - £8,000

Build a Mansard loft conversion - £50,000

Loft conversion - £15,000

Build a kitchen extension - £40,000

Hip to gable loft conversion - £40,000

Granny annexe - £85,000

Garden office - £8,000

Convert a Garage - £14,000

Garage - £16,500

Build a flat roof extension - £20,000

Build a dormer loft conversion - £40,000

Concrete foundations - £4,250

Convert a bungalow loft - £27,000

Convert a basement - £15,000