From £1,800
TIMBER PRODUCT CONSTRUCTION is an established extension buildering business in EX20. We come highly recommended and provide competitive quotes for ...
From £1,880
Justin Ware
We are a small team of Builders working out of Okehampton. We take on all types of projects small and large. From bathrooms to kitchens, plastering...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in EX20 it ranges from £1,800 (TIMBER PRODUCT CONSTRUCTION based in EX20) to £1,880 (J.Ware Builder based in EX20).
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 EX20 by posting a job with HaMuch and we will send it to extension builders in EX20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Bideford | £22 | £174 |
| Install An RSJ near Teignbridge | £27 | £260 |
| Install An RSJ near Exeter | £27 | £221 |
| Install An RSJ near Barnstaple | £25 | £196 |
| Install An RSJ near Newton Abbot | £27 | £236 |
| Install An RSJ near Tiverton | £25 | £202 |
| Install An RSJ near Plymouth | £30 | £230 |
| Install An RSJ near Exmouth | £24 | £210 |
| Install An RSJ near Paignton | £27 | £222 |
| Install An RSJ near Torquay | £28 | £223 |
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 - £17,140

Two storey extension - £87,460

Build a timber frame extension - £25,640

Build a swimming pool - £80,640

Single storey extension - £47,800

Side return extension - £37,450

Install an RSJ - £1,840

Outbuilding - £9,640

Build a Mansard loft conversion - £51,640

Loft conversion - £30,375

Build a kitchen extension - £41,640

Hip to gable loft conversion - £41,640

Granny annexe - £86,640

Garden office - £9,640

Convert a Garage - £15,640

Garage - £18,140

Build a flat roof extension - £21,640

Build a dormer loft conversion - £41,640

Concrete foundations - £5,890

Convert a bungalow loft - £28,640

Convert a basement - £33,450