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RSJ cost in CF11

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CF11 it ranges from £1,240 (PK CONSTRUCTION based in CF14) to £2,096 (River Gods Limited based in CF14).

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 CF11 by posting a job with HaMuch and we will send it to extension builders in CF11.

"RSJ installation to open up kitchen and utility room. About 2m wide." - CARDIFF, job posted 22/04/25

"RSJ installation" - CARDIFF, job posted 22/04/25

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Location in UK	Hourly Rate	Daily Rate
Install An RSJ near Cardiff	£34	£223
Install An RSJ near Penarth	£35	£223
Install An RSJ near Barry	£33	£218
Install An RSJ near Caerphilly	£33	£208
Install An RSJ near Church Village	£34	£214
Install An RSJ near Risca	£32	£218
Install An RSJ near Pontypridd	£33	£211
Install An RSJ near Newport	£41	£233
Install An RSJ near Vale of Glamorgan	£29	£217
Install An RSJ near Weston-super-Mare	£33	£253

Estimates for common extension builder jobs in CF11;

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.