Steel BeamInstallers
Two installers seen from behind lifting a steel beam onto a padstone

RSJ installation · Hull

RSJ installation in Hull

RSJ installation for homes in HU1, HU2, HU3, designed by a structural engineer.

  • Survey, design and installation in one
  • Covering HU1, HU2, HU3
  • Inspected before it is covered

Free survey in Hull

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  • Free survey visit
  • Engineer's calculations arranged
  • Building control handled
  • Fixed written price once scope is agreed
  • England, Wales, mainland Scotland & NI

About our RSJ installation service in Hull

We cover RSJ installation in Hull (HU1, HU2, HU3) and the streets around it. We also cover the surrounding towns and villages in the East Riding of Yorkshire. Each job is designed by a structural engineer and approved through Hull City Council before work begins.

People still call almost any steel beam in a house an RSJ, even though the sections fitted today are usually universal beams with parallel flanges. Whatever the name, the job is the same: a length of structural steel, made to an engineer's specification, carrying floors, walls or roof over a space where support used to be.

Things to plan for

  • Floor joists can rest on the bottom flange, hang from timber packers bolted into the web, or be notched to sit over the steel. The engineer specifies the connection, and it affects how flush the finished ceiling can be.
  • If you already hold calculations from an architect or engineer, we install to those. Where something on site differs from the drawing, such as a weaker wall or a different joist direction, the engineer is asked to confirm before work carries on.
  • The engineer chooses the section type for the job. Universal beams suit most spans, universal columns are stockier and used as posts or where depth is limited, parallel flange channels fit against walls or timbers, and box sections suit slim or exposed members.
  • Steel for internal use is normally delivered with a primer coat to protect it during installation. Beams in damp positions, within external walls or exposed outside need a more robust coating or galvanising, as the engineer specifies.
  • An RSJ inside a home commonly needs 30-minute fire resistance where it supports elements of structure. Fire-rated plasterboard boxing is the usual method, with intumescent paint used when the beam is to remain visible.

Four stages, one team

  1. Survey in Hull

    We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.

  2. Engineer's design

    A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.

  3. Building control

    We submit a building notice or full plans application to Hull City Council, so approval is in place before the wall is touched.

  4. Install and sign-off

    Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.

What does RSJ installation cost in Hull?

As a guide, budget £760–£2,380 per beam including VAT for rSJ supply and fit (single beam) in Hull, based on published UK cost guides adjusted for prices in Yorkshire and the Humber (-5%).

JobTypical guide rangeWhat it usually covers
RSJ supply and fit (single beam)£760–£2,380 per beamBeam supplied, delivered, lifted and packed on padstones, with propping (calculations and approval priced separately)
Fire protection to a steel beam£140–£570 per beamFire-rated board boxing or an intumescent coating system as specified
Temporary works and propping£140–£480Props, spreaders, needles and sole plates for a typical opening, installed and struck
Steel beam replacement£1,900–£5,200Propping, removing the failed beam, new steel on proper bearings, approval and making good

Figures include our approximate regional adjustment for prices in Yorkshire and the Humber (-5%) and are rounded. How these figures are worked out.

Approvals in Hull

In England, taking out a load-bearing wall or putting in a beam is building work under the Building Regulations 2010. It needs approval from building control, either Hull City Council or a registered building control approver, through a full plans application or a building notice. Part A covers the structure and Part B covers fire safety, which is why steel in homes is usually fire protected.

If the beam bears into a wall you share with a neighbour, the Party Wall etc. Act 1996 applies, and a party structure notice must be served at least two months before that work starts. We arrange this through a party wall surveyor.

Building rules in England

RSJ installation near Hull

RSJ installation in Hull: your questions

Do I need a party wall agreement for RSJ installation in Hull?

Yes, if the beam bears into a shared wall: the Party Wall etc. Act 1996 applies in England and Wales, and a party structure notice must be served at least two months before that work starts. We arrange it through a party wall surveyor.

Do you cover Hull for RSJ installation?

Yes. We carry out RSJ installation in Hull and the HU1, HU2, HU3, HU4 and HU5 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

Can you fit an RSJ to my own engineer's calculations?

Yes. We install to calculations and drawings from your engineer or architect, as long as they cover the beam, bearings and any columns or connections. If site conditions differ from what the design assumed, we check with the engineer before carrying on.

Do I need building regulations approval to fit an RSJ?

Yes, when the RSJ carries structural load such as a wall, floor or roof. In England and Wales building control is notified or approved beforehand, Northern Ireland needs a council application before work starts, and Scotland requires a building warrant first. A completion certificate confirms sign-off at the end.

What does RSJ stand for?

RSJ stands for rolled steel joist. It was the name for a hot-rolled I-shaped steel section with tapered flanges, and it is still used loosely for any steel beam in a house. Most steels fitted in homes today are universal beams, which do the same job with parallel flanges.

Planning to take a wall out?

Book a free survey visit. You get an itemised written quote covering calculations, building control, steel and making good.