Steel columns & posts · Portishead
Steel columns & posts in Portishead
Steelwork, approvals and making good for steel columns & posts in Portishead and nearby.
- Itemised written quote
- Beam sized by a structural engineer
- Covering Portishead and nearby
- Free survey visit
- Engineer's calculations arranged
- Building control handled
- Fixed written price once scope is agreed
- England, Wales, mainland Scotland & NI
What steel columns & posts involve in Portishead
Planning steel columns & posts in Portishead? Our team covers BS20 and the streets around them. The wider Somerset area is covered as well. You get one written quote for the calculations, approvals, propping, steel and making good.
Sometimes the right support for a beam is not a wall at all. A long span can be broken in two with a slim post in the middle, a beam can land on a column where the masonry below is weak, or the corner of an L-shaped opening can be held up by a single post instead of a brick pier.
Worth knowing before you start
- A post is needed when a beam has nothing adequate to bear on, or when a span is long enough that a central support gives a shallower, lighter beam. The engineer weighs up a column against a deeper beam for each layout.
- The base plate is welded to the foot of the column and fixed to the pad with holding-down bolts. A cap plate at the top bolts to the beam above, so the two act together and the beam cannot slide off its support.
- Columns on upper floors cannot simply stand on joists. The load has to be traced down through the building to the ground, which can mean a column directly below, a beam to collect it, or a redesign of the layout.
- Hollow sections, either square or circular, give a neat, slim profile and are common where a post stays on show. Universal columns have an H-shaped section and are often used where the post will be boxed in or built into a wall.
- Steel at floor level can corrode if it sits in damp. The detail at the base is designed to keep damp away, using grout, protective paint and the floor's damp-proof membrane, and a column in a cellar or garage may need a heavier coating.
Four stages, one team
Free visit
A short visit to Portishead to see the job, agree what you want and check the bearings, floors and services that affect the design.
Calculations
The engineer's calculations and a simple drawing are prepared for your opening and shared with you before anything is ordered.
Building control
We submit a building notice or full plans application to North Somerset Council, so approval is in place before the wall is touched.
Steel in, made good
On site we prop, open up, fit and pack the steel, then fire protect, box in and plaster once the inspection is done.
What do steel columns & posts cost in Portishead?
As a guide, budget £520–£1,540 per column including VAT for steel column or post in Portishead, based on published UK cost guides adjusted for prices in the South West (+3%).
| Job | Typical guide range | What it usually covers |
|---|---|---|
| Steel column or post | £520–£1,540 per column | Column supplied and fitted with base and cap plates on a pad foundation |
| Basement or cellar steelwork | £2,600–£6,700 | Beams and columns with pad foundations under the floor above (excavation and waterproofing extra) |
| Steel goalpost frame | £2,050–£6,200 | Two posts and a beam bolted as a frame, pad foundations, base plates and fitting |
| Kitchen-diner knock-through | £2,600–£6,200 | Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra) |
Figures include our approximate regional adjustment for prices in the South West (+3%) and are rounded. How these figures are worked out.
Building rules for Portishead
Structural openings in English homes need building regulations approval before work starts. North Somerset Council can deal with it, or you can use a registered building control approver. Either way the steel is inspected before it is covered, and a completion certificate is issued at the end. Keep it safe for when you sell.
Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.
Steel columns & posts near Portishead
- Nailsea 3.5 mi
- Clevedon 4.7 mi
- Kingswood 11.4 mi
- Mangotsfield 11.4 mi
- Weston-super-Mare 13.0 mi
- Yate 15.6 mi
Steel columns & posts in Portishead: your questions
How much do steel columns & posts cost in Portishead?
As a guide, budget £520–£1,540 per column including VAT for steel column or post in Portishead, based on published UK cost guides adjusted for prices in the South West (+3%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.
Do you cover Portishead for steel columns & posts?
Yes. We carry out steel columns & posts in Portishead and the BS20 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.
How thin can a steel support post be?
It depends entirely on the load, the height and how the post is restrained, so there is no standard size. Hollow sections often give the slimmest look for a given strength, and an engineer can sometimes reduce the section by adding restraint partway up. They specify the exact section after calculating the load.
How long does it take to fit a steel post?
The column itself can often be fixed in a day, but the whole job usually spans a few working days. The floor is cut and the pad dug, building control inspects it, the concrete is poured and left to cure, and then the column goes in and is packed tight to the beam.
Can a steel post replace a supporting wall?
Yes, in many layouts a wall can come out with a beam above it and one or more posts taking the beam's load down to the ground. This keeps most of the openness while shortening the span. The engineer decides how many posts are needed and where they can go.
Do you also work near Portishead?
Yes. We also cover nearby towns including Nailsea, Clevedon, Kingswood and Mangotsfield.