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Propping and Needling

Propping and needling are the temporary works that provide structural support to a building being modified. Propping carries the vertical loads on temporary supports; needling threads beams through a wall to support masonry above. From façade retention to load-bearing wall openings, we stock a range of propping solutions alongside decades of engineering experience.

Use cases

  • Façade retention
  • Large wall openings
  • Building refurbishment
  • Beam/RSJ installation
  • Heritage building renewal

Our Solutions

Not sure what propping solution suits your project? Speak to an SEL expert and we'll talk it through.

Case studies

Our Expertise

The calculations involved in propping can be complex. Our in-house engineers have decades of experience with temporary works design for propping, needling and more. Here are few recent projects designed by our engineers, from heritage façades to large structural openings.

Our engineers can design a propping and needling scheme however awkward the job. Get in touch today.

We also supply

Complete the system

Propping and needling often runs alongside the rest of a temporary works package, from the formwork for new foundations to the design that ties it all together.

Common questions

What is propping in construction?
Propping holds a structure's loads on temporary supports while work goes on beneath or beside it, whether that's a floor, a wall or a roof. Temporary propping systems range from single adjustable props to soldiers built up into needle beams and raking shores, and the right one depends on the load and height set out in the temporary works design.
What is the difference between propping and needling?
Propping holds vertical loads, from floors, walls or roofs, on temporary supports. Needling carries the masonry above a new opening by passing beams (the needles) through the wall while it is cut, until permanent steelwork goes in.
When are needle beams required?
Needle beams come in when an opening, a doorway, window or larger access is formed in a load-bearing wall. The needles carry the masonry and any floor or roof loads above the opening until the permanent steelwork is installed.
How much load can a propping and needling approach carry?
It depends on the system and the design. Our Slimshore soldiers have an axial capacity of 232kN at 4m. The safe figure for your wall will be set out in your temporary works design.
Can propping and needling be used on heritage or older buildings?
Yes. The approach is used on stone, timber-frame and even cob walls as well as standard masonry. The state of the masonry drives the spacing between needles, which is worked out as part of the temporary works design.
Do you provide temporary works design for propping and needling?
Yes. Our in-house Civil and Structural Engineers design to BS5975, including a site investigation to check foundations, bearing capacity and needle spacing. Contact your nearest depot to arrange a site visit.
How much does propping and needling cost to hire?
Hire is charged per week, and what you pay comes down to the systems your job needs, how much of each, and how long they stay on site. Our engineers put together an itemised kit list for each project, so you can see everything before you decide. Ask us for a quote and we'll price it up, often within 24 hours.
How it works

Propping and Needling with SEL

1

Consultation

We offer free consultations on all propping and needling projects, and can even visit your site

2

Design*

We design a propping and needling scheme that takes the headache out of planning propping.

3

Delivery

All kit arrives ready to install per our temporary works designs. We charge per week and quote everything up-front.

*Designing the scheme yourself? We are happy to supply kit only.

We can help with your next project.

Our team is friendly, knowledgeable and ready to consult. We offer complimentary site visits, fast delivery and competitive rates. Simply fill in the form and we'll be in touch.

You can also give us a call at any time.