Invisible Connections supplies the concrete construction industry with ‘unseen’ telescopic connection systems for precast stairs and landings, beams and columns. We are also specialist manufacturers of the FERBOX reinforcement continuity system, to application requirements.
All Invisible Connections’ products are designed to meet industry demands for improved safety and construction efficiency, whilst ensuring cost competitiveness. Our Product Selection Guide provides an at a glance overview of all our products, plus key features and benefits.
Our telescopic connection systems are endorsed by European Technical Approvals (ETAs). They comply with relevant Eurocode standards and are individually UKCA and CE marked. FERBOX is endorsed by CARES Technical Approval and is manufactured under a CARES Quality Management system to the ISO9001 standard.
TSS and RVK Stair Landing Connectors
Primarily (although not exclusively) intended to invisibly support precast stair landings off core walls (precast or in situ). An elegant alternative to traditional RSAs or corbels.
DTS Medium Load and BSF High Load Connectors
Medium load and heavy-duty, high load connectors designed to invisibly connect beams to beams, or beams to columns, eliminating cumbersome corbels or bracketry
FERBOX Reinforcement Continuity System
Maintains structural continuity across concrete construction joints. CARES approved and purpose-made to replicate scheduled reinforcement design, including EC2 anchorage and lap requirements.
Industrial and Infrastructure
Multistorey Car Parks
Sport and Leisure
We’re delighted Priyanka Ravichandran has joined our team as a Structural Engineer.
We will close for the Christmas break on Friday 22nd December and re-open at 8.00am on Tuesday 2nd January.
Invisible Connections attended this highlight in the concrete construction industry calendar.
Telescopic connectors provide us numerous advantages for precast stair installation. Apart from improved time and efficiency, the health and safety gains over traditional support methods are a key driver to satisfy our own needs, as well as those of our clients.
Thank you for sending the calculations and installation advice. The new calculation software looks great. Very clear, user friendly and with more design checks than the previous version. It’s a pleasure to see how you are constantly improving.
As specialists in precast concrete car park construction, we use telescopic connectors for many key applications. Particularly, the BSF system helps us to construct a ‘modern’ frame without cumbersome corbel supports and enables rapid assembly on site. The technical back-up provided by Invisible Connections provides us with added reassurance.
We have completed installation of our stairs in both cores, using TSS connectors. Everything went smoothly, quickly and easily. The new anti-uplift brackets have done the job perfectly.
Having FERBOX pre-sized is great from a quality and time-saving perspective, because if you use a regular continuity box, you end up having short lap lengths, depending on where you cut it. It goes back to your time spent fixing, looking for things, cutting them and having to retape corners and ends to stop concrete going in.
We hadn’t typically gone the ‘specials’ route before. But, by investing a little upfront time to schedule our FERBOX requirements, we gained a smooth supply and installation process – without wastage or complication – and exceeded the programme demands of our slip-formed cores.
I’ve used your services on my last three projects (telescopic connectors for precast and continuity strip for in-situ). You’re very good at accommodating site demands for lead-in times and value competitiveness. Very happy with the service I’ve received on all three projects and hope this relationship will continue on future developments.
Invisible Connections are an outstanding company to work with. Between Ross in sales and Derek on the technical side of things, iC have an offering which the rest of the market would do well to get close to. I can’t credit these two individuals enough for the support they have given me for both standard and bespoke FERBOX connections – some rather more complex than others!
We were thinking how we could give the architect what they wanted: a finished landing with a shadow gap all around. We used the telescopic connection system from Invisible Connections, which made it a lot easier, both to install the wall recesses and to install the stairs.