
Precast Hollowcore Concrete Floor Slabs
Weight distribution
Designed for even weight distribution and long-lasting performance in multi-storey buildings.
Multiple depths
Available in multiple depths and spans to suit different layouts and structural needs. (6’’ or 8’’)
Durability
Strong and designed to reduce self-weight while maintaining support and stability.
Where Precast Concrete Performs Best
Prestressed Concrete Floor Slabs
Our Prestressed concrete Flooring ia widely used for it’s efficiency and structural versatility. The prestressing process allows greater spans, thinner sections, and reduced material use; an advantage on sites where weight, time, and cost all matter.
Manufactured using high strength steel strand within the concrete. The process counteracts the tensile stresses that occur under service loads, resulting in several key advantages
All hollowcore and prestressed systems can be integrated with precast stairs, landings, and structural walls as part of a complete precast solution.
Wide range of application
Sturdy, efficient, and adaptable, suitable for offices, car parks, hotels, sports venues, and schools.
Higher durability
Because the concrete is pre-compressed, it can resist higher loads without cracking. This allows prestressed slabs to support greater live and dead loads compared to conventional reinforced concrete slabs of the same size.
Significant savings
When used in modular systems or large projects with repeated floor layouts, the cost of formwork, prestressing equipment, and labor becomes more economical, providing significant savings over time.
For PreCAST CONCRETE FLOORING SYSTEMS
Quality You Can Measure in Every Precast Concrete Slab
Every McGarrity Bros Ltd. precast concrete floor is the result of meticulous control from the moment materials enter our plant to the point the finished slabs are delivered to the site. Our in-house quality assurance process includes strength testing, dimensional checks, and surface inspections to ensure uniformity across all batches. This is all done in accordance to our BSI certification.
We maintain detailed production records for every run, providing complete traceability and confidence that each unit meets its intended performance specification. This commitment to measurable quality is one of the reasons our precast concrete floor panels are consistently chosen for structural, architectural, and safety-critical builds throughout Northern Ireland, ROI, and the UK.

- Each flooring unit is designed to reduce site labour and speed up construction.
- Slabs arrive ready for placement, eliminating the need for on-site formwork and curing.
- Our experienced teams coordinate closely with the client to ensure smooth delivery and installation, with detailed layout drawings and lifting plans provided when required
- The result is a cleaner, safer site and a structure ready to move forward faster, without compromising the integrity of the build
Faster, Cleaner, More Reliable Workflows
Where Our Prestressed and Precast Concrete Floors Are Used
Residential developments
Used extensively in apartments, housing schemes, and multi-unit residential builds, our precast concrete floor slabs allow for rapid installation with minimal disruption on site.
Commercial and retail spaces
From hotels and sports venues to retail complexes, prestressed concrete floor slabs provide the strength and clear spans needed for open layouts and high daily footfall.
Education and campus projects
Universities, schools, and research facilities benefit from concrete flooring that delivers proven acoustic, thermal, and fire performance across teaching blocks, student accommodation, and communal spaces.
Industrial and manufacturing buildings
Factories, warehouses, and production plants rely on our precast concrete Hollowcore slabs for durability and lasting stability across high-traffic, heavy-use areas.
Car parks and transport hubs
Prestressed concrete floor slabs offer exceptional spanning capability and reduced self-weight, ideal for multi-storey car parks, logistics hubs, and public transport facilities.
Adaptable for Any Project
Why Builders Rely on McGarrity Bros Ltd.
Choosing McGarrity Bros Ltd. means working with a team that understands how to keep projects moving. We produce floors that fit as planned, arrive on time, and perform as expected.
Experience in complex builds
For years, McGarrity Bros Ltd. has supplied precast flooring systems to residential developments, commercial spaces, education projects, and heavy-use industrial sites. That experience shapes how we plan production, handle logistics, and coordinate on-site delivery.
Technical coordination from the start
Our in-house engineers prepare full layout drawings, load calculations, and fixing details to ensure each floor fits precisely within its structure. Early design input helps prevent issues during installation and keeps site teams working efficiently.
Reliable supply and delivery
With controlled production facilities and a coordinated delivery network, we manage every stage in-house, from casting and curing to transport and crane placement. That means consistent quality, predictable lead times, and responsive communication throughout.
Made for the realities of construction
Each slab is produced to perform for decades of service, with strength and finish that meet or exceed project specifications. It is a standard we have maintained across thousands of floors delivered throughout the Republic of Ireland (ROI), Northern Ireland, and the UK.
McGarrity Bros Ltd. flooring systems are trusted across every major sector of construction. Our approach is to design each product such that it meets the unique structural and logistical needs of the project it serves.
How Prestressed Panels Are Engineered
Design Support and Technical Detailing
Behind every floor system we manufacture is a team of engineers who know what happens on site. From the tendering stage through to installation, our technical department supports clients with:
- Structural design and span calculations for precise load support.
- Detailed production drawings for smooth coordination with architects and contractors.
- Edge and bearing detail advice to integrate floors seamlessly with supporting walls or beams.
- Fire, sound, and thermal performance guidance based on slab depth and configuration.
This hands-on support ensures that every precast concrete floor or prestressed concrete floor performs exactly as expected: structurally sound, compliant, and straightforward to install.

Yes, pre-stressed panels offer the strength and stability needed for multi-storey residential and commercial buildings.
Can these panels be used in multi-storey buildings?
Yes, pre-stressed panels offer the strength and stability needed for multi-storey residential and commercial buildings.
How do pre-stressed panels perform in wet or cold weather?
Yes, pre-stressed panels offer the strength and stability needed for multi-storey residential and commercial buildings.
Are they compatible with timber frames or brick facades?
Yes, pre-stressed panels offer the strength and stability needed for multi-storey residential and commercial buildings.
What maintenance is required?
Yes, pre-stressed panels offer the strength and stability needed for multi-storey residential and commercial buildings.
Discover a Better Way to Build Walls with Prestressed Concrete Panels
We are happy to help and advise
Plan smarter, build faster, and reduce on-site surprises. Speak with our team at McGarrity Bros. Ltd. to review panel specifications, plan deliveries, or map out installation sequences tailored to your project. Every panel is made to fit; let us make sure it fits yours.



