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New-Build Precast Products for Superior Structural Performance

One of the most persistent challenges on a construction site is maintaining efficiency without sacrificing quality. Traditional on-site pours can introduce issues that only become visible later: inconsistent units, difficulty handling them, and delays caused by slow or inaccurate placement. Even minor misalignments in sills, lintels, or openings can create a chain of corrections that slows trades ... More

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Key BENEFITS AND STAKEHOLDERS

Who Benefits from New-Build Precast?

Precast solutions improve the day-to-day flow of a project site, offering tangible advantages on fast-paced builds across Northern Ireland, the Republic of Ireland, and the UK. With components arriving dimensionally accurate and ready to fit, teams can plan and coordinate work with greater certainty, reducing decision-making and interruptions at the building stage.

Builders

gain consistency and speed. Accurate sills, lintels, and thresholds allow walls to rise as designed, keep openings square, and reduce the stop-start nature of adjustments during installation. Units are cast for easy handling, reducing strain and helping teams place elements correctly the first time.

Engineers

benefit from reliable dimensions, reinforcement accuracy, and predictable bearing surfaces. What is detailed on the drawings arrives ready to install, reducing the need for improvisation and supporting dependable structural performance.

Project managers

see the operational impact. Accurate components help maintain sequencing, reduce delays between trades, and simplify coordination across all phases of the build.

By standardising dimensions, simplifying placement, and reinforcing structural integrity, precast components remove common ground level challenges and give your team the assurance that the build will progress smoothly. 

Our range gives builders the flexibility to match the right profile to each wall type

Sills Shaped for Modern Blockwork and Timber Frame Builds

Single Course Sills (4”)

A practical choice for standard block construction, these sills create a stable seating point with a clean edge, reducing trimming and helping walls stay uniform from the ground up.

  • Face: 55mm
  • Back: 100mm
  • Width: 260mm
  • Lengths: 400mm up to 2600mm in 50mm increments

Double Course Sills (6”)

Designed for deeper walls, these units provide increased bearing and help maintain alignment where greater framework strength is required.

  • Face: 100mm
  • Back: 140mm
  • Width: 260mm
  • Lengths: 400–3600mm (50mm increments)

Double Course Timber Frame Sills (6”)

Sized specifically for timber frame builds, these sills fit neatly beneath the frame while offering strong, dependable support for secure installation.

  • Face: 100mm
  • Back: 140mm
  • Width: 240mm
  • Lengths: 400–3000mm

Double Course Stone Sills (6”)

A wider base makes these sills ideal for stone cladding or deep façade systems, giving masons the stability needed for heavier materials.

  • Face: 100mm
  • Back: 140mm
  • Width: 350–400mm
  • Lengths: 400–3000mm

Corner Sills (Single and Double Course)

Used to maintain clean lines at corners and directional changes, these units help create a consistent profile around the building envelope.

  • Face profiles: 55mm or 100mm
  • Back profiles: 100mm or 140mm
  • Width: 260mm
  • Dimensions: 750mm x 750mm

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Our lintel range supports everything from small internal spans to wide external apertures



Lintels and Pre-Stressed Lintels for Structural Support

Openings depend on lintels that hold weight without movement or deflection. Smooth casting, accurate reinforcement, and consistent internal strength ensure walls stay level and openings remain perfectly formed.

Standard Lintels (6×4”)

Compact and versatile, these lintels suit smaller spans with ease, providing reliable support for everyday internal openings.

  • Height: 150mm
  • Width: 100mm
  • Lengths: 600–2700mm (150mm increments)
Standard Lintels (9×4”)

With increased height for greater load-carrying ability, these units offer stability for longer spans while remaining easy to handle during installation.

  • Height: 225mm
  • Width: 100mm
  • Lengths: 600–3600mm

Pre-Stressed Lintels (6×4”)

Ideal for larger spans, these prestressed units minimise deflection and distribute load evenly, making them suited to external walls and heavier load-handling demands.

  • Height: 150mm
  • Width: 100mm
  • Lengths: 1200–2800mm (200mm increments)

Pre-Stressed Lintels (9×4”)

These taller sections increase strength across wide openings, turning engineered calculations into proven structural integrity.

  • Height: 225mm
  • Width: 100mm
  • Lengths: 1200–4200mm

Pre-Stressed Lintels (9×6”)

Designed for significantly larger openings, this wider profile provides additional bearing and superior load distribution where structural requirements are more demanding.

  • Height: 225mm
  • Width: 150mm
  • Lengths: 1200–4200mm

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Even minor components can have a major impact on how a project comes together. Used daily on site, they support accurate placement, durability, and a high-quality finish.

Supporting Components: Door Thresholds, Cavity Closers, and Padstones

Even minor components can have a major impact on how a project comes together. Used daily on site, they support accurate placement, durability, and a high-quality finish.

Door Thresholds

Providing a strong and level base for door frames, these thresholds ensure openings stay square and secure, reducing movement over time.

  • Lengths: 2100mm, 2400mm

Cavity Closer

These units help maintain cavity width, support insulation continuity, and make the installation of windows and doors more straightforward.

  • Height: 100mm
  • Width: 75mm
  • Lengths: up to 2700mm (150mm increments)

Padstones

Engineered to spread the load from beams and lintels into supporting blockwork, padstones prevent crushing and contribute to long-term structural stability.

  • Heights: 140mm or 215mm
  • Width: 100mm
  • Length: 450mm

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Even minor components can have a major impact on how a project comes together

Coping, Pier Caps, and Chimney Components for Finishing Work

At the higher levels of a build, precision is essential. Copings and caps protect walls from weather, ensure clean alignment across long runs, and finish structures with cohesive detailing. Each unit is cast to deliver smooth edges and reliable water shedding.

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Saddle Back Wall Coping and End Coping

Widths: 225mm and 330mm
Depth: 75mm
Length: 900mm
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Radius Edge Wall Coping and End Coping

Widths: 225mm and 330mm
Depth: 70mm
Length: 900mm
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Chimney Copings

: 450 x 450mm
: 450 x 900mm
: 550 x 550mm
: 550 x 900mm
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Single Slope Coping

Width: 330mm
Depth: 75mm
Length: 900mm
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Pier Caps

: 550 x 550mm
: 675 x 675mm
: 800 x 800mm
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Chimney Throating Blocks

Streamline Your Construction Process in NI, ROI, and the UK with New-Build Precast

We are happy to help and advise

Speak with us today about the precast pieces that will strengthen your build in Northern Ireland, the Republic of Ireland, or the wider UK. The right components save time, reduce effort, and cut down on rework, and good planning starts with choosing materials that support the needs of your project

Take the next step with McGarrity Bros. Ltd.

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