1,000kg Concrete Ballast Blocks

Stable counterweights for scaffolding, hoarding & temporary works

Why choose 1,000kg concrete ballast blocks?

  • Stable square profile – sits flat on the ground for maximum contact and stability.
  • Fixing options – 2 × M16 threaded sockets for attaching posts directly to the block.
  • Linkable – single 68mm hole allows scaffold poles to connect blocks together.
  • Flexible supply – available for short or long-term hire, or to buy outright.
  • Reliable alternative – more durable and secure than plastic or water-filled weights.
  • Customisable – bespoke lifting points, fixings, or Halfen channels available on request.

With 1000kg concrete ballast blocks, you’ll get:

Response from the team within 4 working hours

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Flexible hire or buy options, short or long term 

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UK-wide delivery with optional offload & placement service

Heavy-duty kentledge blocks for site security and anchoring

Our 1,000kg concrete ballast blocks are designed for projects requiring maximum stability.

Unlike marquee weights, these blocks feature a solid square profile with no base recess, giving them greater surface contact and reducing the risk of shifting on softer or uneven ground.

With cast-in sockets and pole holes, they’re ideal for scaffolding ballast, hoarding, facade retention, and larger temporary structures.

Ballast blocks and marquee weights

Product Features & Specifications of Ballast Blocks

Our 1,000kg concrete ballast blocks are designed for reliability, stability, and safe handling. Here’s what makes them unique. 

Concrete strength: C40 mix

Durable, high-strength concrete ensures a long service life across site and structural uses.

 

Connection: Flat edges (non-interlocking)

No interlocking design gives flexibility in placement, with linking provided by scaffold pole holes.

Edge detail: Chamfered edges

Minimises the risk of chipping and provides a professional finish suitable for visible site applications.

 

Concrete finish: Mould finish on all visible faces

Creates a smooth, clean appearance on visible faces with a hand-trowelled finish on non-visible faces.

Design life: 50 years+

Built to last, with a lifespan far beyond typical project timelines.

 

Reinforcement cover: N/A (unreinforced)

Absence of steel reinforcement eliminates corrosion risk, maintaining consistent weight and strength.

Sizes & dimensions of 1,000kg ballast blocks

Heavy enough for serious stability, compact enough for flexible use on site.

Height (mm) Length (mm) Width (mm) Weight (kg)
750 750 750 1,000
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A Partner You Can Trust

We’ve been providing precast solutions for over 18 years, completing more than 1,000 projects across the UK. 

From large-scale infrastructure to specialist event ballast, our customers choose us because we’re straightforward to deal with, quick to respond, and focused on getting projects done right.  

We don’t just supply blocks; we provide clear advice, technical support, and practical solutions to help you save time and prevent issues on site. 

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Applications for 1,000kg ballast blocks

These blocks are a go-to choice for construction and site security. The threaded sockets allow posts to be fixed directly, making them ideal for hoarding, fencing, and facade retention. Their stability and weight also make them a natural fit for scaffolding ballast, where safety and compliance are essential. 

Beyond site use, they can also serve as marine ballast – with our optional marine concrete mix, they’re suitable as sinker blocks, mooring weights, or buoy anchors in saltwater environments. 

Scaffolding Ballast & Kentledge

Site Setup & Security

“JP Concrete were as reliable in delivery as they were throughout the rest of our dealings with them. They manufactured over 140 blocks within a tight timeframe and organised staggered deliveries which were all on time. They also collected the blocks from the bridge, which presented its own issues, but again these were worked around with the minimal amount of fuss.”

Pierre Ely - HFD Ltd

Hire or Buy - the flexible choice

Choose between outright purchase and flexible hire.

  • Short-term hire for events, scaffolding ballast, or temporary site security.
  • Long-term hire for seasonal or ongoing requirements.
  • Outright purchase for contractors who prefer permanent stock.
Precast concrete hoarding blocks on Putney Bridge

Handling & installation of ballast blocks

The 1000kg blocks are straightforward to handle and position.

  • Delivery: direct from our Nottingham site, with UK-wide distribution.
  • Offloading/plant: forklift or telehandler recommended.
  • Lifting point: 1 × 2.5T Deha lifting clutch cast into the top.
  • Placement: square profile makes them stable on soft or uneven ground.
  • Flexibility: fork recess not required, improving base contact area.

1000kg Concrete Ballast Blocks Media Pack

Our media pack includes the product brochure, handling guide, O&M manual, and safety data sheet — all in one document.

Everything you need to plan, specify, and install the product with confidence.

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    Questions We Get All The Time

    Here’s what contractors, engineers, and site teams typically want to know, and if we’ve missed yours, give us a call on 0115 895 1120 or email the team at [email protected]
    Both weigh 1 tonne, but marquee weights feature a base recess for pallet truck handling. The 1,000kg ballast block is a square profile with threaded sockets and a pole hole, making it better suited for scaffolding, hoarding, and soft ground conditions.

    No, they can be offloaded with a forklift or telehandler and lifted via the pin anchor cast into the top.

    Yes, the 68mm cast-in hole allows scaffold poles to connect multiple blocks.

    The 2 × M16 sockets enable posts or fixings to be securely bolted on, making them ideal for hoarding and fencing.
    Yes, all ballast blocks are available for both hire and purchase, with flexible hire terms.

    Yes, when produced with our marine concrete mix, they’re suitable for sinker blocks, mooring weights, or buoy anchors.

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