500kg precast concrete counterweights for anchoring marquees, stages, gazebos and other temporary structures wherever you can't peg down, whether that's car parks and showground hard standing or grass where a peg would hit buried services. The trade calls them marquee weights, ballast blocks or kentledge. Ratchet straps run down over the blocks from the structure, and the surface underneath is left exactly as it was - nothing drilled, staked or dug.
At half a tonne each, handling is the thing to plan. Every block is cast with a fork pocket in the base so a pallet truck or forklift can shift it, and there's a 2.5-tonne DEHA spherical-head anchor in the top for off-loading by hi-ab or crane. The chamfered edges take the odd knock during install. You'll need machine handling on site, because nobody man-handles half a tonne of concrete.
The same blocks line up as hostile vehicle mitigation at markets, town centre events and council-run sites. With Martyn's Law (the Terrorism (Protection of Premises) Act 2025) on the statute book, organisers of public events are increasingly expected to show how they've managed vehicle risk, and a row of half-tonne blocks is a straightforward answer to that. If you need a solid perimeter rather than loose weights, we also hire 2.5m concrete jersey barriers and metal crowd control barriers for pedestrian routing.
Hire runs from £15 per block and gets cheaper the longer you keep them. Collection is from our main base in Rotherham, where we have full loading capabilities - Sheffield, Doncaster, Barnsley and Worksop are a short run away - or we'll quote transport separately on a flat bed or a Moffett-equipped lorry that offloads on site. The blocks are also available to buy outright.
We've been supplying marquees and event infrastructure for over 25 years, with £5 million public liability cover on every hire. If you need the structure as well as the ballast, see our marquee hire range, the 3 x 4.5m gazebo marquee or the Party Marquee Hire package.
Areas We Cover
We deliver marquee weights across South Yorkshire: see the Sheffield, Rotherham and Barnsley pages for drive times and local booking evidence.
Tell us what you're anchoring and we'll count the blocks with you. Hit the green button with your quantity and we'll come back the same day, with transport priced in if you want it.
Specifications
- Weight: 500kg per block
- Size: 805mm long x 445mm wide x 655mm high
- Precast concrete with chamfered edges
- Fork pocket in the base for pallet truck or forklift
- 2.5T DEHA spherical head lifting anchor cast into the top
Hire Pricing (per block, plus VAT)
- 1-2 weeks: £15
- 3-9 weeks: £7.50
- 10-11 weeks: £6.50
- 12 weeks or longer: £5.00
Further discounts are available for larger quantities hired for 26 weeks or more. The blocks are also available for sale - contact us for a quote.
Collection and Transport
Pricing is per block for the hire period, with collection from our main base in Rotherham, where we have full loading capabilities. We are happy to quote transport cost separately, via a flat bed or a Moffett forklift-equipped vehicle that offloads the blocks on site. Transport can be arranged UK-wide.
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Suitable For
| Indoors on Artificial Grass |  |
| Indoors on Hard Surface |  |
| Outdoors on Concrete |  |
| Outdoors on Grass |  |
| Outdoors on Grass / Hard Surface Mix |  |
| Outdoors on Hard Surface |  |
| Outdoors on Wood Chip |  |