Ballast
Concrete Weights That Hold Anything Down
UK-cast ballast blocks with a cast-in rebar handle. One heavy, honest weight for marquees, temporary fencing, signage, scaffold and every job that needs pinning to the ground.
Built to be lifted, stacked and left out
Solid precast concrete with a steel rebar handle cast straight into the block, so it carries by hand and holds by weight.
Why the block works
- Cast-in rebar handle so one person can lift and position it, no straps needed.
- Recessed base cut-outs to sit over a leg, foot or strap and let the weight do the work.
- Stackable form for tidy storage and extra hold in high wind.
- Weatherproof solid concrete that lives outdoors and will not leak, deflate or blow away.
- Consistent weight every block is the weight on the label, every time.
Specification
- Material: precast reinforced concrete
- Handle: cast-in steel rebar
- Block weights: 40kg, 100kg, 500kg and 1000kg
- Sets: 40kg in 2 to 10, 100kg in 2 to 8, 500kg in pairs, 1000kg single
- Finish: natural grey concrete
- Base: recessed cut-outs for legs and straps
- Supply: single, sets or full pallets
Choose your weight
Four UK-cast concrete weights, from 40kg event blocks in sets to a one-tonne kentledge single, each with a cast-in rebar handle. See every size, set and price on the products page.
Why concrete beats the alternatives
Water weights and sandbags have their place. For a weight that stays put and lasts, concrete wins on the things that matter.
Concrete ballast
- Weight on arrival: full weight, ready to use
- Reliability: no leaks or freezing
- Lifespan: reusable for years
- Security: too heavy to walk off
Water weights
- Weight on arrival: empty until filled
- Reliability: can leak or freeze
- Lifespan: seams fail
- Security: emptied and moved
Sandbags
- Weight on arrival: varies, often underweight
- Reliability: split and rot over time
- Lifespan: short-lived
- Security: easily shifted
What Ballast Blocks are used for
One block, a huge range of jobs. Start from the one closest to yours.
Marquee & gazebo weights
Hold marquees, gazebos and event structures down on any surface.
Temporary fencing ballast
Weight Heras panel feet, hoarding and site fencing on hard standing.
Signage & barriers
Steady A-frames, forecourt boards, traffic boards and crowd barriers.
Industrial kentledge
Counterweight and hold-down ballast for plant, rigs and temporary works.
Why Ballast Blocks
A heavy, simple product from a business that knows how to make and move it. Here is what stands behind every block.
Made in Britain
Every block is cast in the UK, not imported, so quality and supply stay in our own hands.
Part of the Gala group
The team behind Gala Tent, an established UK business, with the nationwide supply and delivery network to match.
Managed to recognised standards
Part of a Gala group operation run to ISO 9001, 14001 and 45001 for quality, environmental and safety management.
Built for trade
Trade pricing, full pallets and UK-wide delivery, behind a product built to be reused across jobs for years.
Buying for a site or event?
Trade pricing, full-pallet quantities and delivery across the UK. Tell us the job and we will spec the ballast for it.
Common questions
How much does a concrete marquee weight weigh?
Our blocks come in 40kg and 100kg, sold in sets, plus a 1000kg single block for heavy-duty ballast. As a rule, heavier and more numerous weights give a safer hold in exposed or windy conditions.
How many weights do I need per gazebo or marquee leg?
It depends on the structure size and how exposed the site is. As a starting point many event users allow one 40kg block per leg for a small gazebo, and more for larger marquees or open ground. Send us the details and we will advise.
Can I use these for temporary fencing and Heras panels?
Yes. The blocks work as ballast for temporary fence feet, hoarding and site perimeter panels, and as counterweight for signage and barriers. See the temporary fencing page for the recommended setup.
Do you deliver, and can I buy in bulk?
We deliver on pallets across the UK mainland and supply everything from single blocks to full pallets at trade quantities. Request a quote with your postcode and volume for a delivered price.
Are the blocks reusable and suitable for outdoor storage?
They are. Solid concrete stands up to being left outdoors year round and stacks for tidy storage between uses, so one set of blocks lasts across many jobs.
Not sure what you need?
Practical guides on weighting gazebos, marquees, fencing, signage and kentledge, with straight answers and how-much figures.
Ballast Blocks
UK-cast concrete ballast weights and kentledge for events, construction, fencing, marine and industrial anchoring. A Gala group brand. Visit Gala Tent.