
Concrete Ballast Weights
The full Ballast Blocks range in one place. UK-cast precast concrete with a cast-in rebar handle, from 40kg event blocks in sets to a one-tonne kentledge single. Pick a weight, choose a set, take pallet delivery.
Choose your block
Four cast weights cover everything from a pop-up gazebo to a crane counterweight. The 40kg, 100kg and 500kg come in sets, so you can weight a whole job in one order.

40kg blocks
The everyday event and anchoring weight, carried by hand on its cast-in rebar handles. The most popular choice for marquees and gazebos.
- Set of 2 (80kg total)£158.99
- Set of 4 (160kg total)£174.99
- Set of 6 (240kg total)£219.99
- Set of 8 (320kg total)£294.99
- Set of 10 (400kg total)£354.99
Each block: approx. 340 × 270 × 225mm.
Used for marquees & gazebos.
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100kg blocks
A recessed lifting slot cast into the top, and a precast base recess so a pallet truck can position it. For larger marquees and hard ground.
- Set of 2 (200kg total)£207.99
- Set of 4 (400kg total)£359.99
- Set of 6 (600kg total)£509.99
- Set of 8 (800kg total)see site
Each block: approx. 350 × 350 × 345mm.
Used for kentledge & heavy ballast.
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500kg blocks
Heavy ballast for large structures and demanding counterweight jobs, with forklift channels cast into the base for placement. A step up between the 100kg block and the one-tonne kentledge single.
- Set of 2 (1000kg total)£405.99
- Larger quantitieson request
Each block: approx. 1200 × 600 × 600mm.
Used for kentledge & heavy ballast.
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One product, built properly
Every block is solid precast concrete with a steel rebar handle cast straight in, so it carries by hand and holds by weight.
Specification
- Material: precast reinforced concrete
- Handle: cast-in steel rebar
- Block weights: 40kg, 100kg, 500kg and 1000kg
- Sets: 40kg and 100kg in sets, 500kg in pairs, 1000kg single
- Finish: natural grey concrete
- Base: recessed cut-outs for legs and straps
- Supply: single, sets or full pallets
Browse by the job
Not sure which weight you need? Start from the job and we will point you at the right block.
Helpful guides:
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
What weights do you offer?
40kg, 100kg and 500kg blocks, all with a cast-in rebar handle, plus a 1000kg single block. The 40kg and 100kg come in sets of 2 up to 10, the 500kg in pairs, and the 1000kg as a single, so you can weight anything from a gazebo to a crane counterweight.
What comes in a set?
A set is that number of identical blocks. A set of four 40kg blocks is four separate 40kg weights, 160kg in total. Sets let you cover every leg or foot of a structure without ordering blocks one at a time.
Can I buy a single block or mix weights?
Yes. Order a single block, a set, or full pallets across different weights on one delivery. Tell us the job and we will spec the mix for it.
Do you deliver, and how?
We deliver on pallets across the UK mainland. Request a quote with your postcode and the blocks you need and we will come back with a delivered price.
Are the blocks reusable?
They are. Solid concrete stands up to being left outdoors year round and stacks tidily between uses, so one set of blocks lasts across many jobs.
Ballast Blocks
UK-cast concrete ballast weights and kentledge for events, construction, fencing, marine and industrial anchoring. A Gala group brand. Visit Gala Tent.
Ballast