How much space is required for an on-site precast manufacturing unit?
It is usually the second question we are asked, right after cost. I am going to disappoint you slightly: there is no single figure. But there is a straightforward way to work it out, and the answer surprises most people.
People picture the machine when they think about an on-site precast plant. The press is impressive, it is noisy, it is where the product comes from. It is also the smallest part of the space you will need.
The real space goes to things that are much less exciting to look at: materials waiting to be used, products waiting to cure, and finished stock waiting to be laid.
Where the space actually goes
Raw material storage. Aggregates and sand in separate heaps so they do not mix, cement and fly ash kept dry. The size depends on how often trucks can deliver. A site with unreliable supply needs bigger heaps.
Mixing and batching. The mixer or batching plant, with space for loaders to feed it.
Production. The press line for vibro-pressed products, or the casting area for wet-cast products in rubber moulds.
Curing. Fresh products need time, moisture and protection before they are strong enough to move. This area holds several days of production at once.
Finished stock. Cured, tested products stacked and waiting for the work front. This is the buffer that keeps your laying gangs from ever standing idle.
Access and movement. Room for trucks to deliver materials, for loaders and pallet movement inside the yard, and for vehicles to take finished product to the work front. Cramp this and everything else slows down.
A small testing area for casting and testing cubes, with records kept at site.
How to size it
The curing and stock areas dominate, and they follow a simple logic:
Units in the yard at any time ≈ daily output × (curing days + days of finished stock you want to hold)
Divide that by how many units you can safely stack on a square metre for that product, add aisles, and you have the core of your yard. Everything else is added around it.
To give you a sense of scale: our tile capacity is 25,000 tiles a day. Multiply that by even a week of curing and buffer, and you can see why the stacking yard, not the machine, decides the plot size.
What makes a good plot
- Level, firm ground that does not turn to slush in the rains. Curing racks and stacks on soft ground are a problem.
- Drainage. Standing water in a stacking yard is a daily headache.
- Close to the work front, so the finished product travels metres, not kilometres.
- Water for mixing and curing, and power, whether from the grid or a generator.
- Truck access from the main road for raw materials.
Why I won't quote you a number here
Because it would be wrong for half the people reading this. A tile job and a kerb job at the same daily tonnage need very different yards. So does a project that wants two days of buffer and one that wants two weeks. What we do instead is ask for your quantities, your laying programme and a site plan, and propose a layout that fits the space you actually have. It is the first thing we do in a project assessment.