Precast Concrete Grain Stores
Reliable precast walling for safe, dry grain storage
Why Choose Precast for Grain Storage?
Grain stores have specific requirements: crops must remain dry, separated, and protected, while farmers need storage systems that are quick to install, long-lasting, and easy to maintain. Precast concrete provides a tried-and-tested solution for both new agricultural buildings and retrofitted stores.
Whether you need fixed perimeter walls, flexible dividing bays, or heavy-duty walls incorporated into the floor slab, our precast range meets every need. With panel lengths compatible with standard steel centres and wall heights up to 6m, we can supply robust grain storage solutions that work with your building, not against it.
Key Benefits of Precast Grain Stores
Quick installation – panels and walls are delivered ready to slot between steel columns, bolt down, or sit on cast-in toes.
Keep crops dry – sealed joints prevent moisture ingress, helping to preserve grain quality.
Flexible storage layouts – freestanding units and panels allow easy separation of different crops.
Protect your building frame – cast-in and HD cast-in walls support crop loads through the slab, reducing stress on your steel structure.
Built for height – systems available up to 6m, with panels designed to hold grain at its natural angle of repose.
Agricultural-compatible – sizes and spans suit typical farm buildings, with panels in 15ft and 20ft lengths and 150mm, 180mm, and 280mm thicknesses.
Suitable Products For Precast Concrete Grain Stores
Best for: Permanent perimeter walls and high-capacity storage bays.
A farmer’s first choice for grain storage. Prestressed panels slot between steel columns or fix to the outside face to create perimeter walls and can also be used internally for dividing bays.
Available in 150mm, 180mm, and 280mm thicknesses
Lengths from 3m to 6.5m, including 15ft and 20ft spans
Heights up to 6m
Sealable joints to keep crops dry
Best for: Separating different grains or creating temporary bays.
When flexibility is important, freestanding walls make it easy to create temporary or movable dividing bays within a larger store.
Stable under their own weight – no fixings required.
Moveable with standard lifting equipment.
Height range to suit smaller or medium-sized stockpiles.
Reusable across harvest seasons.
Best for: New grain store builds where crop surcharges need to be isolated from the steel frame.
Cast directly into a new floor slab, these walls support crop loads without depending on the building’s frame.
Toes cast into slab for permanent strength
Reduces the size and cost of steelwork in construction
Seven height options with matching corners
Designed to retain grain at its natural angle of repose
Best for: Large stores with high surcharges and taller wall requirements.
Heavy-duty versions of the cast-in wall, featuring a thicker profile and higher height options, up to 5 metres.
Available in 150mm, 180mm, and 280mm thicknesses
Lengths from 3m to 6.5m, including 15ft and 20ft spans
Heights up to 6m
Sealable joints to keep crops dry
Best for: Adding grain storage capacity to existing sheds.
A retrofit option for existing buildings where foundations are already in place.
Fixed with a resin anchor system and grouted to protect fixings.
Option to reverse the toe to protect against plant damage.
Heights up to 5m.
Installed directly onto prepared concrete foundations or reinforced floor slab.
Best for: Temporary or secondary grain storage areas.
Quick to install and highly versatile, Allegro® blocks are less common for grain but ideal for temporary storage solutions.
Modular system with spreader and capping blocks.
Easily relocated for flexible use.
No fixings – rely on unit weight for stability.
Suitable for lower-capacity stockpiles.
William Stubbs - EJ Stubbs & Son
What to Consider Before You Build a Grain Store
- Wall Height, Thickness & Grain Pressure – Grain behaves differently from other bulk materials; it settles at its natural angle of repose and exerts uneven pressure on the wall. Select panel or wall thickness based on the expected stockpile height: 150mm or 180mm for standard grain loads, and 280 mm for taller or heaped stores. Fixed systems (cast-in or bolt-down) retaining walls also offer high storage capacity.
- Moisture Control & Joint Sealing – Keeping grain dry is essential. Joints between panels should be sealed with a cleanroom-compatible mastic such as Sikaflex® PRO-3 to prevent moisture ingress and cross-contamination between bays. Cast-in systems can use hydrophilic strips where watertightness is required.
- Protecting Your Building Frame – Decide early whether the wall should be connected to the steel structure or kept separate. Cast-in and HD cast-in walls are designed to support loads through the floor slab, keeping the building frame free of lateral forces. This can reduce steel sizes, simplify the design, and improve the lifespan of your structure.
- Steelwork Spacing & Panel Compatibility – Prestressed panels are designed around standard agricultural steel centres, usually with 15ft or 20ft spans. Ensuring the steel posts or RSJs (Rolled Steel Joists) are positioned accurately keeps installation quick and prevents on-site adjustments. Panels can be slotted into the web of the steel frame or attached to the exterior face, depending on your storage layout.
- Foundation Types & Base Levels – Your choice of walling system determines the foundation approach: Horizontal panels require pad foundations and steel stanchions. Bolt-down walls need a reinforced slab for resin anchors and grout. Cast-in and HD cast-in walls are cast into the slab, providing permanent stability. Level foundations ensure the wall line remains true and grain is stored safely.
- Access for Machinery & Handling Equipment – Grain stores must provide space for loaders, telehandlers, and trailers. Consider turning areas, wall toe direction, and the risk of accidental impacts. Reversing the toe on bolt-down units helps prevent machinery damage inside the bay.
- Flexibility for Multi-Crop Storage – If you need to separate different grains or create temporary bays, freestanding retaining walls or Allegro® blocks provide layout flexibility. Permanent stores are better served by cast-in or panel systems, but temporary dividers can help with crop rotation and seasonal adjustments.
- Long-Term Durability & Cleanability – Grain stores need smooth, easily cleaned wall surfaces to maintain hygiene. Precast walls provide consistent mould-finished surfaces and a long service life, with options for additional reinforcement cover if the store is situated in coastal areas exposed to sea spray.
Precast Concrete Grain Store Questions We Get All The Time
Panels and walls can be constructed up to 6m high. Depending on the product type, grain can also be stored above this level at its natural angle of repose.
Yes, we recommend sealing with a Cleanroom® suitable mastic such as Sikaflex® PRO-3. This helps keep crops dry and prevents contamination between bays.
Freestanders are ideal for temporary bays or dividing different crops, but for large-scale or long-term storage, fixed solutions like panels or cast-in walls are better.
Yes, cast-in and HD cast-in walls transfer loads directly into the floor slab. This means your steelwork only needs to support the building, not the weight of the stored grain.
Walls are designed to retain grain, not withstand repeated heavy impacts. With care and by reversing bolt-down toes where possible, walls will withstand day-to-day loading and vehicle use.
Yes, but they’re more suitable for temporary or overflow storage. For long-term use, fixed systems provide better load capacity and crop protection.