Silo Sizes

Getting the size right before you commit to a silo is critical. Too small and you’re managing overflow or running out of capacity at the worst time of year. Too large and you’re carrying infrastructure you don’t need. Franklin Hodge manufactures Brice-Baker silos across a wide range, so there’s a practical option for most operations, from single-farm storage through to large commercial grain handling facilities.

What Size Silos Do You Offer?

We offer a wide range of silo sizes to accommodate different storage capacities. Our flat-bottom silos are available in sizes from 3 metres to 25 metres, while our hopper-bottom silos range from 3 metres to 12 metres. 

Both types are manufactured as part of the Brice-Baker galvanised steel silo range, with Franklin Hodge as the exclusive manufacturer. Every silo is built to order, so the size you select is matched to your site layout, storage volume requirements, and the grain or material being stored.

Flat-Bottom Silo Sizes

Flat-bottom silos are available in diameters from 3 metres to 25 metres, making them suitable for both smaller farm operations and large-scale commercial storage. 

The larger diameters in this range offer significant working volumes, with Brice-Baker silos capable of holding up to 11,888m³. For operations where long-term, high-capacity grain storage is the priority, flat-bottom silos in the upper end of this size range are typically the most appropriate choice. 

Key points on flat-bottom silo sizing: 

• Available from 3m to 25m diameter 
• Suitable for long-term, high-volume grain storage 
• Mechanical unloading equipment such as a sweep auger is required 
• Modular construction allows efficient transport and on-site assembly regardless of size 

Hopper-Bottom Silo Sizes

Hopper-bottom silos are available in diameters from 3 metres to 12 metres, with multiple discharge angles to suit different grain handling setups. 

The smaller footprint and gravity-discharge design make hopper-bottom silos a practical choice for temporary storage, wet grain holding ahead of drying, or operations where quick, straightforward unloading is a priority. 

Key points on hopper-bottom silo sizing: 

• Available from 3m to 12m diameter 
• Elevated frame design with cone-shaped base for gravity discharge 
• Multiple discharge angle options available 
• Well suited to shorter-term storage and faster-turnaround operations

Choosing the Right Size for Your Site

Silo size isn’t just about storage volume. It’s also about site footprint, foundation requirements, access for loading and unloading, and how the silo integrates with your existing grain handling infrastructure. Franklin Hodge’s engineering team can provide structural design advice to help you identify the right size and configuration for your operation. 

If you’re comparing flat-bottom and hopper-bottom options as well as size, our flat-bottom and hopper-bottom silos page covers the differences between the two designs in more detail. 

Discuss Your Silo Size Requirements with Franklin Hodge

Whether you’re planning a new installation or expanding existing storage capacity, our team can help you work through the sizing and specification. View the full Brice-Baker silos range, explore our silos page, or request a quote to get started. 

Frequently Asked Questions

What is the largest flat-bottom silo Franklin Hodge offers? 

Flat-bottom silos are available up to 25 metres in diameter, with working volumes of up to 11,888m³. 

What is the largest hopper-bottom silo available? 

Hopper-bottom silos are available up to 12 metres in diameter, with multiple discharge angle options. 

Can silo sizes be customised for specific site requirements? 

Each Brice-Baker silo is built to order. Franklin Hodge’s engineering team can provide structural design advice to ensure the silo is correctly specified for your site and storage needs. 

What is the smallest silo size available? 

Both flat-bottom and hopper-bottom silos start from 3 metres in diameter, making them suitable for smaller farm operations as well as larger commercial facilities. 

Does silo size affect the type of unloading equipment needed? 

For flat-bottom silos, mechanical unloading equipment such as a sweep auger is required regardless of diameter. Hopper-bottom silos discharge by gravity, so no sweep auger is needed.