C20 / GEN 3 Concrete Lincolnshire
C20 / GEN 3 concrete supplied and delivered across Lincolnshire. Suitable for domestic slabs, garden paths and light-use applications. No minimum order.
Same-Day
Delivery Available
C20–C45
All Grades Supplied
BS EN 206
Quality Certified
Free
Quote on Request
C20 / GEN 3 Concrete in Lincolnshire
C20 (also specified as GEN 3 to BS 8500) is a general-purpose concrete suitable for domestic and light-duty applications. It has a characteristic compressive strength of 20 N/mm² at 28 days. It is one of the most widely used grades for non-structural domestic work.
Typical Uses for C20 / GEN 3
- Domestic ground-floor slabs and oversite concrete
- Garden paths, patios and paving bedding
- Kerb and step bedding
- Infill and mass concrete where structural strength is not required
- Domestic garage floors (light vehicles)
Key Properties
- Characteristic strength: 20 N/mm² at 28 days
- BS 8500 designation: GEN 3
- Exposure class: XC1 (dry or permanently wet)
- Max aggregate size: 20mm (standard)
- Slump (standard): S2–S3
Is C20 Right for My Project?
C20 is ideal for light domestic applications where structural loading is minimal. For driveways with regular vehicle use, we would typically recommend C30 or higher. For house foundations, we recommend a minimum of C25 / ST2.
Not sure which grade you need? Give us a call. Our team will advise based on your project.
Rated Excellent by Our Customers
"Ordered 4m³ of ready mix for a driveway and had it delivered the same day. The driver was spot-on and the concrete was exactly the right mix. Will definitely use again."
James T.
Grimsby · February 2026
"Superb service from start to finish. Got a quote over the phone in minutes and delivery was bang on time. Volumetric was perfect — no wastage at all."
Sarah M.
Lincoln · January 2026
"Used Blue Brick for a shed base and couldn't be happier. Helpful, knowledgeable team and the price was competitive. Good local firm who actually answer the phone."
Dave H.
Louth · January 2026