Which Concrete Grade
Do You Need?
Explore our C20 to C40 mixes — perfect for everything from garden patios to heavy-duty footings. Same-day delivery available across Greater Manchester.
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Pay For What You Use
Pick the Right Grade for Your Project
From patios to reinforced slabs, each concrete grade is designed for a specific task.
Use the guide below to compare strength, durability, and best-use cases — so you only order what you need.
C20
Driveways, shed bases, light domestic use.
Strength: 20 Newtons/mm2
- Economical
- Great for un-reinforced foundations
C25
Domestic floors, house footings, outdoor paving
Strength: 25 Newtons/mm2
- Ideal for patios and walkways
- Good all-rounder for small builds
C30
Reinforced paths, garages, industrial floors
Strength: 30 Newtons/mm2
- Stronger & more durable
- Often used in commercial settings
C35
Heavy-duty paving, load-bearing foundations
Strength: 35 Newtons/mm2
- High-strength structural work
- Withstands more pressure/load
C40
Agricultural yards, industrial use, reinforced slabs
Strength: 40 Newtons/mm2
- Maximum strength
- Ideal for extreme use or wet conditions
Concrete Calculator
Find out how much concrete you’ll need for your job. Only pay for what you use – no over-ordering, no waste.
- you'll need aproximately of concrete
Specialist Concrete Mixes
Waterproof Concrete
Ideal for basements, swimming pools, and underground structures. Incorporates waterproofing admixtures.
Fibre-Reinforced Concrete
Improves tensile strength and crack resistance. Suitable for floors with high traffic loads.
Foamed Concrete
Lightweight and self-compacting. Used in trench fills, insulation, and void filling.
Self-Compacting Concrete (SCC)
Flows without vibration. Perfect for architectural applications where smooth finishes are essential.
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Why Choose Sheridan Concrete Manchester?
- Mixed fresh on-site - only pay for what you use
- Ideal for hard-to-access city sites
- Clean and professional service
- fast response from our Manchester based team
FAQs
What is the difference between C20 and C40 concrete?
C20 concrete is a lighter mix ideal for driveways and shed bases, while C40 is a high-strength option designed for reinforced industrial slabs and agricultural yards.
Which concrete grade should I use for my patio?
C25 is usually the best choice for patios — it offers a good balance of strength and affordability, especially for domestic use.
Can I use C30 concrete for commercial flooring?
Yes, C30 is often used in garages and industrial floors where additional strength and durability are required.
How do I calculate how much concrete I need?
Use our built-in concrete calculator. Enter your project’s width, length, and depth to estimate your required volume instantly.
Is C35 suitable for structural work?
Absolutely — C35 concrete is designed for high-strength applications such as load-bearing foundations and structural slabs.
What grade of concrete is best for wet or exposed environments?
C40 is engineered for maximum durability, making it perfect for exposed, wet, or extreme environments.
Can I get concrete mixed to my specification?
Yes, we mix all concrete fresh on-site to your specific needs, reducing waste and ensuring optimal results.