What is Type 2 Sub-base?
Type 2 sub-base (SHW 804) is a professionally blended limestone aggregate combining Type 1 material with scalpings to create a versatile foundation product. Conforming to BS EN 13285 standards, this sub-base provides reliable support for pathways and lighter-duty driveways, offering a middle ground between premium Type 1 and economical scalpings.
Technical Specifications:
- Standard: SHW Clause 804 compliant
- Grading: Blended 0-40mm aggregate
- Composition: Type 1 + selected scalpings
- Certification: BS EN 13285 unbound mixtures
Type 2 vs Type 1:
- Type 2: More economical for light-duty applications
- Type 1: Superior for heavy traffic and commercial use
- Cost Difference: Type 2 typically 15-20% less expensive
Type 2 vs Scalpings:
- Type 2: Certified specification material
- Scalpings: Budget option without certification
- Performance: Type 2 offers guaranteed consistency
Recommended Uses:
- Residential Pathways - Ideal for foot traffic areas
- Light-Use Driveways - Suitable for cars (not HGVs)
- Patio Bases - Stable foundation for paving
- Garden Buildings - Shed and greenhouse bases
- Temporary Access Roads - Construction site tracks
Not Recommended For:
- Heavy commercial traffic
- Areas requiring Type 1 specification
- Critical drainage applications
