Shop our range at Selhurst Timber of Type 1 sub base aggregate, widely used as a strong and reliable foundation material for construction and landscaping projects. Type 1 aggregate is commonly used for driveways, patios, paving and pathways where a stable and compacted base layer is required before laying concrete, paving slabs or tarmac surfaces. Suitable for groundworks and civil engineering projects, this crushed stone aggregate compacts easily to create a firm and durable base, making it a popular choice for builders, contractors and landscapers working on groundwork and surface preparation. Do you work on many construction projects? Sign up for a trade cash or credit account today for access to trade prices.