Driveway sub-base Type 1

Type 1 (or DTp1) is the standard sub-base material for driveways. It is a well-graded crushed stone that compacts to a stable base. We supply and compact Type 1 in layers to the required depth and density.

The commercial value of resolving driveway sub-base type 1 early is fewer delays, clearer budgeting, and reduced repeat disruption.

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Situations where this applies

Teams usually investigate driveway sub-base type 1 when early warning signs start affecting reliability, compliance, or project timelines. This is often the point where decision makers move from observation into scoped technical action.

Common warning signs

The symptoms below are the most common triggers we see before diagnosis and repair planning.

• Type 1 or DTp1 specified
• Compaction in layers
• Correct depth for traffic
• Quality assured material
• Ready for laying course or surface

What the work typically involves

We use Type 1 to the correct depth and compact in layers. We leave a level, stable formation.

How this gets resolved

We deliver Type 1 sub-base to specification. We provide a solid base for your chosen surface.

What drives programme and budget

Cost and complexity usually depend on access constraints, total scope, existing condition, and whether related works need to be coordinated in the same programme window.

What the process looks like

We keep delivery structured so scope, sequencing, and sign-off remain clear.

1. Step 1: Initial assessment

   What this step delivers: Root cause and scope are confirmed.

2. Step 2: Method planning

   What this step delivers: Practical repair strategy is agreed.

3. Step 3: Delivery and verification

   What this step delivers: Work is completed and validated.