Aggregates

Three sizes of quarry-graded crushed stone — from structural concrete to fine finishing work.

3 Grades Available

The Right Stone Size
for Every Application

All three grades come from approved quarries and are sized and washed before dispatch. Order one grade or combine multiple grades in a single delivery.

¾″

19mm

Coarse Aggregate

The standard structural grade. Used in reinforced concrete slabs, columns, beams, retaining walls, and foundations. Offers maximum strength and durability in heavy-load applications.

Structural concrete
Foundation slabs
Retaining walls
Column and beam work
Order This Grade
Coarse Aggregate
¾″ · 19mm
⅜″

10mm

Medium Aggregate

Versatile mid-range size. Commonly used in finer concrete mixes, drainage beds under slabs, and backfill layers around pipes and utilities.

Drainage layers
Fine concrete mixes
Pipe bedding backfill
Kerbing and paths
Order This Grade
Medium Aggregate
⅜″ · 10mm
3/16″

5mm

Fine Aggregate

The finest grade we carry. Ideal for finishing layers, decorative concrete, pool surrounds, and any application requiring a smooth, compactable surface.

Finishing layers
Decorative concrete
Pool surrounds
Grouting & screeds
Order This Grade
Fine Aggregate
3/16″ · 5mm

Grade Comparison

Grade Size Best For Strength
¾″ 19mm Structural concrete High
⅜″ 10mm Drainage & fine mixes Medium
3/16″ 5mm Finishing & screeds Fine

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