Singleton Stemming supplies quarry materials to businesses across the Hunter: aggregate, road base and subbase, specialty rock, sand and dust, and blast stemming for mines. It’s all sourced from our own quarry, Hunter Blue Metal, and trusted local suppliers across the Hunter.
We started in 2008 supplying blast stemming to Hunter Valley mines. Other customers began asking us to source other quarried and recycled materials, and the range grew from there.
What we supply
| Range | Products and sizes | Specs |
|---|---|---|
| Aggregate | Single size 7mm, 10mm, 14mm and 20mm. Blended 10/7, 20/14 and 32/63 | Concrete aggregate to AS 2758.1. Asphalt aggregate to AS 2758.5 |
| Road construction materials | DGB20 base course (20mm minus), DGS40 subbase (40mm minus), stabilised road base (20mm and 40mm), crushed rock (75mm), scalps, capping and fill ARRB Base and Subbase | TfNSW Specification 3051 (formerly RMS), or non-spec AUSTROADS ARRB SR41 |
| Specialty rock | Armour and large rock in 200/600mm, 400/600mm, 600/1m and 1m plus. Gabion rock and spalls in 63/150mm, 50/200mm, 75/150mm, 100/200mm and 100/300mm. Rail ballast | Rail ballast to ARTC specification, or non-spec |
| Sand and dust | Manufactured concrete sand and crusher dust in 5mm and 6mm. Quarry dust | Dust to current TfNSW specification (formerly RMS), or non-spec |
| Blast stemming | Tailored to the mine’s specification, size and the material being blasted | To the mine’s specification |
What a full range means for your job
Most jobs need more than one material. Buying them from one supplier means one team to ask. If what you need isn’t on our product list, our team can recommend the right material for your needs and source it for you.
Whatever you order from us, we’ll get it to your site. Standard stock ordered before 12pm the day before is generally on site the next business day. Materials are sold by the tonne with no minimum order, and delivered in rigid tippers and truck and dogs, with access to 50 to 60 tonne trucks, all GPS tracked.
Local, and what we mean by it
Local, for us, means the Hunter. Our reliable stock and local supply chain, built over years, ensures your projects stay on track. Sourcing from more than one quarry means we hold stock of every standard size and can keep supplying through wet weather, plant shutdowns and peak demand.
It also shapes how we source. We consider carbon emissions by looking at where materials come from: drawing from the nearest supplier, taking the shortest transport route and maximising load weight whenever possible. Delivering in bulk reduces emissions too.
Natural crushed rock is our core range, and recycled material can be supplied on request.
Who we supply
We supply mines, civil contractors, builders and farms across Newcastle, Maitland, Lake Macquarie, Port Stephens, Cessnock, Singleton and Muswellbrook, and to mine sites and civil projects across regional NSW by arrangement. We also supply local councils and Transport for NSW, among others.
Call 1300 150 777 for a delivered price per tonne, or see the range: aggregate, road construction materials, specialty rock, sand and dust.
Frequently asked questions
Do you supply concrete aggregate to AS 2758.1?
Yes. Our concrete aggregate is supplied to AS 2758.1, from quarries with current test results. Grading and test certificates can be provided on request for specified projects.
Do you supply asphalt aggregate to AS 2758.5?
Yes. Our asphalt aggregate is supplied to AS 2758.5, from quarries with current test results.
What do the parts of AS 2758 cover?
AS 2758 covers aggregate and rock for engineering purposes. AS 2758.1 covers concrete aggregates, AS 2758.2 sprayed bituminous surfacing aggregates, AS 2758.4 gabion basket aggregates, AS 2758.5 asphalt aggregates and AS 2758.7 railway ballast.
What aggregate sizes do you supply?
We supply single size aggregate in 7mm, 10mm, 14mm and 20mm, and blended aggregate in 10/7, 20/14 and 32/63, for concrete, asphalt, sealing and drainage.
Can I get test certificates with my aggregate?
Yes. Grading and test certificates can be provided on request for specified projects. Tell us what the specification calls for when you order.
Do you supply TfNSW Specification 3051 base course and subbase?
Yes. Our base course (DGB20) is supplied to current TfNSW Specification 3051, formerly RMS, and our subbase (DGS40) to TfNSW Specification 3051 or as non-spec.
Do you supply stormwater drainage dust and aggregates to TfNSW R11?
Yes. Our stormwater drainage dust and aggregates are supplied to the TfNSW R11 Stormwater Drainage specification.
Do you supply local councils and Transport for NSW?
Yes. We supply local councils and Transport for NSW, among others.
What if the material I need isn’t on your list?
Our knowledgeable team can recommend the right material for your needs and source it for you if it’s not on our product list.
Where do your materials come from?
Our materials are sourced from our own quarry, Hunter Blue Metal, and trusted local suppliers across the Hunter.