Delivering Maritime Solutionsand Quality Aggregatesfor New ZealandersSince 1904

We are McCallum Bros, a New Zealand company owned and run by the McCallum family since 1904. For more than 120 years we have supplied sand and aggregates, fully crewed commercial vessels and road transport for New Zealanders.

What we do

Fully crewed commercial vessels moving cargo around New Zealand, and specialist marine work carried out by our own vessels and experienced crews.Learn more
Quarry products from Cambridge Quarry and Red Rock, marine sand from the Kaipara, and oyster grit from our sister company, Clevedon Coast Oysters.
Learn more
Integrated road transport connecting our marine and quarry operations to customers across the North Island.
Learn more
Shipping to and from the Chatham Islands, with sailing schedules, bookings, biosecurity information and community updates.
Learn more

Our fleet

Our diverse fleet includes motorised landing craft, dredgers, tug and barges, a bulk cement barge and livestock carriers.

Enquire about charter

William FraserLanding craft & dredger

KapuaLanding craft

Acheron IIITug & barge

See all vessels →

More from McCallum Bros

Products

Te Ākau Bream Bay

Our Story

Read about our approach to sustainability

Quarry Products

Red Rock
Karamuramu Island

Red chip has been used for asphalt surfacing since the early 1900s and is part of many Auckland landmarks, from central city buildings to walkways in the region’s parks.

Quarried at our Karamuramu Island Quarry in the Hauraki Gulf, which is made up entirely of chert (jasper). Exceptionally strong, with excellent abrasion resistance.

ConcreteLandscapingRoadingIndustrial
Order and enquiries
Address
747 Rosebank Road, Avondale, Auckland
Delivery
Auckland region, other regions by arrangement
1904
Family business since
10
Grades
Early 1900s
Used for asphalt surfacing since
Online Store

Order online.

Order and pay for Red Rock deliveries online. Our online store is coming soon. In the meantime, call or email us to place an order.

Online store coming soon

To order now, contact our sales team on (09) 828 5202 or email sales@mccallumbros.co.nz.

Email an Order
Our Products

Our products.

Every Red Rock grade we supply and what it’s best used for. Not sure what you need? Give us a call and we’ll point you in the right direction.

Concrete and driveways

Our red aggregate forms the distinctive exposed aggregate pavements in heritage areas of Auckland city and the shoulders of Auckland’s motorways. It has been popular for driveways and concrete paths for decades, often reapplied to match existing concrete or to add a warmer hue than standard grey. Red Rock is light and strong, produces durable hard concrete, rates 8 on the Mohs scale and resists chemical activity.

Red Rock exposed aggregate path edged with plantsRed Rock exposed aggregate paving outside a building
SC20/10 (Screened 20-10mm)
Concrete aggregate

SC20/10 (Screened 20-10mm)

Used for loose metal driveways and as the coarse aggregate in the manufacture of 20mm concrete.

Size20 to 10mm, screened
Used for
Loose metal driveways20mm concrete
SC 10/5 (Screened 10-5mm)
Concrete aggregate

SC 10/5 (Screened 10-5mm)

Used for loose metal driveways and as a coarse aggregate in the manufacture of 10mm concrete.

Size10 to 5mm, screened
Used for
Loose metal driveways10mm concrete
AP4
Fine aggregate

AP4

Used as the fine component in concrete plus for bedding applications including paving and plastering.

Used for
ConcretePaving beddingPlastering
CM20
Concrete mix

CM20

A 20mm concrete mix that does not contain sand or cement. This has been designed to ready mix specifications to meet a general 20MPa strength.

StrengthGeneral 20MPaContainsNo sand or cement
Used for
20mm concreteReady mix
CM10
Concrete mix

CM10

A 10mm concrete mix that does not contain sand or cement. This has been designed to ready mix specifications to meet a general 20MPa strength.

StrengthGeneral 20MPaContainsNo sand or cement
Used for
10mm concreteReady mix

Landscaping and paths

Red Rock is perfect for residential, commercial and industrial landscaping and gives a unique, bright finish. Use it for garden pathways, pool surrounds, roofing tiles and fireplaces, to name a few.

Red Rock path through a garden lawnRed Rock driveway beside a lawnRed Rock path curving past grey river stones
SC5
Landscaping

SC5

Often used for pathway surfacing.

Used for
PathwaysGarden surfacingLandscaping

Roading

Red Rock aggregates have been used in roading for many years, on roundabouts, motorway edging, traffic islands and cycleways. The roads of Pauanui have been surfaced with McCallum chip for more than 20 years, and still are today.

Red chip seal on a motorway shoulderChip spreader laying red chip seal
Grade 3
Chip seal

Grade 3

A coarse roading aggregate used in conjunction with Grade 5 as red chip seal.

Pairs withGrade 5
Used for
Red chip sealRoundaboutsTraffic islands
Grade 4
Chip seal

Grade 4

A coarse roading aggregate used in conjunction with Grade 6 as a red chip seal.

Pairs withGrade 6
Used for
Red chip sealMotorway edgingCycleways
Grade 5
Chip seal

Grade 5

The fine component of a red chip seal with a Grade 3 base.

Pairs withGrade 3 base
Used for
Red chip seal
Grade 6
Chip seal

Grade 6

The fine component of a red chip seal with a Grade 4 base.

Pairs withGrade 4 base
Used for
Red chip seal

Industrial applications

Because of its colour and high silica content, McCallum red chip is used in a number of industrial applications.

Red Chip for Roof Tiles
Industrial

Red Chip for Roof Tiles

Our most common industrial use is surfacing decromastic roof tiles. The chip is dried, crushed and screened to a consistent size, then glued to the tile for sale in New Zealand and overseas.

Used for
Decromastic roof tilesIndustrial surfacing
Good to know

Ordering & delivery.

We can provide supply and delivery quotations to your site. Get in touch for a quote on your order.

Supply and delivery quotes
Tell us the product, volume and site address and we’ll quote supply and delivery.
Delivery
Red Rock is available throughout the Auckland region, and in other regions by arrangement.
Account customers
Regular customers can apply for a trade account. Contact us for an application form.