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Premium Helidon Sandstone Blocks for Domestic & International Supply
Our sandstone is precision-cut and graded to suit both structural and aesthetic applications — from landscaping to large-scale construction. We offer a range of sizes and grades to meet the needs of both local builders and international buyers. Every block is carefully sawn at our Helidon quarry, preserving the natural beauty and integrity of Australian sandstone in every order.
Our Products
A-Grade Sandstone Blocks – 6 Sawn Sides
Perfect for precision builds, formal landscaping, and commercial stonework. Our most refined product — fully sawn on all six sides for a clean, uniform finish. These blocks are ideal for projects that require straight lines and a polished look, including retaining walls, public infrastructure, and high-end construction.
Available Sizes:
1000 x 600 x 600 mm
1000 x 500 x 500 mm
1000 x 400 x 400 mm
Tolerances: ±40mm (height & width), Call us for pricing and vailability.
A-Grade Sandstone Blocks – 5 Sawn Sides
Best suited for structural use where one natural face is visible These 5 sawn side sandstone blocks offer a smooth, professional finish on most faces, while leaving one natural side exposed — perfect for walls, facades, and landscaping where a balance of clean and natural textures is needed.
Available Sizes:
1000 x 600 x 600 mm
1000 x 500 x 500 mm
1000 x 400 x 400 mm
Tolerances: ±40mm (height & width), Call us for pricing and vailability.
Call NowCall NowB-Grade Premium Sandstone – 4 to 5
Sawn Sides
An economical option for large projects that still require a tidy look. Our B-grade premium sandstone blocks are sawn on four to five sides and are a great choice for bulk landscaping, structural retaining walls, and commercial builds where aesthetics matter but budget is a consideration.
Available Sizes:
1000 x 600 x 600 mm
1000 x 500 x 500 mm
1000 x 400 x 400 mm
Tolerances: ±40mm (height & width), Call us for pricing and vailability.
B-Grade mixed blocks – 2to 4 Sawn Sides
Perfect for rustic walls, backfill, and cost-effective stone supply. These B-grade mixed sandstone blocks come with 2 to 4 sawn faces and are ideal for projects where function is more important than finish. Great for structural support, wall cores, or rustic aesthetics.
Available Sizes:
Length: 600 - 1000 mm
Height/Width: 400 - 600 mm
Call us for pricing and availability.
Blocky Random
Sandstone
Natural, irregular sandstone blocks for landscaping and garden features. Our random sandstone blocks are perfect for informal walls, edging, and rustic-style builds. Each piece varies in shape and size, preserving its natural look straight from the quarry.
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Size Range:
300–600 mm (varied)
Call us for pricing and availability.
Bulk Orders & Global Export
At GSI, we make it easy for commercial clients to source premium sandstone at scale. Our bulk ordering and export process is designed to ensure seamless coordination from quarry to delivery — whether you're developing locally or building abroad.
we provide:
Bulk sandstone for commercial projects
Custom sizing and cutting
Export packaging and documentation
Ongoing supply agreements for large developments
Contact Us
Our team of experts is here to support your project from concept to completion. We offer personalized consultations to help you find the perfect sandstone solution for your needs. Whether you require bulk supply or specialized sandstone products, GSI is ready to deliver worldwide.
Call us
Got a question? We are just a all
away.
+0492 275 555
Visit us
GSI’s helidon sandstone - Proudly
Quarried on-site at
Lot 1308 Paradise Creek Rd, Murphys
Creek QLD 4352, Australia
Email us
Reach out via Email- quick replies, real people
Admin@gsiaustralia.com
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