Black Basalt

Deep, intense black defines this sophisticated volcanic stone tread. The fine, dense composition delivers exceptional hardness and abrasion resistance, making it ideal for high-traffic staircases and outdoor applications. The textured surface ensures reliable slip resistance in all weather conditions, while the stone’s natural strength guarantees enduring performance. Bring timeless elegance and uncompromising durability to your project with this premium black basalt tread.

Applications: Paving - Plaza - Pool Coping - Stairs
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Origin

Vietnam, China, Mongolia

Color

Deep, uniform black with fine dense grain

Available Finishes

Flamed, Polished, Honed, Bush-Hammered, Brushed

Compressive Strength

280-380 MPa

Water Absorption

0.1-0.2%

Density

2900-3100 kg/m³

Recommended Use

Stair treads, entryways, patios, garden steps, exterior paving, high-traffic areas

Key Properties

Frost-resistant, extremely durable, slip-resistant, acid-resistant, low maintenance, excellent weather resistance

  • 15 x 35 x 50 cm
  • 15 x 35 x 80 cm
  • 15 x 35 x 100 cm
  • 15 x 35 x 120 cm
  • 15 x 35 x 150 cm
  • Custom sizes are available upon request
the reidstone way
Quality Control
Quality
Control

Every order is vigorously inspected to meet your specific project requirements.

Export Grade Wood Crates
Export Grade
Wood Crates

Packed in durable ISPM-15 wooden crates for maximum protection.

Label And Secure
Label
& Secure

Every crate is securely packed and labeled with the required shipping marks.

Container Loading
Container
Loading

Carefully loaded and secured to ensure safe transport worldwide.

FAQ

What sets Black Basalt apart from Grey Basalt for stair treads?

Black Basalt offers even higher compressive strength (280–380 MPa vs. 250–350 MPa) and lower water absorption than Grey Basalt, alongside a deep, uniform black color instead of charcoal-grey. It's the strongest tread option in our basalt range, suited to the most demanding applications.


What finish is used on Black Basalt stair treads?

Black Basalt treads are commonly finished with flamed, waterjet, and brushed treatments, combining reliable slip resistance with a refined surface texture. Polished, honed, and bush-hammered finishes are also available for interior applications or different aesthetic preferences.


Is Black Basalt suitable for exterior, high-traffic staircases?

Yes. With water absorption of just 0.1–0.2% and outstanding abrasion resistance, Black Basalt is well suited to exterior staircases, entryways, and high-traffic public areas that need to perform under heavy, repeated use across all seasons.


Does Black Basalt require any special maintenance?

Black Basalt is low-maintenance and acid-resistant, needing only routine cleaning to maintain its deep black appearance over time. Its combination of strength and minimal upkeep makes it a practical long-term choice for demanding commercial staircases.


Where is Black Basalt sourced from?

Black Basalt is sourced from Vietnam, China, and Mongolia, regions known for producing dense, high-strength volcanic stone. Sourcing from multiple regions within this network helps maintain consistent supply and quality across large tread orders.