Kota Black Limestone Circle – Bold Charcoal Natural Stone Feature (20–30mm Calibrated)

Create a sleek, modern garden feature with our Kota Black Limestone Circle, crafted from premium Indian limestone and ideal for patios, courtyards, and landscaping focal points. With its deep charcoal to dark grey tones and smooth riven finish, this limestone circle delivers a sophisticated contrast that works beautifully in both contemporary and traditional outdoor spaces.

Available in a choice of sizes — with or without a squaring-off kit — this versatile feature can be used as a standalone circle, central seating area, or integrated into a larger paved space. Each stone is calibrated to 20–30mm, ensuring strength, consistency, and easy installation.

Available Options:

• 1.8m² Kit – Centre + 2 Rings (includes squaring-off kit)

• 2.6m² Kit – Centre + 3 Rings (excludes squaring-off kit)

• 2.85m² Kit – Centre + 3 Rings (includes squaring-off kit)

Why Choose Our Kota Black Limestone Circle?

✔ Bold Black & Charcoal Tones – A striking finish for standout garden designs
✔ Versatile Circular Design – Perfect for modern patios, courtyards & seating areas
✔ Optional Squaring Kit – Seamless integration into larger layouts
✔ Naturally Riven Surface – Subtle texture for added grip and character
✔ Durable Limestone – Hardwearing and suitable for all weather conditions
✔ 20–30mm Calibrated Thickness – Easy to install with a consistent finish

In Stock & Ready for Nationwide Delivery

Whether you’re refreshing a small courtyard or designing a full garden feature, our Raj Green Indian Sandstone Circle kits offer natural charm, long-lasting performance, and flexible design options.

✅ Trade Discounts Available
✅ Nationwide Fast Delivery
✅ Expert Advice from Our Team – Just Ask!

Natural Colour Variation in Kota Black Indian Limestone

Kota Black limestone offers a deep black base with subtle tonal movement, which can include slate-like greys and occasional light veining. As a natural material, the stone may feature minor markings or texture shifts, adding to its unique appeal.

Please note: Limestone naturally lightens over time when exposed to the elements. To help preserve the rich dark finish, we recommend applying a colour-enhancing sealer shortly after installation.

Kota Black Indian Limestone – Colour Variations in Wet & Dry Conditions

• When Dry – Expect a charcoal-grey appearance with a matte finish. The colour can appear lighter and more muted as the surface weathers over time.
• When Wet – The stone transforms into a deep black with a clean, bold finish, showing off its texture and subtle sheen.

To retain this dramatic, wet-look finish all year round, a suitable natural stone sealer can be used

Technical Specifications

For full details on stone type, origin, sizes, weight, coverage, and pack contents, please refer to the technical specification table below. This information ensures you have everything you need to plan your project accurately.

Step-by-Step Guide to Laying a Patio

How to Lay a Stone Paving Circle – Step-by-Step Guide

Installing a stone paving circle is a great way to create a beautiful focal point in your garden or patio. Whether you're using it as a standalone feature or incorporating it into a larger paved area, this guide will walk you through each step of the process to ensure a clean, long-lasting finish.

✅ What You’ll Need:

• Your chosen stone circle kit (centre + rings, with or without squaring-off kit)

• MOT Type 1 sub-base material

• Sharp sand and cement for mortar (typical mix 4:1)

• String line and centre peg (for layout)

• Priming slurry (optional but recommended)

• Spirit level

• Rubber mallet

• Grout or jointing compound

🪨 Step 1: Prepare the Base

1. Mark out the area using the circle size as a guide. Use a peg and string line to mark a perfect circle.

2. Excavate to a depth of approx. 150–200mm, depending on ground conditions.

3. Add and compact 100–125mm of MOT Type 1 hardcore to form a solid sub-base.

4. Ensure the area is level, with a slight fall away from the centre for drainage (typically 1:60).

⚙️ Step 2: Dry Lay & Plan Your Layout

1. Dry lay the full circle before fixing to ensure correct spacing and placement.

2. Start with the centre piece, then work outwards in rings.

3. If using the squaring-off kit, decide how you want it to align with existing paving or garden features.

🧱 Step 3: Lay the Paving Circle

1. Mix a mortar bed (4 parts sharp sand to 1 part cement) to a workable consistency.

2. Begin with the centre stone, laying it on a full mortar bed around 30–40mm thick.

3. Use a priming slurry on the back of each piece to improve adhesion (especially recommended for smoother stone).

4. Work outwards, laying each ring of stones one at a time, using a rubber mallet to level and position each slab.

5. Maintain consistent joints between each stone (typically 10–15mm).

🧽 Step 4: Jointing & Finishing

1. Allow the paving to set for 24–48 hours before jointing.

2. Use a suitable jointing compound or mortar to fill gaps between the stones.

3. Clean off excess grout and rinse the surface thoroughly before it dries.

🔲 If Using a Squaring-Off Kit:

• Lay the squaring-off pieces after the full circle is complete and set, ensuring they line up neatly with the surrounding paving.

• Continue your patio from these squared edges for a seamless finish.

🛠️ Top Tips:

• Always check your levels and alignment with a string line or spirit level as you go.

• Wear gloves and safety goggles when mixing mortar or using tools.

• For best results, lay on a dry day above 5°C and avoid heavy rain for 48 hours after installation.

👷 Need Help?

Our team is happy to offer guidance on laying your Raj Green, Kandla Grey, or other natural stone circle kits. Just give us a call or use the live chat!

How to Clean & Maintain Indian Sandstone

To keep your Indian Sandstone paving looking its best, regular maintenance is key. Sweep away debris to prevent dirt build-up and clean periodically with a mild soapy water solution or a specialist stone cleaner. Avoid using harsh chemicals or pressure washers at high settings, as they can damage the stone’s surface. For long-term protection, consider applying a breathable sealant to help resist stains and enhance colour retention. Over time, natural weathering will add character, but with proper care, your sandstone will remain a beautiful feature in your outdoor space for years to come.

Need Help? We're Here to Assist!

Choosing the perfect paving or stone products for your garden project is an important decision, and we're here to help! Whether you’d like advice on colours, sizes, installation, or suitability, our expert team is ready to assist.

💬 Chat with us online for quick answers

📞 Call us for expert guidance - 01282 860571

📧 Email us with your project details - hello@stonepaving.co.uk

No question is too big or small—get in touch and let us help you make the right choice for your outdoor space!