Kota Black Limestone Setts

Sometimes adding a darker stone is all it takes to give a garden a bit more definition. Our Kota Black Limestone Setts are perfect for doing exactly that, whether you’re creating a border around your patio, laying out a pathway, or adding contrast between different areas of your outdoor space.

Despite the name, Kota Black isn’t one completely uniform shade. You’ll see a mixture of deep charcoal and softer dark grey tones running through the stone, with natural variation from one sett to the next. The colour also becomes noticeably deeper when wet, bringing out those darker shades and giving the stone a completely different character after rainfall.

The naturally riven surface adds texture without feeling too rough or heavy, so these setts work just as well in a contemporary garden as they do in a more traditional setting. Pair them with lighter grey or warmer sandstone paving for a stronger contrast, or use them alongside Kota Black limestone if you’d rather carry the same darker tones throughout the garden.

Using Kota Black limestone setts around your garden

One of the nice things about setts is that you don’t have to stick to straight lines or simple borders. Their smaller size gives you much more freedom to follow curves, edge pathways, separate paving from gravel or even create a feature within a larger patio.

Our Kota Black Limestone Setts are available in 100mm x 100mm and 200mm x 100mm sizes. The smaller square setts are really useful for tighter curves and more detailed layouts, while the longer option works particularly well when you want to create a neat border or pathway. You can use both sizes within the same garden too, which is a simple way to carry the same stone through different parts of your design.

As with any natural limestone, you should expect some differences in colour, texture and markings between pieces. Rather than everything looking the same, these little variations give the stone its character and help the finished area sit more naturally within the garden.

Order your Kota Black Limestone Setts

If you like the idea of using Kota Black setts but you’re still figuring out the finer details, give us a call. We’ve been supplying natural stone at Bridge Street Stone for over 30 years, and we’re always happy to help with things like choosing the right size, working out quantities or finding paving that will look great alongside them.

We offer fast UK delivery across our range, or you’re welcome to collect directly from our stoneyard if that works better for you. Trade discounts are also available on larger orders, so get in touch with our friendly team if you have any questions before ordering.

Natural Colour Variation in Raj Green Indian Sandstone

Raj Green Indian Sandstone is renowned for its beautiful blend of natural tones, ranging from soft greens and warm browns to gentle greys and sandy buff hues. As a natural stone, each slab is unique, with variations in shading and texture that add depth, character, and a truly organic look to any outdoor space. Over time, exposure to the elements may further enhance these natural variations, making every patio or pathway distinctive and full of charm. If you’re looking for a harmonious yet varied aesthetic, Raj Green Sandstone is a perfect choice, offering timeless appeal with an authentic, rustic finish.

Example of the colour variation with Raj Green Indian Sandstone

Raj Green Indian Sandstone – Colour Variations in Wet & Dry Conditions

Raj Green Indian Sandstone naturally changes in appearance depending on the weather. When dry, it displays a subtle blend of muted greens, browns, greys, and buff tones, giving a soft, earthy look. However, when wet, the colours deepen and become more pronounced, revealing richer greens, deeper browns, and enhanced variations that bring out the stone’s natural beauty. This dynamic colour shift is a key characteristic of natural sandstone, adding depth and interest to patios, pathways, and outdoor spaces. If you prefer a more consistent look, consider sealing the stone to help control how much the colours intensify when wet.

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

Creating a beautiful and long-lasting patio requires the right materials and a solid installation process. Follow our step-by-step guide to ensure a professional finish, using high-quality paving slabs, jointing compounds, and essential finishing touches available at Bridge Street Stone.

Step 1: Plan & Prepare the Area

Before starting, decide on the size, shape, and layout of your patio. Mark out the area using string lines or spray paint and ensure there’s a slight gradient for water drainage.

You’ll Need:

✔ Paving slabs – Browse our range of natural stone and porcelain paving
✔ Measuring tape & string line – For accurate planning
✔ Shovel & wheelbarrow – To clear the area

Step 2: Dig Out & Create the Sub-Base

Excavate the area to a depth of 150-200mm to allow for the base layers. Compact a 100mm layer of MOT Type 1 using a wacker plate to create a firm foundation.

You’ll Need:

✔ MOT Type 1 hardcore – Order high-quality sub-base material
✔ Wacker plate or compactor – Essential for a solid foundation

Step 3: Prepare the Bedding Layer

A mortar bed is needed to hold your paving in place. Use a mix of 4 parts sharp sand to 1 part cement, adding water until it reaches a firm, workable consistency. Lay the mortar to a depth of 30-50mm across the area.

You’ll Need:

✔ Sharp sand & cement – Shop high-quality materials
✔ Mixing tools – Cement mixer or bucket and spade

Step 4: Lay the Paving Slabs

Start laying the slabs from one corner, ensuring a consistent joint gap between each. Use a rubber mallet to tap them into place and check levels with a spirit level.

You’ll Need:

✔ Paving slabs – Explore our natural stone and porcelain paving
✔ Rubber mallet & spirit level – For precision placement

Step 5: Joint & Finish the Patio

Once the mortar has set (24-48 hours), fill the joints using a high-quality jointing compound or traditional sand and cement mix. Brush the compound into the joints and lightly spray with water to activate.

You’ll Need:

✔ Jointing compound or grout – Browse our range of easy-to-use paving grouts
✔ Soft brush & hosepipe – To apply and set the compound

Step 6: Add the Finishing Touches

Complete your patio with matching edging stones, decorative aggregates, or stone ornaments to enhance the overall design.

You’ll Need:

✔ Paving edgings & setts – Define your patio with stylish edging
✔ Decorative aggregates & stone ornaments – Browse finishing touches for your garden

Enjoy Your New Patio!

By following these steps and using high-quality materials from Bridge Street Stone, your patio will be both beautiful and long-lasting.

📦 Need materials? Explore our full range of paving, jointing compounds, aggregates, and finishing touches to complete your project.

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!