Indian sandstone paving: a buying guide for UK and overseas buyers
Indian sandstone is one of the most widely used natural paving stones in British gardens and is exported to many other countries. If you are a landscaper, merchant or importer, this guide explains the names, finishes and sizes you will meet, the basics of laying and sealing, and how an order from India works.
- Varieties
- Finishes
- Calibrated vs hand-cut
- Sizes
- Laying and sealing
- Ordering from India
Why Indian sandstone is so widely used
Sandstone is a sedimentary rock that splits naturally along its layers, which gives the familiar riven surface. India, and Rajasthan in particular, has large deposits in a wide range of colours. The stone is workable, frost-tolerant enough for garden use in many climates when laid correctly, and offers a natural look that concrete products try to copy.
Because it is a natural material, no two slabs are identical. Colour, veining and surface texture vary within a single crate. Buyers who expect this are usually pleased with the result. Buyers who expect factory uniformity should look at sawn finishes and the more consistent varieties.
Common varieties and their colours
Trade names are not standardised, and the same stone can be sold under more than one name. Always confirm with photos of the actual material, taken dry and wet.
| Trade name | Typical colour | Notes |
|---|---|---|
| Raj Green | Green-grey with brown and buff tones | A popular all-round garden paving stone |
| Kandla Grey | Mid to light grey | Fairly consistent colour, suits modern schemes |
| Autumn Brown | Mixed browns with plum and tan | Warm, varied appearance |
| Modak | Pinks, oranges and buff | Strong colour variation between slabs |
| Mint or Fossil Mint | Cream to pale yellow, often with fern-like markings | Light stone that shows marks more readily |
| Camel Dust or buff | Sandy beige | Soft, neutral tone |
| Teakwood | Beige with brown wood-like bands | Usually supplied sawn to show the pattern |
| Rainbow | Bands of purple, red, cream and brown | Normally sawn and honed |
| Sagar Black | Dark grey to charcoal | Darkens further when wet or sealed |
Surface finishes
Riven (natural)
The stone is split along its natural layers, leaving a gently uneven, textured face. This is the classic garden paving finish and gives good grip.
Sawn and honed
Cut by machine on all faces and ground smooth. Gives a flat, contemporary surface with crisp edges and shows the colour pattern clearly.
Sandblasted
A sawn surface blasted to a fine, even texture. Lighter in tone and good for grip.
Tumbled
Slabs or setts are tumbled to soften the edges and corners, giving an aged look that suits traditional properties.
Brushed
The surface is brushed to a smooth, slightly undulating feel, sometimes described as antique or leather finish.
Calibrated or hand-cut?
This is one of the first questions a supplier will ask. Hand-cut paving is split and dressed by hand. The top is riven, the edges are chiselled and the thickness varies from slab to slab and even within one slab. The installer has to adjust the bedding for each piece.
Calibrated paving is passed through a machine that grinds the underside so that every slab has close to the same thickness. The top face can still be riven. Calibrated slabs are quicker to lay, give a more even finish, and make better use of the weight allowance in a container because there is less excess stone.
Edges are a separate choice. Hand-cut or hand-dressed edges are slightly irregular and need a wider joint. Sawn edges are straight and allow narrower, neater joints. A common specification for garden paving is a riven face, calibrated thickness and hand-cut edges.
Sizes and packs
For the UK market, paving is usually supplied in metric sizes with a nominal joint included. Many merchants sell mixed-size packs, often called patio or project packs, made up of four sizes that fit together in a random pattern. Single-size packs are used for regular layouts.
- Typical mixed pack sizes: 900 x 600 mm, 600 x 600 mm, 600 x 290 mm and 290 x 290 mm
- Single sizes such as 600 x 600 mm, 900 x 600 mm and 600 x 300 mm
- Larger formats for modern designs, usually in sawn finishes
- Setts and cobbles in small formats such as 100 x 100 mm and 200 x 100 mm for edging and driveways
- Matching items: circles, stepping stones, bullnose steps, copings and walling
- Other markets may prefer different sizes, including inch-based formats, so state your requirement clearly
Laying basics
Local building practice and standards always take priority, and a professional installer should design the base for the ground and the load. These general points apply to most garden patios.
Prepare the base
Excavate, then lay and compact a suitable sub-base. The depth depends on ground conditions and whether the area will carry vehicles.
Plan the falls
Build in a gentle slope away from buildings so rainwater runs off and does not stand on the paving.
Use a full mortar bed
Bed each slab on a continuous layer of mortar. Spots or dabs of mortar leave voids that can cause rocking, cracking and marks showing through.
Prime the underside
Brushing a bonding slurry or primer on the back of each slab before laying improves adhesion and helps limit moisture and salts rising through the stone.
Mix slabs from several crates
Draw from different crates as you work, so that natural colour differences are spread evenly across the area.
Joint and clean
Fill the joints with mortar or a jointing compound suited to the joint width, and clean off residue before it sets on the face.
Sealing and care
Sealing sandstone is a choice, not a requirement. A good breathable, impregnating sealer can make the surface easier to clean and slow down staining and green growth, which is most useful on light-coloured stones. It may also deepen the colour slightly.
If you decide to seal, wait until the paving is fully dry and any white bloom from the bedding, known as efflorescence, has had time to appear and clear. Sealing too early can trap moisture and marks under the sealer. Test the product on a spare piece first and follow the maker instructions.
For routine care, sweep regularly and wash with water and a stiff brush. Be careful with pressure washers at close range, which can damage joints and the stone surface, and with acid-based cleaners, which can cause discolouration on some sandstones.
How to order from India
Write a clear specification
Variety, finish, edge type, sizes, thickness, calibrated or not, quantity in square metres and the destination port.
Ask for photos and samples
Request pictures of current stock, dry and wet, and physical samples for a first order. Agree an acceptable range of colour variation.
Agree terms
Confirm the price basis, such as FOB or CIF, the payment terms, the production time and how the goods will be packed and labelled.
Check packing
Paving normally travels in strong wooden crates. Wood packaging for export should be treated and marked to the ISPM 15 standard. Ask for crate sizes and weights for your handling equipment.
Plan the container
Stone fills a container by weight, not by volume, so the load is capped well before the space runs out. Your supplier will advise how many square metres fit at your chosen thickness.
Inspect and ship
Ask for photos or a video of the finished goods and loading. The usual shipping documents are the commercial invoice, packing list, bill of lading and certificate of origin.
Frequently asked questions
Is Indian sandstone good for patios?
Yes. Indian sandstone is a popular patio material because it is hard-wearing, available in many colours and has a natural riven texture that gives grip. Performance depends on correct laying: a compacted base, a full mortar bed and proper drainage. Lighter colours show dirt and algae sooner and benefit from regular cleaning or sealing.
What is the difference between calibrated and hand-cut sandstone paving?
Calibrated paving has been machined on the underside so that all slabs are close to one thickness, which makes laying faster and more even. Hand-cut paving is split and dressed by hand, so thickness varies between slabs and the installer adjusts the bedding for each piece. Both can have a natural riven top surface.
Does Indian sandstone need to be sealed?
No, sealing is optional. Many patios are left unsealed and weather naturally. A breathable impregnating sealer can make cleaning easier and reduce staining, especially on pale stone. If you seal, do it only when the paving is completely dry and any efflorescence has cleared, and test on a spare slab first.
Which Indian sandstone colour is most consistent?
Greys such as Kandla Grey tend to be more even in tone than multi-coloured stones such as Modak or Rainbow, which vary strongly from slab to slab. Sawn finishes also look more uniform than riven ones. Every natural stone varies to some degree, so ask for photos of several slabs from the current lot.
How is sandstone paving shipped from India?
Slabs are stacked on edge in wooden crates, the crates are loaded into shipping containers and the containers travel by sea from an Indian port to the destination port. Because stone is heavy, the quantity per container is set by weight. The exporter prepares the invoice, packing list, bill of lading and certificate of origin.
Can I order a mix of colours and sizes in one container?
Usually, yes. A container can generally be made up of several varieties, finishes and sizes, as long as each crate is packed and labelled separately. Tell the supplier the split you need at the enquiry stage, since some combinations affect production time and how efficiently the container can be loaded.
How do I get a quote for sandstone paving from India?
Send your specification and destination port to Garage2Global Ventures Private Limited by WhatsApp on +91 88128 00000 or by email at info@garage2global.com. The company is based at 434, Transport Nagar, Kota, Rajasthan, and replies with price, lead time and photos. Include variety, finish, sizes, thickness and quantity in square metres.
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