How to pick the best Indian sandstone without getting ripped off

Indian sandstone

Author Lee Axup

 

Date Published 29/09/2016

What is Indian sandstone

Indian Sandstone is a sedimentary rock that has been compressed over time.

 

It is made essentially of quartz grains cemented together.

The durability and strength of these rocks depend on the cementing material.

 

The best quality Indian sandstone for garden paving, should be of fine grain and uniform texture.

 

The colours of Indian sandstone depend on the mineral contents and impurities in the sand. Generally, the sandstone is available in red, beige, pink, green, grey, brown, yellow, mint, teak, and in rainbow colour.

 

The different grades of Indian stone

The best stone is sold as Firsts, and this tends to be very good quality suitable for all sorts of projects.

 

Increasingly, this stone is bought up by the 'brand name' suppliers such as Marshall's paving and Natural Paving for their premium ranges or for use on commercial projects where quality thresholds are higher or may even be governed by the British or European Standards.

 

Then comes the Seconds, which may not be as neatly finished, or is a less attractive type of stone, but is, generally speaking, more than adequate for the vast majority of patio projects.

 

This stone is often sourced by Brand name suppliers such as Marshalls and Natural Paving for their standard ranges. Because they understand that some of their customers are primarily concerned with afford ability and, as long as the quality is 'reasonable', don't worry too much about the stone being the very best, like the premium ranges.

 

Some of the 'seconds' rated stone will find its way into secondary processing plants, where a standard range stone can have its value uprated by being brushed or polished or honed. This extra process enhances the stone and moves the stone up to the mid-range level.

 

And then there's the Seconds Rejects, which varies enormously in quality, from 'not too bad' to 'truly abysmal'.

 

This grouping includes anything and everything that doesn’t make the two grades as mentioned above and should be avoided at all costs, find out later to see why.

 

Check out the video below about different grades of Indian sandstone

 

DOWNLOAD BROCHURE

 

Not all Indian stone was created equal.

Indian sandstone has become increasingly popular in the UK in recent years as garden paving or driveway paver's.

 

Due to its strength and versatility coupled with its natural beauty, Indian sandstone is often the chosen product with many homeowners to produce functional yet stylish spaces for family and social use.

 

Yet there are many hidden dangers with a significant proportion of the Indian sandstones available on the UK market today.

 

Many of the cheap Indian sandstones are soft, porous stones which are easier to process, making them cheaper, but not strong enough to withstand the harsh British climate.

 

So Marshall's and Natural paving the leading suppliers in Indian sandstone have their own stone standards.

 

What is the Marshall's Stone Standard?

The Marshall's Stone Standard mark gives our customers full assurances that all Marshall's sandstone exceeds the base technical levels outlined in the British Standard for design and installation, BS 7533-Part 12.

 

All Marshall's paving stones are repeatedly tested by an independent UKAS accredited laboratory.

 

The Marshall's Stone Standard sets minimum base criteria to which all our sandstone performs. These attributes are the most important technical factors that must be considered before choosing a stone for your pa project:

 

All sandstone sold by Marshall's will have a maximum Water Absorption of 1.7%

 

This figure tells you how porous the stone is. Sandstone with a water absorption percentage higher than 1.7% could go green within a matter of months, become slippery and be more susceptible to frost deterioration.

 

All Indian sandstone sold by Marshall's will have a flexural strength of no less than 12.9mpa.

 

The Flexural Strength of a stone gives an indication of how strong the stone is. The higher the number, the less chance it has of failing or delaminating once in-situ.

 

All sandstone sold by Marshall's will be frost resistant

 

If a stone loses strength or starts to fall apart when subjected to repeated frosts (an essential characteristic in the harsh British climate), then it isn’t fit for purpose.

 

The Marshall's Standard is a reduction of no more than 10% on the flexural strength of the stone after 56 freeze/thaw cycles and a visual inspection rating of ‘0’.

 

Any sandstone paving that doesn’t meet ALL these criteria may not be fit for purpose and could fail.

 

All Marshall's stone is CE marked and tested in accordance to BS EN 1341.

 

 

Natural Paving Stone Standards

Choosing a stone for use in construction is not all about the colour and texture. The suitability, durability and the longevity of the Indian stone for particular installations are also key factors.

 

The three icons on the diagrams below are on every page of their product brochure. So you can see which stone has what.

 


Sandstones with a higher water absorption have the tendency to go green.

 

Flexural Strength

 

 

The flexural strength of a stone gives an indication of how strong the stone is. The flexural strength is measured in megapascals (MPa). The higher the number, the less chance it has of failing or delaminating once in-situ

 

Frost Resistance

 

Frost can sometimes attack stone, but most are very resistant to it.

 

They measure this by testing the flexural strength of stones after a cycle of freezing and thawing a batch of samples.

 

They have graded their stones on the percentage difference between the maximum flexural strength test before freezing and the strength test after a repeated freezing.

 

Stones that are not acceptable for the UK market do not appear in their collection.

 

All Natural paving stone is also CE marked and tested in accordance to BS EN 1341.

 

DOWNLOAD BROCHURE

 

What can happen?

What can happen if you don’t install stone that complies with the Marshall's or Natural Paving Stone Standard?

 

As mentioned at the start the paving to avoid are the softer sandstones because they will start to go green very quickly.

 

These stones also have poor compaction between the sedimentary layers which could lead to the bedding planes separating and your stone starting to split and crack. Worse still, if moisture exploits the gaps in your stone, ice crystals can form and the surface of your stone could pop and come away in sheets.

 

 

All these issues could happen to your new patio installation in a matter of months if you choose the wrong stone.

 

And this is the reason why at Charles William paving & Landscapes we only use Marshalls and Natural Paving products.

 

DOWNLOAD BROCHURE

 

please feel free to share this post by clicking on any of the icons below

 

Areas We Cover

Anlaby

Beverley

Brough

Cottingham

Caves

Elloughton

Goole

Hessle

Howden

Kirk Ella

North Ferriby

Selby

Snaith

Swanland

West Ella

Charles William Paving & Landscapes Ltd

10 Union Place, Goole

East Yorkshire

DN14 6WE

Company Number 06696157

VAT Number  979 5046 67

Marshalls Member R01764

Indian sandstone
Indian sandstone

What is Indian sandstone

Indian Sandstone is a sedimentary rock that has been compressed over time.

 

It is made essentially of quartz grains cemented together.

The durability and strength of these rocks depend on the cementing material.

 

The best quality sandstone, for building purpose, should be of fine grain and uniform texture.

 

The colours of sandstone depend on the mineral contents and impurities in the sand. Generally, the sandstone is available in red, beige, pink, green, grey, brown, yellow, mint, teak, and in rainbow colour.

 

The different grades of Indian stone

The best stone is sold as Firsts, and this tends to be very good quality suitable for all sorts of projects.

 

Increasingly, this stone is bought up by the 'brand name' suppliers such as Marshalls and Natural Paving for their premium ranges or for use on commercial projects where quality thresholds are higher or may even be governed by the British or European Standards.

 

Then comes the Seconds, which may not be as neatly finished, or is a less attractive type of stone, but is, generally speaking, more than adequate for the vast majority of patio projects.

 

This stone is often sourced by Brand name suppliers such as Marshalls and Natural Paving for their standard ranges. Because they understand that some of their customers are primarily concerned with affordability and, as long as the quality is 'reasonable', don't worry too much about the stone being the very best, like the premium ranges.

 

Some of the 'seconds' rated stone will find its way into secondary processing plants, where a standard range stone can have its value uprated by being brushed or polished or honed. This extra process enhances the stone and moves the stone up to the mid-range level.

 

And then there's the Seconds Rejects, which varies enormously in quality, from 'not too bad' to 'truly abysmal'.

 

This grouping includes anything and everything that doesn’t make the two grades as mentioned above and should be avoided at all costs, find out later to see why.

 

Check out the video below about different grades of Indian Sandstone

 

DOWNLOAD BROCHURE

Not all stone was created equal.

Indian sandstone has become increasingly popular in the UK in recent years as a domestic patio or driveway product.

 

Due to its strength and versatility coupled with its natural beauty, Indian sandstone is often the chosen product with many homeowners to produce functional yet stylish spaces for family and social use.

 

Yet there are many hidden dangers with a significant proportion of the sandstones available on the UK market today.

 

Many of the cheaper sandstones are soft, porous stones which are easier to process, making them cheaper, but not strong enough to withstand the harsh British climate.

 

So Marshalls and Natural paving the leading suppliers in Indian sandstone have their own stone standards.

 

DOWNLOAD BROCHURE

 

What is the Marshalls Stone Standard?

The Marshalls Stone Standard mark gives our customers full assurances that all Marshalls sandstone exceeds the base technical levels outlined in the British Standard for design and installation, BS 7533-Part 12.

 

All Marshalls stones are repeatedly tested by an independent UKAS accredited laboratory.

 

The Marshalls Stone Standard sets minimum base criteria to which all our sandstone performs. These attributes are the most important technical factors that must be considered before choosing a stone for your patio or driveway project:

 

All sandstone sold by Marshalls will have a maximum Water Absorption of 1.7%

 

This figure tells you how porous the stone is. Sandstone with a water absorption percentage higher than 1.7% could go green within a matter of months, become slippery and be more susceptible to frost deterioration.

 

All sandstone sold by Marshalls will have a flexural strength of no less than 12.9mpa.

 

The Flexural Strength of a stone gives an indication of how strong the stone is. The higher the number, the less chance it has of failing or delaminating once in-situ.

 

All sandstone sold by Marshalls will be frost resistant

 

If a stone loses strength or starts to fall apart when subjected to repeated frosts (an essential characteristic in the harsh British climate), then it isn’t fit for purpose.

 

The Marshalls Standard is a reduction of no more than 10% on the flexural strength of the stone after 56 freeze/thaw cycles and a visual inspection rating of ‘0’.

 

Any sandstone paving that doesn’t meet ALL these criteria may not be fit for purpose and could fail.

 

All Marshalls stone is CE marked and tested in accordance to BS EN 1341.

 

DOWNLOAD BROCHURE

 

Natural Paving Stone Standard

Choosing a stone for use in construction is not all about the colour and texture. The suitability, durability and the longevity of the stone for particular installations are also key factors.

 

The three icons on the diagrams below are on every page of their product brochure. So you can see which stone has what.

 


Sandstones with a higher water absorption have the tendency to go green.
To help prevent this they recommend sealing with one of the Pavetuf Sealants.

 

Flexural Strength

 

 

The flexural strength of a stone gives an indication of how strong the stone is. The flexural strength is measured in megapascals (MPa). The higher the number, the less chance it has of failing or delaminating once in-situ

 

Frost Resistance

 

Frost can sometimes attack stone, but most are very resistant to it.

 

They measure this by testing the flexural strength of stones after a cycle of freezing and thawing a batch of samples.

 

They have graded their stones on the percentage difference between the maximum flexural strength test before freezing and the strength test after a repeated freezing.

 

Stones that are not acceptable for the UK market do not appear in their collection.

 

All Natural paving stone is also CE marked and tested in accordance to BS EN 1341.

 

DOWNLOAD BROCHURE

 

What can happen?

What can happen if you don’t install stone that complies with the Marshalls or Natural Paving Stone Standard?

 

All the softer sandstones will start to go green very quickly unless given expensive and often temperamental sealing treatments which have to be reapplied every year.

 

These stones also have poor compaction between the sedimentary layers which could lead to the bedding planes separating and your stone starting to split and crack. Worse still, if moisture exploits the gaps in your stone, ice crystals can form and the surface of your stone could pop and come away in sheets.

 

 

All these issues could happen to your new patio installation in a matter of months if you choose an inappropriate stone.

 

And this is the reason why at Charles William paving & Landscapes we only use Marshalls and Natural Paving products.

 

DOWNLOAD BROCHURE

 

Please feel free to share this post by clicking any of the icons below

 

Indian sandstone

Indian sandstone

What is Indian sandstone

Indian Sandstone is a sedimentary rock that has been compressed over time.

 

It is made essentially of quartz grains cemented together.

The durability and strength of these rocks depend on the cementing material.

 

The best quality sandstone, for building purpose, should be of fine grain and uniform texture.

 

The colours of sandstone depend on the mineral contents and impurities in the sand. Generally, the sandstone is available in red, beige, pink, green, grey, brown, yellow, mint, teak, and in rainbow colour.

 

The different grades of Indian stone

The best stone is sold as Firsts, and this tends to be very good quality suitable for all sorts of projects.

 

Increasingly, this stone is bought up by the 'brand name' suppliers such as Marshalls and Natural Paving for their premium ranges or for use on commercial projects where quality thresholds are higher or may even be governed by the British or European Standards.

 

Then comes the Seconds, which may not be as neatly finished, or is a less attractive type of stone, but is, generally speaking, more than adequate for the vast majority of patio projects.

 

This stone is often sourced by Brand name suppliers such as Marshalls and Natural Paving for their standard ranges. Because they understand that some of their customers are primarily concerned with affordability and, as long as the quality is 'reasonable', don't worry too much about the stone being the very best, like the premium ranges.

 

Some of the 'seconds' rated stone will find its way into secondary processing plants, where a standard range stone can have its value uprated by being brushed or polished or honed. This extra process enhances the stone and moves the stone up to the mid-range level.

 

And then there's the Seconds Rejects, which varies enormously in quality, from 'not too bad' to 'truly abysmal'.

 

This grouping includes anything and everything that doesn’t make the two grades as mentioned above and should be avoided at all costs, find out later to see why.

 

Check out the video below about different grades of Indian Sandstone

 

 

DOWNLOAD BROCHURE

Not all stone was created equal.

Indian sandstone has become increasingly popular in the UK in recent years as a domestic patio or driveway product.

 

Due to its strength and versatility coupled with its natural beauty, Indian sandstone is often the chosen product with many homeowners to produce functional yet stylish spaces for family and social use.

 

Yet there are many hidden dangers with a significant proportion of the sandstones available on the UK market today.

 

Many of the cheaper sandstones are soft, porous stones which are easier to process, making them cheaper, but not strong enough to withstand the harsh British climate.

 

So Marshalls and Natural paving the leading suppliers in Indian sandstone have their own stone standards.

 

DOWNLOAD BROCHURE

 

What is the Marshalls Stone Standard?

The Marshalls Stone Standard mark gives our customers full assurances that all Marshalls sandstone exceeds the base technical levels outlined in the British Standard for design and installation, BS 7533-Part 12.

 

All Marshalls stones are repeatedly tested by an independent UKAS accredited laboratory.

 

The Marshalls Stone Standard sets minimum base criteria to which all our sandstone performs. These attributes are the most important technical factors that must be considered before choosing a stone for your patio or driveway project:

 

All sandstone sold by Marshalls will have a maximum Water Absorption of 1.7%

 

This figure tells you how porous the stone is. Sandstone with a water absorption percentage higher than 1.7% could go green within a matter of months, become slippery and be more susceptible to frost deterioration.

 

All sandstone sold by Marshalls will have a flexural strength of no less than 12.9mpa.

 

The Flexural Strength of a stone gives an indication of how strong the stone is. The higher the number, the less chance it has of failing or delaminating once in-situ.

 

All sandstone sold by Marshalls will be frost resistant

 

If a stone loses strength or starts to fall apart when subjected to repeated frosts (an essential characteristic in the harsh British climate), then it isn’t fit for purpose.

 

The Marshalls Standard is a reduction of no more than 10% on the flexural strength of the stone after 56 freeze/thaw cycles and a visual inspection rating of ‘0’.

 

Any sandstone paving that doesn’t meet ALL these criteria may not be fit for purpose and could fail.

 

All Marshalls stone is CE marked and tested in accordance to BS EN 1341.

 

 

Natural Paving Stone Standards

Choosing a stone for use in construction is not all about the colour and texture. The suitability, durability and the longevity of the stone for particular installations are also key factors.

 

The three icons on the diagrams below are on every page of their product brochure. So you can see which stone has what.

 


Sandstones with a higher water absorption have the tendency to go green.
To help prevent this they recommend sealing with one of the Pavetuf Sealants.

 

Flexural Strength

 

 

The flexural strength of a stone gives an indication of how strong the stone is. The flexural strength is measured in megapascals (MPa). The higher the number, the less chance it has of failing or delaminating once in-situ

 

Frost Resistance

 

Frost can sometimes attack stone, but most are very resistant to it.

 

They measure this by testing the flexural strength of stones after a cycle of freezing and thawing a batch of samples.

 

They have graded their stones on the percentage difference between the maximum flexural strength test before freezing and the strength test after a repeated freezing.

 

Stones that are not acceptable for the UK market do not appear in their collection.

 

All Natural paving stone is also CE marked and tested in accordance to BS EN 1341.

 

DOWNLOAD BROCHURE

 

What can happen?

What can happen if you don’t install stone that complies with the Marshalls or Natural Paving Stone Standard?

 

All the softer sandstones will start to go green very quickly unless given expensive and often temperamental sealing treatments which have to be reapplied every year.

 

These stones also have poor compaction between the sedimentary layers which could lead to the bedding planes separating and your stone starting to split and crack. Worse still, if moisture exploits the gaps in your stone, ice crystals can form and the surface of your stone could pop and come away in sheets.

 

 

All these issues could happen to your new patio installation in a matter of months if you choose an inappropriate stone.

 

And this is the reason why at Charles William paving & Landscapes we only use Marshalls and Natural Paving products.

 

DOWNLOAD BROCHURE

 

Please feel free to share this post by clicking one of the icons below