- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 27 Feb 2021
Puddingstone (sometimes called plum-pudding stone or raisin-pudding stone) is a rock, typically a spotty, dark brown conglomerate that resembles a Christmas pudding. A conglomerate is a stone that is made up of very well-rounded pebbles that are bound together by a natural cementitious material. The colour of the stones is usually in sharp contrast to the colour of the sandy matrix in which they are set.
There are several different varieties of puddingstone with varying origins, composition and geographical distribution, such as those found in southern England, the US and Canada. The material has been used for building in the Home Counties (except Kent) for centuries.
Puddingstone typically comprises small, rounded stones of flint and sandstone, cemented together by a silica or iron oxide cement. It occurs in the London basin, Essex, Surrey, Buckinghamshire and some parts of Bedfordshire. It can sometimes feel very hard but some types are softer and can even be crumbled by hand. Puddingstone is therefore not regarded as a premium building stone. Nevertheless, it has been used for construction – mainly for churches – where nothing else was available or it was convenient to quarry.
Notable UK examples include the church at Chobham, Surrey; the tower of the parish church in Wokingham Berkshire; Beeleigh Abbey, Essex, and in some parts of Buckinghamshire, where it was used for the foundations of churches.
Puddingstone also occurs in the USA, such as in the Schunemunk mountain, Orange County, New York (where there is a 910m-thick bed), and also around Boston, as well as in Michigan and Ontario, Canada.
 Related articles on Designing Buildings Wiki
- Choosing stone.
- Defects in stonework.
- Finding stone to conserve historic buildings.
- Inspecting stone sample panels.
- Kentish ragstone.
- Modern Stonemasonry.
- Natural stone cladding.
- Natural stone.
- Portland Stone.
- Roof slates.
- Sourcing stone to repair Exeter Cathedral.
- Stone dressing.
- Types of stone.
Featured articles and news
As energy prices jump up in cost.
With people in the UK from Ukraine.
Industry leader Steve Murray takes on role.
An abundant and versatile building material.
600,000 heat pump installations targeted per year by 2028.
Helping prevent those unwanted outcomes.
How has transport changed due to Covid-19 ?
Will you need it ? after June 15 and the new Part O ?
Create an account and write the first of many articles.
CIAT commentary after the first meeting.
Who is to blame?
Research recommends focussing on portfolio success rather than project success.
The revised standard for mapping underground utilities.
Cross-industry steering group seeks support in delivery.