Portland limestone Perryfield basebed
Perryfield basebed is a tightly grained stone with very little shell content, similar in looks to the whitbed, but with a slightly more buff colour.
It is suitable for most applications as a general building stone, but not recommended in exposed areas such as paving and copings. Carvers highly regard this Portland stone due to the low shell content, and it is used primarily as a monumental stone. Basebed is frequently being used internally for paving in both high quality office developments and private residences.
Unlike all the other Portland quarries where beds of 1 metre high or more are the norm, the bed heights for basebed are 550mm high maximum. We have extensive stocks of this stone with blocks typically from 1 tonne upwards to 8 tonnes.
Sizes Available: – Maximum Typical Range
Bed Height: 400mm to 550mm
Length: 500mm to 1,200mm
Historic use indicates that it is capable of service life well in excess of 60 years providing that exposure conditions are not subject to severe frosts or high concentrations of sulphur dioxide, and that good stone detailing methods are employed to give best protection from surface water ingress.
It is estimated that the likely weathering rate of this stone would lie between 1mm to 3mm per 100 years in normal exposure conditions.