Not all wood samples from timber frames or other beams in various buildings and structures are good candidates for dendrodating.There are four basic criteria that must generally be met.They are the following: The first criterion is that a waney edge must be present in the obtained wood sample – either a core of wood or slice of wood.
Eastern Barn Consultants will determine what costs are involved in the dating of a particular building and this information will be given to a prospective client.
It is imperative to know that the stated costs will be in full effect assuming that good and proper wood samples may be obtained.
Wane is significant as this was the last annual growth ring to be deposited, so to speak, before the tree was felled.
If, by using the method of dendro-dating, it can be determined when the outermost ring was formed the possibility exists that the construction date of a timbered building might be determined.
In the process of extracting wood samples in the past there would have been occasions when a good sample could not be obtained. Good cores, and not too often wood slices or sections may be extracted in their “full form.” Occasionally a few attempts are made to extract cores or slices from the same beam.
If this is the case, other attempts are made to extract cores or slices from other beams in the same building.
The last criterion is seen where dendro-dating is used so that a timber framed building may be dated, that is, when the construction occurred – where there is the assumption that the timber or tree the wood sample came from was felled the year (or perhaps one to two years) before the structure was erected.
The other requirement was that it was used in the original construction of the building, that is, not recycled.
Dendro-dating can be a very effective although not foolproof way of creating data that can often lead to discerning the age of construction of various buildings and structures in the northeast and beyond.