Construction, standards and environment
variation
In short and in plain language
A variation is work that was not in the first order.
It is extra or changed work. The pay for it is part of it too.
In landscaping, it can come from ground that is not as expected. Or the client asks for a change.
It is usually reported, described and approved in writing before the work is done.
Definition
A variation (German: Nachtrag) is additional or changed work that was not part of the original order, together with its payment. In landscaping it arises from unexpected ground conditions or changes the client asks for. It is usually announced, described and approved in writing before the work is carried out.