Just looking at our plans and then measuring the windows that have been put in our extension by the builder (almost at lock up stage) and the windows are slightly different sizes to the plan dimensions. eg plan says 2100x1800 actual window is 2060x1820.
This has only posed a problem now that a piece of architrave will not fit along the bottom under he window on the floor. It will have to be a cut down skinny bit to fit!!! Do builders have to have the exact size windows on the plan or can they differ? Thanks