Why is there no provision for sink or oven on the layout plans provided?
The location of the sink in the layout has no impact at all on either the amount of tile or edging needed for the completion of the counter top, since the cutout for the sink will be taken from each of the tiles impacted. The impact of the oven on the layout is similar. With the loss of tile due to overlapping, the impact on the number of tiles can be as little as two tiles and, less frequently, as much as four. Our experience with granite tile countertops has always been that it is always better to have a few extra than being short of tile on a job.