In order for us to create a template, we will need your cabinets installed. Furthermore, if there are areas which require additional support for your countertop layout, we will be happy to suggest some options to you, but it is your responsibility to have all supports (corbels, legs, brackets, etc.) on site at install. The templater can determine at the day of template whether or not we can install the supports ourselves or if you need to have another professional do so. Please note that there are different support requires for different materials like Corian countertops and, say, Quartz countertops.