1. Appliances, Sinks and LightingI recommend that clients select appliances and sinks during the preliminary design phase, which often comes before selecting the rest of the finishes and fixtures. This is so the plans can reflect the proper sizes, which will in turn affect the cabinetry layout.Also, I recommend picking the type and amount of lighting fixtures during this phase: cans, semi-flush mounts, how many pendants over the island and so on, in order to complete the lighting plans so the contractor to provide estimates. Most people haven't actually picked what style pendant light yet, but at least the decision about number is done.It's also time to decide whether or not you want a prep sink in addition to your main sink. At this point, by the way, it's fine if you decide to change from a 36-inch range to a cooktop and wall oven. By the time you get to final construction documents or order cabinets, however, these decisions must be finalized. The nice thing is that there are now a few big decisions that you can check off your list.