Stand-alone hood can have optional clipped or rounded corners. Add special offsets to create a lip. Optional rectangular, square or round duct covers are smart additions. Click on the models for a list of our base model numbers for standard sizes; simply select the model you need, and then specify the finish [painted, stainless steel, real brass, real copper, or hammered copper]. Recommended mounting height is 30" above the cooking surface. All Vent-A-Hood products are suitable for use in damp locations [outdoor applications such as a covered patio] when installed in a GFCI protected branch circuit. Click here for details on how this hood may be back vented.(BR)