One thing you swiftly learn when you become a professional laborer is that the major hardware brands not only sell a lot of different tools, but they don't always do as much as you'd like to ...
Sliding miter saws offer the advantage of crosscutting boards up to 12 in. wide while still providing all the benefits of non-sliders. They're available with blade sizes ranging from 7-1/2 to 12 in.