Making something along these lines for my car

Im drawing a blank on what these things are called but im considering building one. Your average car ramps aren’t good for my car because its too low and don’t give me enough space. The jacking points a pain and nearly impossible to get to quickly. How would I go about building something like this? Any idea on materials? Would there be enough space for things such as exhaust work or would I be limited to fluid changes only?

Im drawing a blank on what these things are called but im considering building one. Your average car ramps aren’t good for my car because its too low and don’t give me enough space. The jacking points a pain and nearly impossible to get to quickly. How would I go about building something like this? Any idea on materials? Would there be enough space for things such as exhaust work or would I be limited to fluid changes only?