Roof Rack w/ Floor Inserts?

[tustmeimlying]

Hey, does anyone know of any companies besides Westcott Designs that makes a roof rack with a solid floor? I like the design but thought I'd see if any other options exist yet. Did other companies make this 5th gens?

2025 Toyota 4Runner (6th Gen) Full-Length Modular Roof Rack

 

[Mad Ghost]

are you able to get a cargo box mounted on a design like this?

 

[mars001]

That rack with floor looks like a nightmare in air resistance!