Nsgarch has it right. I have a roll out assembly similar to what you want, but mine only has to support a Maple shelf and VPI 17F record cleaning machine.
My record cleaning machine still manages to vibrate what is an otherwise very sturdy shelf, I cannot imagine a heavy turntable being happy on that kind of rig.
My record cleaning machine still manages to vibrate what is an otherwise very sturdy shelf, I cannot imagine a heavy turntable being happy on that kind of rig.