which joint for 4 x 2

[Lazurus]

I need to make a simple dumbell stand for a friends garage gym.The whole thing will be made from 4 x and 19mm ply shelves. So what joint for the frame work Mortice and tenon, lap and half lap, biscuit, pocket hole etc. The whole thing will be painted when finished so screw holes can be filled.

Your thoughts?

 

[MikeG.]

What does the thing look like? Joints are designed in answer to the type of load, and the relationship between the bits of wood, so until we know that we're just shooting in the dark.