The structure of his works is often related to the empty frame within which individual wooden laths form supporting structures on which flat elements can be mounted. Schmidt uses these individual elements on an equal par and without deriving a hierarchy from their original function.

In fact, Schmidt goes even further. He not only uses the various materials without considering their original function, but also tries to derive the design of the works from the materials themselves, by letting himself be guided in the composition of his works by the forms of the materials and colors already present.