All our drawer units have wooden interior drawer boxes, each on Blum soft close runners. The boxes are constructed using dovetail joints, which are a wonderful feature to have visible. We tend to use mostly Ash or Oak for the sides, however, the Birch-ply looks very striking too.
In making the internal drawer box the full height of the drawer front we ensure that the maximum amount of storage space is obtained with each drawer.
The photo shown is proof that the use of wood and traditional joints work well with contemporary materials, such as this Parapan drawer front.