String Furniture - Shelf String System - Beige - Lacquered MDF - Designer Nils Strinning; String Furniture Shelf Beige Wood. Dimensions: W 58 cm x D 30 cm - Thickness: 2 cm. Wood shelves are available in two widths, 58 and 78 cm, and two depths, 20 and 30 cm. The shelves are compatible with String® System grid and plexiglass uprights, provided that the shelves and uprights have the same depth. Shelves are flexible and easy to move to suit your preferences. Create a monochrome shelf or mix and match shelves in different colors and woods. Each package contains three shelves and stands.