Build a Sturdy Workbench in Two Days with Christopher Schwarz: Join Christopher Schwarz for a woodworking tutorial and learn how to build a workbench in two days. With a base built from standard 4×4 lumber, a base with half-lap construction, and a top made from two IKEA countertops, the demonstrated design is a seriously sturdy bench that no one will question for quality. Once the workbench construction is complete, you’ll have no shortage of working surface or dog holes.