As of 2015, builders can find free bed building plans at HomeDepot.com and DesignsbyStudioC.com. These websites offer the plans to make a single bed frame and headboard.
HomeDepot.com offers the plans to build a twin size bed on its website. The plans include a materials and tools list, and they feature a step-by-step guide for building the bed and putting it together. This plan includes photographs of each step as it's completed.
DesignsbyStudioC.com provides the builder with a list of materials and tools. A cut list ensures all the boards are cut to the correct size. This plan includes drawn illustrations and measurements for each step.