Design floor plans with templates, symbols, and intuitive tools. Our floor plan creator is fast and easy.Create detailed floor plans with measurements using RoomSketcher. Add room and wall measurements quickly and easily with our Measurement Wizards. The best method I've found for marking out a foundation excavation or slabongrade site involves string on soil, some 12inch spikes and a can of spray paint. In this mini-series, we're going to cover Construction Blueprints from start to finish. The first step to creating a floor plan is to measure your space.