No need to overhaul the entire basement by knocking out walls for natural light or involving professional contractors for major renovations. In fact, you can leave the concrete floor exactly as is.

For an unfinished basement ... with three-inch construction screws. Drive two screws at each joint. Be sure to pre-drill pilot holes in the long frame members. The post How to Build Shelves ...

@benderhomes advocates for the assemble-and-lift approach, so long as you have room in your basement to do it. It is definitely faster to build your wall on ... the floor with construction ...