Justin Metzler on Instagram: "I’ve gotten a bunch of floating shelf installation requests for the mock-up wall. I do actually have one planned, but it’s going to be in my new laundry room I think. However, the request did jog my memory about this project. It resides in my shop. This was a cutoff from an old floor joist from a Philadelphia schoolhouse. The rest of the beam was used in my kitchen Reno a number of years ago. I used a scrap piece of 1/4” angle for a bracket in this case. I wouldn’t