DIY Steel Pipe Shelf
It gives the impression that the shelf has been installed around the plumbing.
When mounting the shelf to a plasterboard wall, find the studs and mark them on the wall using masking tape, then use the distance between the studs to determine the length of the lower pipe.
DIY TIP: Mount the shelf to the studs or use hollow wall anchors through plasterboard.
Mark two pipe holes on the shelf with the centres spaced the same distance apart as the stud centres, and 40mm from the front edge.
Drill the holes using a 15mm spade bit.
Make a third hole in line with the first hole on the right, 90mm from the front edge.