Conventionally, pins would be drilled into the walls. Yet, the pins would be visible. An avoidable visual downside to the standard solution.
Instead, two full-height, painted MDF plates would be slid in on either side of the stone wall until flush with the outer wall. Their wall-facing sides received a generous helping of gap-bridging and bonding agent beforehand, then three glass panes were slid into pre-machined grooves in the MDF.
As a result, the glass was ensuring proper spacing of the MDF. Temporary wedges took care of proper height alignment until the bonding agent solidified.
Once the acrylic had settled, out went the wedges and the gaps between boards and walls were sealed for that extra-flush appearance.
The entire shelf system was thus self-supporting, much more so than conventional solutions and even simpler to manufacture.
