Use stud finders, rare earth magnets, or test holes behind baseboards to locate framing. Where studs miss, add French cleats that span multiple members. For masonry, choose the correct anchors and dust control. Document hidden lines with photos so future repairs or upgrades do not become destructive mysteries.
Few walls are perfect. Scribe side panels, shim rails, and check for plumb every meter. A laser line simplifies long runs and floating benches. Confirm reveals around doors and windows remain even. These small checks produce the quiet precision that makes custom work feel effortless and expensive.