technical architectural cad cross section drawing 2d detail view style minimalist black line art on white background high precision blueprint look composition vertical wall structure on the left with plaster finish horizontal floor structure on the bottom showing concrete slab screed layer and a top layer of engineered wood parquet flooring critical detail the wood flooring layer stops abruptly showing a clear 10mm air expansion gap before reaching the wall installed element a specialized aluminum skirting board profile is mechanically fixed to the wall bridging over the expansion gap the aluminum profile features an upper channel housing a small led strip with a diffuser and a lower face section with a matching wood veneer insert glued onto it includes subtle technical dimension lines and hatching for different materials diagonal lines for wall cross hatch for concrete wood grain texture for flooring and insert clean sharp lines
