Technical drawing sheet detailing common clay brick wall construction. The layout includes a 1:20 scale isometric view showing brick courses and internal concrete reinforcement (castillo). Detailed sections at 1:25 scale illustrate load transmission for straight and sloped wall faces.
The sheet provides specification notes covering material ratios for cement-sand mortar, brick soaking procedures, and horizontal joint alignment. It specifies clay brick dimensions of 7 x 14 x 28 cm and outlines tolerances for wall verticality and moisture protection. Muro de tabique común.