This document provides notation, materials, and design methods for masonry structures. It discusses reinforced and unreinforced masonry design based on allowable stress and strength/LRFD approaches. Key points include: - Notation used in masonry design is defined, along with materials like masonry units, mortar, and grout. - Reinforced masonry design uses steel reinforcement to resist tension while masonry resists compression based on equilibrium. Design is checked against allowable stresses. - Columns must be reinforced and have ties. Allowable axial loads depend on factors like slenderness ratio and reinforcement. - Examples demonstrate checking unreinforced wall capacity against loads and determining required