Modular clay brick: 3-5/8 x 2-1/4 x 7-5/8 in (4 x 2-2/3 x 8 nominal with mortar). Grade SW (severe weathering) or MW (moderate weathering) per ASTM C62/C216. Compressive strength: 3,000 psi min (SW), 2,500 min (MW). Water absorption: <17% (SW). Types: FBS (standard), FBX (select), FBA (architectural). Colors: red, buff, brown, gray, black — from clay composition and firing temp (1,800-2,400°F). Typical veneer cost: $12-$28/sf installed. Mortar: Type S below grade, Type N above. Steel lintels at openings, weep holes at 24 in o.c., air space 1 in min behind veneer with WRB. Flashing at base, windows, shelf angles. Brick ties: corrugated metal or adjustable at 16 in horizontal, 24-25 in vertical. CSI 04 21 13.