CMU Grout Volume (Partial and Full Grout)
The grout volume for a reinforced CMU wall: grouted cores at the rebar spacing (cores = floor(len x 12 / spacing) + 1) plus a continuous bond-beam course, in ft^3 and cubic yards. Core and bond cross-sections come from the unit data; the spacing comes from the structural drawings and the engineer of record governs the reinforcement - a material takeoff, not a structural design.
Formula and source
cores = floor(wall_len_ft x 12 / core_spacing_in) + 1; vert_ft3 = cores x wall_ht_ft x (core_area_in2/144); bond_ft3 = wall_len_ft x (bond_area_in2/144); total_yd3 = (vert_ft3 + bond_ft3) / 27.
First-principles core-count and grout-volume relations with TMS 602 / ACI 530.1 (Specification for Masonry Structures) and the NCMA TEK grout references (by name).
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