Masonry Wall Design Calculator
Design reinforced masonry walls: check slenderness, compressive capacity, moment capacity, and load adequacy.
Inputs
TMS 402: min 150 mm load-bearing; 200 mm (8") standard CMU; 300 mm (12") for high axial loads
ASTM C90 / TMS 402: standard CMU f'm 13–15 MPa; high-strength 20–30 MPa; min 13.8 MPa
ASTM C270: Type M ≥17.2 MPa (foundations); Type S ≥12.4 MPa (reinforced); Type N ≥5.2 MPa (exterior above grade)
Results
Compressive Capacity
555,153 N
Allowable Axial Load
555,153 N
Adequate?
1 (1=yes, 0=no)
How to Use This Calculator
- Enter the wall height, thickness, and the design wind pressure in psf.
- Input the masonry compressive strength (f'm) and the reinforcing steel yield strength.
- Set the axial load from floors or roof above in plf.
- Review the Moment Capacity, Shear Capacity, and the Combined Stress Check.
- Ensure unity ratios for bending and shear are both under 1.0 per TMS 402.
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