🧱 Precast & CMU U-Block Lintels, Arching Action Load W & Bending Moment Lb-Ft

Reinforced Masonry Lintel Beam Calculator

Size reinforced concrete and CMU U-block lintel beams over commercial window and overhead door wall openings under TMS 402: calculate arching action 45° masonry triangle load distribution, design bending moment (M = wL²/8), required bottom tensile rebar steel area (As), and masonry lintel installation margins.

1. Project & Operating Inputs

Total Lintels Installed (Lintel Count e.g. 32 Lintel Openings)

Average Opening Clear Span (Feet e.g. 10.0 ft Clear Opening)

Customer Invoiced Bid Price per Lintel ($ / Unit e.g. $1,450)

U-Blocks, #6 Rebar, High-Strength Grout, Shoring Posts & Masons ($ / Unit)

2. Financial Breakdown & Yield

TMS 402 REINFORCED MASONRY LINTELS

Turnkey Lintel Package Profit

Structural Masonry Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost