Rebars+ vs VerCivil

Easy calculator for area of steel rebars Quickly find the area of steel rebars - based on "total number" or "spacing" - for "beams", "slabs" and "shear reinforcement". It's very useful for civil engineers / structural engineers. Includes standard US, CA, and European rebar sizes (metric and non-metric units). FEATURES • Beam Reinforcement calculator (area for a given number of rebars) • Slab Reinforcement calculator (area for rebars based on their spacing) • Shear Reinforcement calculator (area of stirrup legs for the specified spacing) REBAR SIZES / UNITS • US (#) rebar sizes with non-metric units (inch, foot) • Canadian (M) rebar sizes with metric units (mm, m) • European (Φ) standard rebar sizes with metric units (cm, m)

Offline structural engineering platform: organize project members, run code-aware designs, and export a submission-grade PDF with cover, member index, material schedule, and engineer credentials. PROJECT WORKFLOW • Create projects with job number, address, engineer profile (name, license, organization) • Add members across slabs, beams, columns, foundations, walls, and steel connections • Status badges per member: pass, fail, or pending • Recompute project: refresh members in dependency order, propagating slab loads to supporting beams • Submission-grade PDF: cover, member index, per-member calculation, material schedule, code references appendix REINFORCED CONCRETE DESIGN • Slab: One-way and two-way RC slab with deflection and crack width checks • Beam: Flexural and shear design with stirrup zone schedule (close-mid-close per ACI §22.5) • Column: Axial and biaxial bending with Bresler Load Contour and P-M interaction • Foundation: Isolated footing with punching shear, bearing pressure distribution, and optional settlement check (elastic plus consolidation) STEEL DESIGN • Steel Column: AISC 360-22 plus Eurocode 3 plus IS 800:2007, with class-aware flexure (compact, non-compact, slender) • Section catalog: AISC W-shapes, Eurocode IPE / HEA / HEB, IS 800 ISMB, plus JIS H and BS UB / UC • Steel Connection: bolted (A325 / A490, EC3 8.8 / 10.9, IS800 4.6 / 8.8) plus fillet / CJP / PJP welds RETAINING WALL • Gravity and cantilever wall types • Rankine, Coulomb, and Caquot-Kerisel earth pressure theories • Mononobe-Okabe seismic earth pressure analysis • Overturning, sliding, and bearing stability checks • Surcharge, backfill slope, and drainage conditions SEISMIC ANALYSIS • ASCE 7-16 / DPT 1302 / Eurocode 8 / IS 1893:2016 Part 1 • Equivalent lateral force procedure • Story force distribution with base shear WIND LOAD • ASCE 7-16 directional procedure • Eurocode 1 peak velocity pressure • DPT 1311 with database for Thai provinces • Windward, leeward, and sidewall pressures plus topographic factors SECTION PROPERTIES • Rectangle, circle, I-section, T-section, L-angle, C-channel, hollow rectangle • Area, centroid, second moments, principal axes, section moduli • Torsion constant, warping constant, plastic moduli, shape factor HYDRAULIC DESIGN • Darcy-Weisbach, Hazen-Williams, and Manning equations • Water supply and drainage modes • Pipe sizing with Reynolds number and friction analysis • Optional pump sizing with TDH and NPSHa LIGHTING DESIGN • Lumen method per ISO 8995 guidelines • Room presets (office, corridor, warehouse, drawing room) • Fixture layout grid, uniformity ratio, power density • Coefficient of utilization and light loss factor STEEL BEAM — LRFD PRECAST/TOPPING — two-stage checks FOUNDATIONS — combined footing, pile cap, single-pile capacity SHEAR WALL — RC checks BASE PLATE — bearing/shear EVERY MEMBER INCLUDES • Interactive 2D engineering diagrams with labeled values • Pass / Fail status for every design check • Material quantity estimates (concrete, rebar, steel) • Save to project or quick history for later restore DESIGN STANDARDS Concrete: ACI 318-19, Eurocode 2 (EN 1992-1-1), IS 456:2000, EIT 1008-38 (Thailand) Steel: AISC 360-22, Eurocode 3 (EN 1993-1-1 plus EN 1993-1-8), IS 800:2007 Foundations/geotechnical: total/effective pile capacity Seismic: ASCE 7-16, Eurocode 8 (EN 1998-1), IS 1893:2016, DPT 1302 Wind: ASCE 7-16, Eurocode 1 (EN 1991-1-4), DPT 1311 Load combinations: ASCE 7-16 / IBC 2018 §1605.2, EN 1990 6.10a/6.10b, IS 456:2000 Table 18, Thai Ministerial Regulation B.E. 2566 Cl.7 Lighting: ISO 8995 Pay once at $19.99. No subscription, IAP, or ads. Disclaimer: For reference only. All calculations should be verified by a licensed professional engineer before use in any project. VerCivil is an independent tool and is not affiliated with or endorsed by ACI, AISC, CEN (Eurocode), BIS, ASCE, ISO, or the Thai DPT. Design codes are cited only as the published standards the calculators implement.