Welcome
Element-by-element rebar detailing calculators and checkers. Column & Beam configuration follow the standard reinforcement-dialog workflow (stirrups, main rebars, distribution, dowels) with a live section preview and leg values. Bend shapes follow the JTB Rebar catalog lettering with arrangement diagrams. All hook dimensions use the exact ASTM / PCI Design Handbook standard tables and lap lengths follow ACI 318-99 §12.
Column ReinforcementTies, main rebars z/y arrangement, stirrup distribution zones, dowels — with section preview & leg values B/C/D/E.
Beam ReinforcementStirrups & inner legs, top/bottom bars, zone distribution — with section preview & leg values.
Wall ReinforcementVertical/horizontal curtains, hooks, top & side dowels with lap checks.
FoundationTop/bottom mats, bar counts, mat clearance and lap checks.
StandeeStandee height from slab thickness, covers and layered bar diameters.
Slab MatTop/bottom layers vs minimum temperature & shrinkage steel and spacing limits.
Stock CalculationFull stock bars + odd bar from total length, stock length and lap.
Imperial / Metric CalculatorFeet-inch-fraction converter, dimension add/subtract, bar size & hook reference tables.
Bend ShapesFull JTB catalog (65 shapes) — arrangement diagram with leg values and total length.
Lap ValueACI 318-99 tension/compression development & splice lengths with all ψ factors.