Structural Reinforcement ReferenceACI 318-19 • CSA A23.3 • EN 10080
Rebar Size Chart & Properties Database
Complete dimensional tables, unit weights, nominal cross-sectional areas, spacing charts, standard hook details, and tension development lengths for US ASTM, Canadian CSA, and European Metric reinforcing bars.
ASTM A615 / A706 Standard Sizes (US Customary)
Standard imperial reinforcing bars used across the US and Latin America.
| Bar Size | Diameter (in / mm) | Area (in² / mm²) | Weight (lb/ft / kg/m) | 90° Hook Tail | Details |
|---|---|---|---|---|---|
| #3(3/8 Inch) | 0.375″(9.53 mm) | 0.11 in²(71 mm²) | 0.376 lb/ft(0.56 kg/m) | 4.5″ (pin: 2.25″) | Specs & ld→ |
| #4(1/2 Inch) | 0.5″(12.7 mm) | 0.2 in²(129 mm²) | 0.668 lb/ft(0.994 kg/m) | 6″ (pin: 3″) | Specs & ld→ |
| #5(5/8 Inch) | 0.625″(15.88 mm) | 0.31 in²(199 mm²) | 1.043 lb/ft(1.552 kg/m) | 7.5″ (pin: 3.75″) | Specs & ld→ |
| #6(3/4 Inch) | 0.75″(19.05 mm) | 0.44 in²(284 mm²) | 1.502 lb/ft(2.235 kg/m) | 9″ (pin: 4.5″) | Specs & ld→ |
| #7(7/8 Inch) | 0.875″(22.23 mm) | 0.6 in²(387 mm²) | 2.044 lb/ft(3.042 kg/m) | 10.5″ (pin: 5.25″) | Specs & ld→ |
| #8(1 Inch) | 1″(25.4 mm) | 0.79 in²(510 mm²) | 2.67 lb/ft(3.973 kg/m) | 12″ (pin: 6″) | Specs & ld→ |
| #9(1-1/8 Inch) | 1.128″(28.65 mm) | 1 in²(645 mm²) | 3.4 lb/ft(5.06 kg/m) | 13.5″ (pin: 9″) | Specs & ld→ |
| #10(1-1/4 Inch) | 1.27″(32.26 mm) | 1.27 in²(819 mm²) | 4.303 lb/ft(6.404 kg/m) | 15.2″ (pin: 10.2″) | Specs & ld→ |
| #11(1-7/16 Inch) | 1.41″(35.81 mm) | 1.56 in²(1006 mm²) | 5.313 lb/ft(7.907 kg/m) | 16.9″ (pin: 11.3″) | Specs & ld→ |
| #14(1-3/4 Inch) | 1.693″(43 mm) | 2.25 in²(1452 mm²) | 7.65 lb/ft(11.38 kg/m) | 20.3″ (pin: 17″) | Specs & ld→ |
| #18(2-1/4 Inch) | 2.257″(57.33 mm) | 4 in²(2581 mm²) | 13.6 lb/ft(20.24 kg/m) | 27.1″ (pin: 22.6″) | Specs & ld→ |
CSA G30.18 Metric Standard Sizes (Canada)
Canadian metric deformed bars designated by nominal cross-sectional area.
| Bar Designation | Metric Area (mm²) | Diameter (mm / in) | Unit Mass (kg/m / lb/ft) | 90° Hook Tail | Details |
|---|---|---|---|---|---|
| 10M | 100 mm²(0.155 in²) | 11.3 mm(0.445″) | 0.785 kg/m(0.527 lb/ft) | 136 mm | Specs & ld→ |
| 15M | 200 mm²(0.31 in²) | 16 mm(0.63″) | 1.57 kg/m(1.055 lb/ft) | 192 mm | Specs & ld→ |
| 20M | 300 mm²(0.465 in²) | 19.5 mm(0.768″) | 2.355 kg/m(1.582 lb/ft) | 234 mm | Specs & ld→ |
| 25M | 500 mm²(0.775 in²) | 25.2 mm(0.992″) | 3.925 kg/m(2.637 lb/ft) | 302 mm | Specs & ld→ |
| 30M | 700 mm²(1.085 in²) | 29.9 mm(1.177″) | 5.495 kg/m(3.692 lb/ft) | 359 mm | Specs & ld→ |
| 35M | 1000 mm²(1.55 in²) | 35.7 mm(1.406″) | 7.85 kg/m(5.275 lb/ft) | 428 mm | Specs & ld→ |
EN 10080 / Eurocode 2 Metric Sizes (Europe, UK & Middle East)
Reinforcing steel bars specified by millimeter diameter for EN 1992 design.
| Designation | Diameter (mm) | Area (mm² / in²) | Linear Mass (kg/m) | Mandrel Dia. | Details |
|---|---|---|---|---|---|
| Ø12 | 12 mm | 113.1 mm²(0.175 in²) | 0.888 kg/m | 48 mm (4db) | Specs & ld→ |
| Ø16 | 16 mm | 201.1 mm²(0.312 in²) | 1.578 kg/m | 64 mm (4db) | Specs & ld→ |
| Ø20 | 20 mm | 314.2 mm²(0.487 in²) | 2.466 kg/m | 80 mm (4db) | Specs & ld→ |
| Ø25 | 25 mm | 490.9 mm²(0.761 in²) | 3.853 kg/m | 125 mm (4db) | Specs & ld→ |
| Ø32 | 32 mm | 804.2 mm²(1.247 in²) | 6.313 kg/m | 224 mm (4db) | Specs & ld→ |
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