#14 (No. 14) Reinforcing Bar - ASTM (US)

#14 (No. 14) is a ASTM (US) reinforcing bar to ASTM A615 / A706 (Table 1). Its nominal diameter is 1.693 in (43 mm), giving a cross-section area As of 2.25 in² (1452 mm²) and a mass of 7.65 lb/ft (11.38 kg/m). It is supplied in grade Gr.60 / Gr.75 / Gr.80 with characteristic yield f_yk = 420 MPa. The tables below give the total steel area for 1-10 bars and the area per foot of width at common bar spacings.

Area As: 2.25 in² (1452 mm²)
Diameter: 1.693 in (43 mm)
Mass: 7.65 lb/ft (11.38 kg/m)
f_yk: 420 MPa

Bar properties

d	Nominal diameter	1.693 in / 43 mm
As	Cross-section area	2.25 in² / 1452 mm²
m	Mass per metre	7.65 lb/ft / 11.38 kg/m
u	Nominal perimeter	135.1 mm
f_yk	Characteristic yield	420 MPa

Total area for n bars (As = n × 2.25 in²)

Bars	1	2	3	4	5	6	7	8	9	10
As (in²)	2.25	4.50	6.75	9.00	11.25	13.50	15.75	18.00	20.25	22.50

Area per foot at spacing (As/ft = 12/s × 2.25 in²)

s (in)	3	4	5	6	8	10	12	18
As/ft (in²/ft)	9.00	6.75	5.40	4.50	3.38	2.70	2.25	1.50

Source: ASTM A615 / A706 (Table 1). Area = π/4 × d² for metric bars; ASTM areas are the standard's tabulated nominal values. Grades available: Gr.60, Gr.75, Gr.80.

Other ASTM (US) bar sizes

#3 (No. 3)#4 (No. 4)#5 (No. 5)#6 (No. 6)#7 (No. 7)#8 (No. 8)#9 (No. 9)#10 (No. 10)#11 (No. 11)#18 (No. 18)

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