Bar Areas

# Inch2 mm2

3 0.11 70

4 0.20 130

5 0.31 200

6 0.44 280

7 0.60 390

8 0.79 510

Spacing, Area in Slabs

1000)(

)1()(

requiredA

barAmmSpacing

s

s

1000)(

) 1()(

mmSpacing

barAProvidedA s

s

Spacing, Area in Slabs

12)(

)1()(

requiredA

barAinSpacing

s

s

12)(

) 1()(

inSpacing

barAProvidedA s

s

L1/8

L2/8

BOTTOM BARS

TOP BARS (main)

Li/3

TOP BARS (+Supporting)

Li/3

Nominal Dia @ 18”C/C

Normally not shown in Plan

BENT UP BARS

L2/7

L2/3L1/3

L1/4

BENT UP BARS

1/7

1/4

1/3

1/3

1/41/3

1/7

BENT UP BARS

Loose bar Spacing

Rightfrommm

Leftfrommm

mmrequiredAs

350@3#

250@4#

1000)( 2

2mm 720

350

100070

250

1000130)(

ProvidedAs

(#4bars)

450mmmm 644 280

1000130

Spacing

Rounded to nearest 25 mm

CORNER REINFORCEMENT

1/5lb

1/5lb

4 layers2-TOP LAYERS

2-BOTTOM LAYERS

CORNER REINFORCEMENT

2 layers