Precast Manhole Reinforcement Table

Match each P-position below to its location on this diagram.

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Input Data

Enter your project data

Manhole Name

a — inner length (mm)

b — inner width (mm)

c — bottom slab length (mm)

d — bottom slab width (mm)

e — clear opening length (mm)

f — clear opening width (mm)

h — inner height (mm)

k — precast slab thickness (mm)

r — bottom slab thickness (mm)

t — wall thickness (mm)

m — precast slab length (mm)

n — precast slab width (mm)

Concrete cover (mm)

P10

P11

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Calculation Results

Calculated instantly from your inputs