Swimming Pool Rebar Calculator

Size the reinforcement for a pool wall. Enter the wall length and height with the vertical and horizontal spacing — calculate each wall, then add the floor using the slab tool.

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How to use: Swimming Pool Rebar Calculator

Enter the pool wall length and height.
Set vertical and horizontal spacing.
Pick bar sizes for the total per wall.

Formula

Same grid method as a wall: bars each way from spacing, summed × kg/m. Repeat per wall and add the floor.

See the full rebar weight chart (kg/m & lb/ft) →

Swimming Pool Rebar Calculator — FAQ

What size rebar for a pool?

#3–#4 (10–13 mm) at 250–300 mm centres each way is typical; follow your engineer.

How do I calculate pool rebar?

Calculate each wall panel and the floor separately, then add them together.