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Flood Protection Calculator

Add each entrance you need to protect. We will calculate the exact number of sandbags and barriers required, then show you 3 bundle tiers with increasing levels of protection and savings.

How we size your bundle

Each entrance is treated independently. For every entrance we compute:

  1. Width to protect = entrance width + 30 cm safety margin on each side
  2. Bags needed (across) = ceil(width to protect / coverage width per bag)
  3. Rows needed (up) = ceil(height to protect / bag thickness)
  4. Total packs = ceil(bags across x rows up x depth rows / bags per pack)

Higher tiers add more depth (double rows) and swap bags for reusable PVC barriers when entries are wide enough.

Standard Door (90cm)
90 cm wide

Protection Parameters

100 cm