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Widebeam cost calculator

A planning guide for widebeam costs, with attention to beam, moorings, navigation limits and maintenance assumptions.

Verification status

Starter estimate only

Any figures you enter for this topic should be treated as planning assumptions until replaced with a quote, bill or official figure.

Reviewed May 2026

Widebeam planning needs different assumptions from narrowboat planning. Mooring availability, navigation limits, heating, power and maintenance access can all change the budget.

Assumptions to keep visible

A good widebeam budget should show which details are known and which are still assumptions. That is especially important before committing to a berth, purchase or residential plan.

Beam and length
Residential or leisure use
Home mooring or cruising pattern
Access to shore power
Heating and power setup
DIY or paid maintenance

What this affects

For many widebeam plans, the mooring question is not a side detail. It can affect licence planning, facilities, commuting, power, winter costs and whether the boat is practical in the area you want.

Frequently asked questions

Can I use narrowboat assumptions for a widebeam?

Some categories overlap, but moorings, access, movement and some maintenance assumptions may differ enough that you should keep them visible.

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