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Internal Height

Hi, could anyone tell me the approximate internal height of a 10' wide beam?

Asked by: David Wright  | 7.03pm, Wednesday 29 May


WW says:

This depends on a number of factors so there is no definitive answer.
The first is the draught of the boat. If this is fairly deep - say 2ft 3in or more - the air draught, or the height of the boat above the water line, can be greater without the danger of striking a bridge or other obstruction. In this case, the internal headroom can also be taller. However, there are some bridges that are particularly low - Osney Bridge on the Thames is one. If you plan the cruise this area a lot, it might be advisable to sacrifice a little internal headroom for peace of mind.
The height of the internal floor above the base plate will also affect the headroom. It should not be excessive but must allow a good flow of air through the bilge to avoid dampness leading to odours and rot.
Another factor is the profile of the roof. Some are fairly flat while others have a pronounced curve. In the latter case, the headroom can be greater - at least in the centre of the boat.
Wide beam boats are likely to have a taller headroom than a narrowboat because a lower headroom combined with a wider beam would look rather oppressive.
Summing up, a typical height is probably around 6ft 2in to 6ft 4in but, if you are particularly tall, you should discuss this with the builder or check the headroom of an existing boat with the broker before going to inspect it.

Graham Booth  | 10.32AM, Thursday 30 May


Readers say:

Thank you Graham for the comprehensive answer, very much appreciated.

David Wright  | 10.35AM, Thursday 30 May

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