How many cabins do you really need?

Count the people who sleep aboard on a normal trip, then add at most one cabin. Extra cabins cost money and cut into the saloon.

Updated 24 Oct 2026 2 min read

Key points

Most 40 ft production sailboats are offered with two or three cabins.
Day guests need a large cockpit and saloon. Overnight guests need cabins.
Resale favours the layout most buyers want: two cabins in a day boat, three in a 40 ft cruiser.

Count nights, not people

Most boats carry more guests during the day than overnight. A boat with a big cockpit and a comfortable saloon can host eight for lunch and still sleep four. Write down how many people slept aboard on your last three trips. That number sets your cabins.

Cabins by use

One cabin: a couple, short stays. Suits a 30 ft boat.
Two cabins: a couple, or a family with children. Many owners choose this layout and use the second cabin as storage.
Three cabins: a family plus guests, or two couples. Common in 40 to 45 ft sailboats.
Four or more: mainly charter layouts and catamarans of 40 ft and above. Check the size of each cabin.

The cost of the extra cabin

Each cabin takes space from the saloon, the galley or the storage lockers. Each head adds a pump, a holding tank and a seacock to maintain. A fourth cabin on a 40 ft monohull usually means small cabins and a cramped saloon. A boat designed around two good cabins will be easier to live on than the same hull with three small ones.

Catamarans have an owner's version

Catamarans come in a charter layout, with four or more cabins and shared heads, and in an owner's version where one entire hull belongs to the owner. The owner's version has a large cabin with an office or a dressing area. The charter layout sleeps more and resells to charter operators.

Resale

Buyers search for a layout. In a 40 ft sailboat that is usually three cabins. In a 32 ft day boat it is one cabin with a sunbed and enclosed heads. A well-built unusual layout can take longer to sell. Ask a broker what moves fastest in your size range before you commit.

Questions to ask on board

Is there standing headroom in every cabin?
Can the berth fit a person of your height?
How many people can sit at the saloon table at once?
Where does the luggage go for a week-long trip?

Also useful at step 1 Yacht sizes: 30, 40, 50, 60 ft. What actually changes?

General information, not legal, tax or financial advice. Rules change; check your own case with a professional or ask us.