Merry anne narrow-boat full-size plans narrow-boats/ canal boats are today mainly used for holidays on the vast network of waterways throughout the country, but some are used as permanent accommodation. originally, up to about the 1960s, these boats were used to transport such goods as coal, clay. Re: narrowboat plans should be a pretty simple model to build without detailed plans. i did a google search for "narrrowboat plans" & found many layout plans in addition to scores of photos including several models.. Model narrowboat plans. rowboats are simple boats which are propelled with the drinking water using the use of oars. rowboats are not built for speed. they’re intended for use for more leisurely activities, like casually traversing a lake or pond or rowing to and from ships..