Charlieroc":2gg2s6wk said:
I am not certain what a liner is either. I am just repeating what I heard. Is it something to do with a tw piece boat versus three piece boat?
That's exactly it! A boat with a liner is a 3-piece boat, outside hull, deck, and inside liner. Can't tell you exactly "why?", but that's the way most boats, wlak-arounds and CCs, were made from the origination of fiberglass boats in the 70s up to late 80s or later.
While one could say a 2-piece boat is cheaper to mold and manufacture, that does NOT mean it is cheaper constuction. With a proper layup schedule, it could be stronger than a poorly designed or constructed 3- piece hull.
Some 3-piece designs are really 4-piece designs (Parker hulls), consisting of
integral grid/stringer system (like Parker uses for strength),
liner,
hull, and finally the gunnel
top-cap. Nowadays I'd guess one sees mostly hulls without liners to keeps MFG costs reasonable. Then too, there are rolled edge skiffs (think open boats like Carolina skiffs) that are a further design concept of the liner-less designs, as this eliminate the gunnel top cap or washboards.
IMHO there are some benefits with liner type hulls, as cubby holes are cut in them for ready storage places and it puts cables and wires out of exposed areas. Another benfit, if designed that way, is the liner can form a ready 'toe rail' feature into it, plus have under-gunnel built-in rod storage.
The only drawback I could envision would be if/when a liner delaminated from the hull, but it's so rare that I've never heard of it. I know of old 70s vintage Makos where the deck finally let go from the strngers, but again, zero longevity issues with a liner boat from what I've observed.
3-piece hull design:
2-piece hull design:
Photo credits: sparkybell627
