Size limitation for edge glued carvel planking

[makobuilders]

I'm speaking to a shipyard about a new construction and all of their hulls are 3 inch thick hardwood planking edge glued and screwed to the frames. This system works for them, but I have read articles where with edge-glued it is recommended not to exceed small thicknesses. Does anyone have knowledge of this and the limitations?

 

[DownWest]

Think you need to get over to the Wooden Boat Forum and ask this question. Edge gluing big planks does not sound very mainstream... Strip planking is usually small sizes, edge glued and sheathed in either a couple of wood veneers and/or glass cloth with époxy resin.
It would help if you gave an idea of the size of your project. Strip had been used on boats of 50 odd feet.
From what I have read, Qatar still builds classic plank on frame, with caulked seams, not glued. Big planks tend to move, which does not favour gluing, but has worked for centuries with caulking.

 

[PhillM]

My 24.5 footer is 7/8th - 1 inch thick mahogany, nailed, edge glued and screwed to frames. Seems to have stuck together OK for over 50 years.

 

[Mad Pad]

3 inch planking!!!
What size hull are you talking about....has to be 100 ft +?

 

[DownWest]

3 inch planking!!!
What size hull are you talking about....has to be 100 ft +?

Wot I was thinking, but I did a gentle response )

 

[ccscott49]

My planking is 1 5/8" not quite edge glued, but splined and glued, still in fine fettle, from 1965. We are 57 feet.

 

[DoubleEnder]

My hull is 1" mahogany, glued and splined above the waterline. 34 feet LOA, 24 feet LWL. I never heard of 3 inch planks being glued....but who knows?

 

[DownWest]

Just wonder if this has translation problems between the OP and the builders? 3" thick.. but how wide? Doesn't make sense, esp; in an area where trad skills are still practiced.

 

[ccscott49]

I'm speaking to a shipyard about a new construction and all of their hulls are 3 inch thick hardwood planking edge glued and screwed to the frames. This system works for them, but I have read articles where with edge-glued it is recommended not to exceed small thicknesses. Does anyone have knowledge of this and the limitations?

Actually would have thought the thicker the planks the more glued edge, the better,