Advise on replacing deck on 1970 crusier

Fraggle

New member
Joined
8 May 2011
Messages
10
Visit site
Could anyone advise on the thickness of marine ply suitable to replace deck on a 1970 river crusier. I am unsure whether to use 12mm or 18mm. Any advise would be appreciated. Do not want to add excess weight if its not required.
 

exfinnsailor

New member
Joined
18 Jul 2007
Messages
1,779
Visit site
Don't use cheap ply . You need at least 5 ply . Anything else will have a layer on the outside and a load of rubbish inside . Look out for voids and soft spots . Decent QUALITY ply is not cheap , especially if you call it MARINE PLY :eek:
 

DownWest

Well-known member
Joined
25 Dec 2007
Messages
13,184
Location
S.W. France
Visit site
As it is a river cruiser, and if the support beams are reasonably close together (12"?) then 12mm should do it. Google marineplyonline they are near Bristol and much cheaper than a better known firm there. Cors, if you have large crew members leaping onboard from high locks, then a bit thicker might be an idea.... 18mm is pretty thick tho. My sea boat has 10mm on 12" framing. But in effect, this is 9mm because 10 is rare nowdays. Designer said 'not a problem'.

Edit: slow typing: PCUK got in ahead.
 

Fraggle

New member
Joined
8 May 2011
Messages
10
Visit site
Thanks for advise. Exisiting frame is 18" apart. As this is a high traffic area i.e getting on/off/ social area I thought thicker the better (within reason!) but i was worried about compromising boat structure.
 
Top