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[scklandl]

so I'll be using 1" - 1.5lbs EPS dbl to get a 2" core, which will be shaped then 1/4 a500 corecell attached,

ending up5'3" x18.5 x 2-2.25" (kiteSURF board)

most people here are using balsa or another wood instead of PVC foams and often 1/8" foams, so Im wondering about the thicker skin/wood vs foam variables

what would good layups be?

Im thinking of a 6 outer+ 2,3 or 4 inner (4 is cheapest!!!:)  top and bottom as would seem to be most consistent with other builds here.

 I could be doing the lams with peelply so I could start with 6 oz and continue to add glass as needed.

[Kit Sidwell]

Hmmm kitesurf... bit different idea to surfboards, so not sure if this is the right answer.
Geoff is the man to talk to, hopefully he'll chime in.

1/4 foam sounds good, you'll have some heavy stomping going on.
With a surfboard, snap-strength is easily achieved with minimal glass, then stomping from your feet/knees requires more glass, then piercing dings require even more glass again!
You'll get really good snap strength from the 1/4 foam, and reasonable resistance to stomping from your feet, but the ding resistance will suffer, as your probably going lighter on the outer glass to try and recoup some of the weight that those thick skins are addding.

So from that perspective, 6oz over will give you average to decent ding resistance for a surfboard.
Not sure about kiteboards, but i'd assume you'd want them to be pretty hardy, for beach landings and stuff? Maybe more glass then. I know it's gunna be a surf-style kiteboard, so not sure how you actually use and abuse those?
Selective strengthening of the high damage areas will be key

[Kiterider]

Hey S...
 You like this group eh??
Good honest info here...
1/4" would be a good choice for a bottom skin because you can shape in a nice single or double concave and still have enough skin for good strength..
 For the deck you want to go with 1/8" core-cell doubled up  where needed ("foot stompin' area") with a carbon or glass load spreader patch....
 1/8" core-cell and 1/16" to 3/32" balsa  on the bottom is the best lively combo for kite surfboards imho.
If you use doubled up 1/8" C-C  in the high traffic deck areas, you can slap carbon or extra glass in between the doubled up foam in the foot bed areas as needed...

This is a great group huh?? .... but you have to adapt their surfboard building knowledge to surf  kiting and build according to the added forces involved,,, unfortunately this adds weight,,,, and there's no way around that,,, other than attaching the hard foam skins with a lighter more flexible bonder. which I've spoke about in other places...

Cheers Tony>>>

[paul cannon]

or use harder wood like cedar and fir
i mainly use pvc for decks for surfboards

[wouter]

The only thing i know about kiteboards, is that 200kg/m3 is not even good enough for foamies.
You should go with wood loaded in the grain direction. balsa, or whatever. that is real strong and will last on the foot pressure. Any other material will fail.
i was told so by the supplier of materials to the biggest kite board builder in my country, brunotti.