Hi guys,

I was wondering if anyone out there would be able give me some advice. I have to model a 3D "turtle shell" for an artificial reef for one of my clients. I am new to sketchup, being an architectural technician I don't stray too far from AutoCad and Revit! If anyone has any ideas on how I can create this they would be most appreciated. Approx. dimensions are 8M long x 6M wide x 3.5-4M high.

Thanks in advance!