Sorry, no pics of the top shelf construction but it's the same as that lower one following.
Next, the lower shelves. These were measured so the forward 1200mm of the shelf fitted Decor containers which have a 90mm base. The rear shelf 1200mm was made for two expanding Silicone wash "bowls" (one of them is rectangular).
I made the shelves from 6mm ply, then glued 8mm tri-quad to the edge. I then glued a 30mm x 3mm rounded piece to the vertical edge. It took some gymnastics with clamps to hold everything in place. The glue I have used almost thoughout the following posts is Parfix Builders Adhesive.
I sanded the top rounded edge so its more fully rounded and less likely to chip.
The shelves were given three coats of Monocel Gold (Marine Grade) - Exterior Wood Varnish in Gloss. I like this product as it's turps cleanup and the water based one I've recently tried causes ply to warp.
Plastic crate, battery box, plastic bucket and chuck of wood - holds the end of the shelf in position while the glue sets. Note the grey hull-liner installed on port and starboard sides above the stringer.
Some screws help the shelf stay in place while the glue sets as well
The rear lower shelf is fastened to the four vertical tables supports (more later), but the front shelf had nothing handy and I definitely did NOT want to place fasteners into the stringers of very light timber. So, I epoxied four pieces of 75 x 40 x 12mm hardwood to the hull and sandwiched the shelf between these and the stringer - as follows...
You can't see it in the picture but you can see the interesting use of clamps used as push-clamps in the pic. The shelf has four of 80 x 40 x 5mm rounded trim glued underneath to which is screwed four right angle 50 x 50mm right angle stainless steel shelf brackets. These were then screwed to the hardwood not-yet glued to the hull, adjusted for correct fit (read bend the bracket) then the hardwood epoxied to the hull and push-clamped. I exited the boat that day very gingerly.