Guys, I'm looking for laminated table top
Size : 2.5ft X 5ft X 1 inch thick
I need around 10 pcs

Ikea quite expensive

Hello, everyone. Wood has a large number of advantages over concrete. It is cheaper, faster, lighter, easier to work with and it is renewable. Concrete is usually placed in wood forms, so there is a large amount of wood used in concrete construction anyway (you can clean and reuse it, but for a small project like a house there is a lot of it wasted)

Hi, is balau suitable for kitchen worktop?

Yes, quite suitable.  It's hardwood and durable vs water.  Used for wood decking and used to built traditional boats.

Can join several pieces BUT make sure it is done right otherwise the places where it is joined might split or come up (warping due to poor joint).

It doesn't have much grain on the wood (unlike oak) hence won't be a conversation piece for the kitchen but durable and functional.  Will look quite good if under proper lighting.