Jaggi, We guess that it is roughly 20-25'x 25-30'.

normally the breakfast counter height varies from 36" to 42" if you want it to be perfect height select the stools for the counter first then check the height of the stool and add 12" to 15' in the height. distance between the stool seat and table top should be 12" to 15" max...

Are you referring to Nano white crystallised glass also known as nano white marble as it replicates the look/shine of good quality white marble. Thanks, Nitin CORNERSTONE DESIGNS Bangalore

There is nothing special about Kerala climatic conditions that require anything special (yes, I have several years experience with kitchen cabinets there). You can use BS 710 or 303 plywood with laminate on them with excellent results. Several interior firms also use HDF/MDF with laminate without much complaints from their clients.