Hi, I don't quite understand what you're after. Could you give us some more info?

Regular window size 4width X 4 height floor to window sill 3' kitchen window size 4 width X 3 height floor to window sill 4' if low sill means stove burner of due to air

One Follow-up question.. Is there any strength issue with 20mm Granite slab over 40mm Granite.. Are the 20mm granite slab prone to chipping or crack on normal usage.. Usage would be like, chopping vegetables, keeping hot vessels,.. The normal usage what happens in normal indian kitchen.. I just want to be sure that I decide based on experts judgement (like you), as people are just throwing their opinion based on their guess...

Following are the reasons for the honeycomb in the pictures shared by you: 1. Bad grade quality concrete mix that is higher portion of coarse aggregates with respect to fine aggregates and cement. 2. Also, it looks like the water cement ratio is less than 0.3. 3. Vibrators are not effectively used for efficient compaction.