QUOTE(phoenix69 @ Jan 10 2013, 05:24 PM)
1. The slope tile is a "gift" from the tiler who is a relative. A very experienced sifu. No spec is given as he just did it up to his experience and skills. Good for water splash and clean up.
2. Follow tile width (600mm). Never heard of 620 mm tiles before.
3. Yup. Almost everyone do it this way.
4. Install cabinet without backing?!? Never thought of it.

Do not think it can save much, . Anyway if you think about it, a tiled wall may not be as even as you think..
After 6 months of renovating my house, now planning for concrete top for wet kitchen.
1- The slope was in my planning but again the Feng Shui was saying stove have to be lower than the sink.

. So.. If I did the slope, then the stove is higher than the sink.
2- Yes, you can't find 620 mm tiles. But if I do the slope, it will be 600 tiles + 50 slope = 650mm.
Side wall 600mm and base 575mm. (my planning)
3- I find 600mm for stove is bit small. Having 600mm top, the wok edge to the wall left between 25-50mm. The wall will be very hot.
4- Wall eveness is not a big issue here, cos u will put silicon to the join. And it so easy to clean even if it is wet.
As for saving may be not much.
I'm planning to order the panels and install DIY.