MDF kitchen island table top. Supports?

[robdewhirst]

I've built an island with a 3/4" MDF top, tiled w/12" sq ceramic tile and and edged w/ ~3/4" oak.

t's 35x 48 and offset on the base for about ~11" overhang on two sides.

Under the overhang on two sides, how many supports do I need under the table top surface? I am guessing two supports on the 35" span, but do I need more than two for the 48" long overhang?

Also, can I get by with an angled support where the offset overhangs meet?

[Robatoy]

2 brackets of 8" long should do.

That would be nice. There is a stress point there.

Make sure you use grouting that has some flex to it.

It would also help if you primed both sides of the MDF before installing the tiles.

r