How to support quartz breakfast bar?

[ismellburning]

Hey all. I just had a 3cm thick quartz worktop installed in my kitchen. At one end is a breakfast bar, which runs a little over a metre beyond the last supporting kitchen carcass. Obviously this needs supporting (it’s currently resting on old worktop offcuts). I am going to use a 90mm thick post on one corner as a leg, and a batten at the back, screwed to a wall. Question: if I rest a sheet of plywood on top of the post, and on top of the batten, will it do a good job of supporting the worktop?

 

[robinbanks]

No.

For the dimenstions you've given (sounds like approx 1000mm x 600mm supported on the back by a wall, one side by the new cabinet and the other two sides form a free projecting corner) , a 30cm slab of quartz will self support the 900mm it needs to bridge; skip the plywood

 

[ismellburning]

Thank you this is encouraging. I have read in a few places that the longest unsupported span for quartz of this thickness is about 300-400mm so we’re obviously more than double that now - do you really think a metre long projection supported on one corner and along the back will be safe once a few people are leaning on the middle?

Follow up would the plywood, if i did it in the spirit of belt and braces, actually be doing anything or would it be pointless?

Very helpful input though thank you!

 

[thomp1983]

A picture would help us give advice