Bath Panel Board - Tile Advice

[bureaucrazy]

What's the best way to make a bath panel that will be finished with 9mm thick porcelain tiles?
The bath only has room for a 6mm thick backer board to tile onto (18mm total clearance). I think 6mm ply would warp as the adhesive dries. No more ply would be ok but only comes in sheets 1200mm long but the bath is 1800mm.

 

[Dave]

Can you not make the panel proud and use flat edge tile trim to finish , this will allow a more substantial substrate.

If you use 6mm then the frame work uprights will need to be closer for support.

 

[bureaucraz]

The restricted space is at the top as the bath already has a wood under the rim. I think it may be possible to reinforce the panel along the middle but I want to keep it simple by using a stiff board instead of plywood but worry it may not be strong enough to support heavy tiles.

 

[Dave]

I know what you mean , if you support it enough , the 6mm would suffice .
It's all in the deflection of the panel.

But a frame could be made independent of the wood under the bath edge and set this back to accommodate a thick board. This also depends on the framed leg structure of the bath supports .

Hope this helps,

 

[Sean Kelly]

6mm backerboard screwed to a wooden frame. Hardiebacker comes in 1200x800, but you will need an access panel for the taps.

 

[bureaucrazy]

6mm backerboard screwed to a wooden frame. Hardiebacker comes in 1200x800, but you will need an access panel for the taps.

So, it seems that no 6mm backerboard comes in a size greater than 1200mm?

I have seen clips that can be used to make the whole panel removable.
It looks like it will be necessary to make a panel from at least 2 pieces of backer board, reinforced at the back, apart from where the legs get in the way.

Might be possible to have 2 pices of backerboard with another piece glued onto the back holding them togethr like a sandwich?

Just seems pretty awkward compared with a single piece of board 1800mm long

 

[cam_low]

I took one out the other month which was constructed of 40mm cement board in one length. great idea and no need for a box frame, just some supports to sit against on the floor and side walls, assuming that the bath is enclosed against two walls. if you have a return to do, then some extra supports will be needed.