Bathroom flooring over wood boards


Daughter wants to lay tiles on her old, wooden-board bathroom floor. My elderly DIY book says leven first, using hardboard. Would MDF be a suitable alternative, or would plywood be better? What thickness? Also, what treatment to give the MDF/plywood before laying floor tiles? TIA, Bill
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

You're actually better with something like 6 or 10 mm Plywood sheet. Hardboard and MDF are softer, so warp much more than Plywood, and so stays more rigid under tiles.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.