Backerboard is a rigid, moisture-resistant panel installed beneath tile in wet areas like showers, bathroom floors, and kitchen backsplashes. Unlike drywall, it doesn't rot when wet.
In practice
You'd see this when CRM Services is retiling a shower in Orchards, WA — backerboard goes up before any tile.
Why it matters
Relevant to any tile project — a professional detail homeowners often don't know to ask about.
Common questions
Can I tile over drywall?+
In dry areas, yes. In any wet area, you must use backerboard. Drywall behind tile in a wet area will eventually fail.
What brands of backerboard are available?+
Common brands include Hardiebacker, Durock, and Schluter Kerdi-Board.
Need this done right?
Talk to a real contractor.
Free onsite consultation and a line-item estimate you can actually read.