Hi Kelly,
First off I want to say that I love, love, love your blog!
I am emailing you today to get your take on MDF painted doors with glazing versus painted doors with glazing that have a hardwood frame and MDF center panel. Are there pros and/or cons to either and is there one that you would recommend over the other?
I look forward to your input!
Sincerely, Stanley
Thank you for the kind words, Stanley. I’ve been mulling this one over, trying to determine if I would recommend one over the other.
First of all, let’s clarify for readers who don’t know what we’re talking about.
The center panel of a cabinet door is a separate section from the frame. It’s built that way to allow for expansion and contraction of the panel, which happens whenever the humidity of the home rises and falls.

Remember the post where I discussed how a solid wood center panels were made? (I actually discussed the difference between wood and MDF doors.) The jist of the post is that a wood center panel isn’t made out of one piece – it’s made in pieces, butcher block fashion, to prevent the center panel from warping. But it will still expand and contract depending on the home’s humidity and overall climate.
In comparison, MDF doesn’t expand or contract. A center panel made from MDF won't shrink. This is good news for those in a dry climate where wood can sometimes shrink so much that it exposes the bare wood hidden inside the frame.
Wood is alive. It has dips, mineral streaks, knot-holes, and pin-holes depending on the wood. The joints swell and expand, causing cracks in the paints. While the knots can be filled, all of the above are part of what many consider the beauty of the door. On a wood door, the glazing tends to follow the slight imperfections of the door, as seen by the photo above.
Yet not everybody likes this traditional look. So the question becomes – do we even out all these areas, including the joints by producing an entire MDF door with glazing? Or do we split the difference and have a center panel of MDF and still have some movement which can cause paint cracks in a wood frame?
Here’s my two cents: Glazing is a traditional look. Those very dips and joint cracks on the frame are part of that "tradition". Yet I like the MDF center panel because it’s more stable, especially for a center panel because "paint" and "board expansion" has always been problematic. I like how the MDF panel takes paint, and doesn’t shrink or show the seams but I like the wood frame because it still lives us with joint cracks which are part of this style.
I might design a full glazed MDF door for a client who doesn’t want all the “flaws” but it all depends on the door style, the colors, and the detailing of the room. Some of the MDF doors with glazing...try too hard, if you know what I mean.
Either one of these might not find as much favor in traditional regions where the expectations are "all wood, all the time", but as always, it entirely depends on the consumers and their expectations. Seeing them all side-by-side can prove very helpful with the final decision.