Studio Office Cabinet Progress — Primed & Sanded (Plus, When To Use Wood Filler vs. Caulk)

The good news is that the whole cabinet unit in the office area of the studio has now been wood filled, sanded, primed, and sanded again. So after a little bit of caulking, it will be ready for paint! The final color will be pink, but I do love that I can finally see it all one color now. The last time I showed you the progress, it looked like this…

And now that the whole thing is primed and sanded, it looks like this…

To prime the cabinets, I used Zinsser B-I-N Shellac-Based Primer. It’s a new favorite product for me. I used it for the first time on the ceiling of the front porch when I repainted it back in April of 2023. The first time I painted the ceiling, I didn’t prime the wood at all, so all of these knots had seeped through the paint.

And today, almost a year later, there’s not a single knot showing through the new paint. It still looks like it did the day I took this picture after repainting the ceiling.

So I highly recommend it when painting wood that has never been primed and painted before, or when trying to cover knots, stains, etc. I also used it on the studio floor before I painted it, and the floor, although it’s very dirty and dusty and in desperate need of a good scrubbing, is holding up amazingly well.

This order actually helps to highlight those areas that need caulk. When I caulk before priming, I often see areas that I missed because they were harder to see. But when I prime before caulking, it’s hard to miss those areas that need caulk. They stick out like a sore thumb.

When the primer is a bright, clean white, these cracks that need caulk are hard to miss.

While I’ve gone over this information before, I do want to clarify when I use wood filler, and when I use caulk. It’s very simple. If I’m wanting to create a seamless, very smooth surface, I use wood filler. For example, this area where the front trim piece attaches to the side plywood piece had a small crack between the two pieces. I filled it with wood filler, and then used my electric sander with 120-grit sanding discs to sand it perfectly smooth. Now that it’s primed, it looks smooth and seamless.

Here you can see the same thing on the outside panel. Where that front trim meets the side plywood, it looks seamless. That’s from using wood filler, and then sanding it perfectly smooth before priming, because it certainly wasn’t seamless before the wood filler and sanding.

I also fill nail holes with wood filler so that they can be sanded perfectly smooth as well.

Caulk, on the other hand, is used to fill areas that don’t need to be a smooth, flat surface. Anywhere where there’s a change in plane, like where the trim meets the cabinet box, or one trim meets another trim, those areas are filled with caulk.

I do have an exception to that rule on this cabinet. This area where the tall side cabinets meet the short middle cabinets, there are two pieces of trim that meet on the same plane.

However, I’m going to use caulk here because I don’t necessarily want or need these to turn out looking perfectly smooth and seamless. I’m okay with them looking like two separate pieces, but I just don’t want that deep crack there.