I LOVE/LOVE/LOVE how this project turned out. Talk about stepping out my comfort zone. Have you figured out what those countertops are made of yet? OSB! Yes, it’s that stuff you find purposefully hidden under the carpet.
Being creative with OSB is very European with a 50’s modern feel. I think they turned out great especially for use in a high impact area like the laundry room. We had a lot of counter space to cover, over the washer/dryer, the laundry side cabinet, and the utility sink cabinets. The left side of my brain was so excited to tackle such a unique and creative project. Anybody can do this, and the expense is minimal.
Oriented strand board (OSB) is an engineered wood, formed by compressing layers of wood flakes with adhesives in specific orientations. OSB is most commonly used as framing and structural sub floor, not meant to be a finished product.
The original design of OSB paid zero attention to aesthetics but if you’ve spent any time on a job site odds are you’ve seen wet subfloor after a rain. It really is kind of neat. The picture above shows the cosmetic difference between naked OSB to a half with a single coat of polyurethane.
High gloss Varathane poly from Menards was my only weapon of choice. Sanding the manufacturer stamps from the 4 X 8 sheat was probably the most physical task of the project. I used 80 grit sandpaper for that and 220 grit sandpaper between each coat of poly. I applied a total of seven coats using a 3 inch foam brush.
The cut edge of the OSB might be the most attractive part of the project. I didn’t double up the entire sheet but glued 4 inch strips along the perimeter of the underside and at the corresponding cabinet joints. This helped reduce weight and material cost. I also sanded the corners and edges to give a slight bevel to the finished product.