Maintenance Committee – Kerfing

We are now seeing the turf reduction project coming to fruition throughout our community. Attractive plantings have replaced our sod in specifically chosen areas and they lend an aesthetically pleasing look to our overall landscaping.
One major change has occurred at our bluff area adjacent to the asphalt by the gate opening to the path to the beach. This change has nothing to do with new plants. We now have concrete steps and platforms in this area. Preparation for this job required implementation of wood framing prior to pouring the concrete. Because of curves in the design, kerfing of the wood framing was used on the boards to achieve the desired shape.
What is “kerfing?” (See attached photo) Kerfing is cutting a series of kerfs (cuts) in a piece of wood in close proximity so that the wood can be curved.
This method accomplishes a reduction in stock thickness, while allowing room (between the cuts) so the wood can bend back on itself. The depth of the kerfs and their spacing are the important factors and are variable. Deep kerfs, closely spaced are used for the sharpest bends. If the kerfs are too deep the wood will crack and conversely, if they are not deep enough, the wood will notbend. Kerfing should only be done by crosscutting. It may split the wood if the cuts go with the grain. Another important element of successful kerfing is even spacing of the cuts. Almost any saw can be used for this, table saws, circular saws, jigsaws, and even a handsaw will do the job. A radial arm saw is the most ideal for long sections.
The final step of the project will be calling upon our Maintenance staff to install attractive skateboard deterrents.
—Suzanne Enis