Project #210 – Raised Garden Bed
There is a lot going on behind the scenes on this “Raised Garden Bed Project“. In fact, the “Panel Method” used here is the same that we will see for an entire series of projects including beds, bunk beds, dorm-room lofts and even for small structures. On the Panel Method projects there are several instances of Tenons on Steroids™ including our patented Threaded Tenon Joinery™ but also other joinery methods including Festool Dominos, biscuit joinery, dados and GRKs.
This Raised Garden Bed project consists of four permanently built “panels” and four posts. The panels can be constructed from a single cedar or treated board (off-the-shelf 1 x 10) and then left as a solid piece or cut out to highlight another material further in. There is also the option of building the panels from separate narrower boards (off-the-shelf 1 x 4s and 1 x 3s) using glue-ups. In either case the empty space between the outer frame will reveal all kinds of optional materials behind. The spaces behind the outer frame are all sized at 6 1/4″ x 16 1/4 which allows for placement of off-the-shelf 6 x 16 slate, the type found at Home Depot, Menards, Lowes or most flooring stores. Other options for filling the space include meshed steel (aka ————), vertical wood strips, metal strips, raw edge boards and more. (Check out the bed and bunk versions of this method where the inside of the panels can be filled with other materials such as carpeting to match that in the room….).
There are four posts. Since this is intended as an outdoor item we recommend cedar or treated. If the posts can be kept above ground with a non-wicking material they could probably be ash, douglas fir or other somewhat weather resistant species. These posts can be solid or can also be glue-ups. (Glue-ups will be found on most interior “Panel Method” projects such as beds, bunks, lofts since there we may want to use hardwoods ((cherry, oak, maple…)) not typically available in post thicknesses). The posts could also be square steel or aluminum tube as well. The panels are attached to the posts in “knock-down” format using our Threaded Tenons™.
The “floor” of the raised garden bed will vary with the intended content of the bed itself. If the end-user intends to fill the bed with dirt/mulch then “floor” structure will need to be constructed of materials and in a manner to support heavy and constantly wet filler including some supports that will need to extend to the ground. If the user will only place potted plants then the floor will be very strong but may not need the same materials or supports as for a solid filled bed. (These options will be addressed in the tutorial videos).