I start off by building the frames, these are cut from pallet wood slats. For consistency, I rip them all down to the same width on the table saw.

The 4 frames are mocked out on the tabletop and each corner is marked to locate the biscuit that will reinforce the miter joints on all the corners.

Then it’s just a matter of cycling through each piece and cutting the slot for the biscuits.

Glue is applied to the ends of the boards and biscuits are inserted, then I use a strap clamp around the frame to tighten up all the joints and hold it until the glue dries.

While that is drying I construct the main box for the living walls. This is also built from reclaimed wood, this time it’s old pine wall paneling. I rip it down to width on the table saw and then cut the miter on all the sides on the miter saw.

To assemble the boxes I glue and brad all of the corners. I use this corner clamping jig to hold things square and in place while I tack them together with brad nails.

I let these dry for about a half hour and then they are dry enough to work with. I run each side through the router table with a rabeting bit, one side fits a back panel and the other side fits a chicken wire to hold the plants in the box. I do it here after assembly instead of on the table saw prior to assembly because it’s reclaimed wood so it’s not perfectly flat. This ensures that I get a consistent dado all the way around.

The corners of the dados then just need to be squared up with a chisel and I install the backer panels within the boxes. These panels are made from PVC sheets, it’s a material I pulled out of the trash and it’s perfect for this because it’s waterproof.

To help hold the plants in place I install a chicken wire on the front of the boxes. This comes in a roll and I cut it down to size with some tin snips.

Now I can flip the box over and complete the assembly. I use the 3/4″ square pieces of pine as cleats to hold everything in place, this lets me attach it with very few visible fasteners, plus it gives it a nice trim line too. The cleats are screwed into the front frame first.

Then one screw is added at each corner to attach the frame to the box.

One of the last finishing details is to pull them apart again and apply a few coats of paint on the inside surfaces of the wood, this will help keep it from getting damaged when watering the plants.

I decided that the frames were just a bit plain and needed to be spiced up a bit. I use my tapering jig to hold them in place while I run them through the table saw for a shallow kerf cut at random different angles.

Then I fill these with thin strips of some light colored contrasting pine by gluing and hammering them in place. I then just shave them flat with a block plane and cut the ends smooth with a pull saw.

I think it adds just enough of an accent to make it fun to look at without being overbearing.

My finish of choice on this is linseed oil, I apply it to all the surfaces. It’ll protect the wood but also helps to bring out the detail in the kerf trim.

To keep these from leaking when they’re watered, I apply a bead of silicone caulking around all of the inside corners to make sure that everything is sealed up.

Now they all take a trip over to the florist to fill them up with goodies. We use green foam and cut it to fit inside the boxes, then fasten the chicken wire in place with staples.

Then we just install a mix of greens and flowers in the foam.

To install these in place I attach some D-ring hangers on the back of each box and mark out for screws in the wall to hold them up.