I am building a memorial bench out of live edge slabs. I liked the idea of the 'legs' matching the form and style of the seat and seatback slabs, so I decided to cut them out of my scrap slabs. Either side of the seat slab will be corner notched, and the notches will rest in the side pieces. The seatback will have a notch cut for the armrest and will be screwed to the side pieces. The seat and back will not extend more than an inch past the side pieces.
This outline shows my initial design for the side pieces. As the pencil marks are difficult to see I've created a second photo where I messily highlighted the cut lines in purple.
Are there any potential structural, construction, or even aesthetic issues with this design? I am aware that in a perfect world the wood grain should run at an angle down the legs to maximize strength, but given than I'm cutting this out of a single slab that's not possible. The legs are just under 2" at their thinnest point, which I believe should be sufficient to hold the bench and users?
This slab is approximately 1.5" thick, kiln-dried Cherry (approximately 7% moisture content). I am attempting to utilize as much of the natural edge as possible so the edges will not be cut straight; bark will be removed completely and the edges lightly sanded. Epoxy will be used to fill the cracks.
The armrest will be heavily sanded on each side to provided rounded edges for comfort, and is approximately 1". The seatback posts are sloped back at a 5 degree angle and approximately 2" at their thinnest point.
The underside of the seat will have two pressure treated 2x4s running the length and attached to the side pieces. An additional scrap piece of slab (approximately 1.5" x 3") will be run at the lowest center point to provide additional lateral stability.