First, this design isn't necessarily my own. It's a common mid century design that I added some of my favorite details to. Mainly the box joinery. Sorry about the images being smaller, I only took these with my iPhone and updated my progress on Instagram a while back. My Instagram is @jessemckee if you enjoy following woodworkers like I do.
I didn't come up with plans for this since I judged the height first by the height of my couch, then by proportion of the legs and box opening last. The end product ended up being 24x48" and the box is 9.5" tall and the legs are 6" tall.
My favorite wood is walnut and I ordered around 30 board feet of 4/4 S4S (surfaced on all 4 sides) from my local hardwood dealer. I ordered a bit extra for possible mess-ups, so not sure what my table ended up using.
All the materials for this project totaled to roughly $175. That's for the wood and finish.
I roughly cut my pieces to size with a couple inches longer than needed for good measure (in case I screwed up my box joints later) then ran all my boards through the thickness planer first to guarantee a perfect glue-up. With the wood being S4S, this saved a lot of time not having to use the jointer.