If you were here last week, you've already seen this
Which is based off of some tables in an image that I'd pinned a while back.
I reused the wood from the first thing I'd ever built (which fell apart, but I was too sentimental about to throw away), and didn't have enough wood to do the four sides with the "x", so my new design only calls for the x's on two sides.
my last bench, the plans don't include instructions for the top. Mine is a 17"x17" concrete slab, but you can make a wooden top or mosaic or plain tile.
3 - 1 x 3 @ 8'
1 - 1 x 2 @ 4'
1 1/4" outdoor Pocket Hole Screws
Outdoor Wood Glue (I use Titebond III)
1 - 17" x 17" top
4 @ 17"
4 @ 12"
4 @ 12 1/2"
2 @ 17", both ends pointed at 45-degrees
2 @ ~7 1/4", both ends pointed at 45-degrees
4 @ 17'
Build the sides as shown above with the 12" and 17" 1x3s using wood glue and 1 1/4" pocket hole screws. You'll make two of these.
Cut the long x-sides to the specifications above.
Build the non-x sides as shown above with pocket hole screws and glue.
Assemble the stool by screwing or nailing through the face of the "x" sides into the non "x" sides. You could also try to pre-drill pocket holes in the 1x2s to attach the outer sides, but I didn't have luck with that.