Given uneven soil (though generally rocky), I am using a series of raised beds for my peppers and other vegetables. I constructed four 4' wide beds (each about 32' long) last year and am building another half-dozen shorter beds (each 14' - 20') this year. I use rough-milled 2" x 8" lumber for the sides, and 20" sections of rebar sunk into the ground outside the bed to keep the long sides vertical (it is kind of pathetic compared with Paul's beautiful setup, but it works).

On my first four beds the short sides are 4' and are nailed inside the long boards. I am considering making the ends of my new beds 4'4" and nailing them as caps to the long sides to help keep the long sides from tipping outwards, at the expense of the interior support. Any thoughts of downsides to this arrangement?

Outward tipping has only been a significant problem on the first bed I made which had shorter rebar stakes. I suppose in subsequent years it may visit the others.