border-all

pnpm dlx shadcn@latest add https://opensourceicon.com/r/fa7-solid/border-all.json

<svg xmlns="http://www.w3.org/2000/svg" width="96" height="96" viewBox="0 0 640 640"><path fill="currentColor" d="M480 160v128H352V160zm0 192v128H352V352zm-192-64H160V160h128zm-128 64h128v128H160zm0-256c-35.3 0-64 28.7-64 64v320c0 35.3 28.7 64 64 64h320c35.3 0 64-28.7 64-64V160c0-35.3-28.7-64-64-64z"/></svg>