Board 28 Regular icon

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 28 28" width="24" height="24"><path fill="currentColor" d="M6.75 3A3.75 3.75 0 0 0 3 6.75v14.5A3.75 3.75 0 0 0 6.75 25h14.5A3.75 3.75 0 0 0 25 21.25V6.75A3.75 3.75 0 0 0 21.25 3H6.75ZM4.5 6.75A2.25 2.25 0 0 1 6.75 4.5h6.75v5h-9V6.75Zm0 4.25h9v12.5H6.75a2.25 2.25 0 0 1-2.25-2.25V11ZM15 23.5V18h8.5v3.25a2.25 2.25 0 0 1-2.25 2.25H15Zm8.5-7H15v-12h6.25a2.25 2.25 0 0 1 2.25 2.25v9.75Z"/></svg>