Related for Eruvin 201:2
<big><strong>גמ׳</strong></big> ורמינהו דלת הנגררת ומחצלת הנגררת וקנקן הנגרר בזמן שקשורין ותלויין נועלין בהן בשבת ואין צריך לומר ביום טוב
FROM THE GROUND.<span class="x" onmousemove="('comment',' If they reach the ground this is forbidden, since their erection resembles 'building'.');"><sup>6</sup></span> <big><b>GEMARA: </b></big>Does not the following, however, present a contradiction:<span class="x" onmousemove="('comment',' To the ruling in our MISHNAH:');"><sup>7</sup></span> With a door, a reed-mat or a keg,<span class="x" onmousemove="('comment',' Aliter: A plough used as a bar.');"><sup>8</sup></span> that drag along the ground,it is permitted. whenever they are fastened and suspended, to close an opening on the Sabbath and much more so<span class="x" onmousemove="('comment',' Lit., 'and there Is no need to say'.');"><sup>9</sup></span>