Mo'ed Katan 1:8 - Rabbi Joel Padowitz On The Mishnah

Moed Katan1: 8

הַהֶדְיוֹט תּוֹפֵר כְּדַרְכּוֹ, וְהָאֻמָּן מַכְלִיב. וּמְסָרְגִין אֶת הַמִּטּוֹת; רַבִּי יוֹסֵי אוֹמֵר: אַף מְמַתְּחִין.

An unskilled person may sew in his usual manner, but an artisan may sew only with irregular stitches. We may interlace [supports for] beds. R' Yose says: We may even tighten them.

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