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Fitting Commercial Patterns




8 weeks

Session Dates

Oct 25 - Dec 13

Days/Times Offered (All PST)

W 10-11:30 am, or W 5:30-7 pm



The student will learn how to superimpose the sloper/basic block onto the commercial pattern and assess needed adjustments before moving to the muslin test garment. The pattern will be altered and a muslin test garment will be made to check the fit. The pattern will be updated to reflect the fitting adjustments.


  • A copy of your sloper/basic block in clear plastic (This should have all reference lines marked (waistline, high hip, low hip) and apex. I like polypropylene sheets (24 ½” X 45” X .020 smooth/matte, SKU #20346 grom Tap Plastics.)

  • Tape measure

  • Ruler and square, or gridded transparent ruler at least 18” long (here’s an example - see the 2” X 18” size)

  • Drafting curve (here’s Lynda’s favorite)

  • Paper for drafting (available in art or office supply stores, just make sure it’s at least 36” wide and copy paper weight)

  • Scotch tape

  • Pencils and erasers (colored pencils as well)

  • Pins

  • Medium weight muslin, unwashed

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