Drafting a Men's Trouser Block

Drafting a Men’s Trouser Block

Drafting a Men’s Trouser Block

In this lesson, we shall teach you how to draft a men’s trouser block or sloper from measurements. This block, or sloper, will become the foundation for many of your trouser designs and patterns to come.









Module Description Step
1 First Steps 1-5
2 Drafting the Crotch, Hip, Knee & Grainline/Crease Line 1-9
3 Hem Circumference 1-3
4 Outseam & Inseam 1-5
5 Crotch Curve, Waistline, Side Seam & Dart 1-10
6 Pattern Notches, Oaktag Sloper & Annotations 1-7
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MODULE 1 • First Steps

Step Description
1 Our first step is to prepare our paper measuring 38” (96.5cm) wide by 48” (121.9cm) long.
2 Our first step is to mark a guideline 4” (10.2cm) from the outer edge of the paper. After we have done that we are going to take about 1” (2.5cm) and label that point as point A.
3 From point A, I am going to measure my #88 Outseam and please refer to our measurement charts for measurement specifications, along this line at 44” (111.8cm). My outseam is 44” (111.8cm) and at the end of that I am going to mark that as point B.


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