Understanding Seam Allowance- An Essential Guide for Sewing Pattern Users
Do sewing patterns include seam allowance? This is a common question among sewists, especially those who are new to the craft. Seam allowance is an essential component of any sewing pattern, and understanding its role is crucial for successful garment construction. In this article, we will explore what seam allowance is, why it is included in sewing patterns, and how to work with it effectively.
Sewing patterns are detailed instructions that guide sewists through the process of creating garments or home decor items. These patterns include various markings, notches, and measurements to ensure that the final product fits the intended size and style. One of the most important aspects of a sewing pattern is the seam allowance.
Seam allowance refers to the additional fabric that is included around the edges of a pattern piece to allow for the joining of two pieces during sewing. Typically, this extra fabric is 1/4 inch (6.35 mm) wide, but it can vary depending on the type of fabric and the desired finish. The seam allowance serves several purposes:
1. Ease of Construction: The extra fabric allows for a smooth and even join when sewing two pieces together. It provides a buffer zone that can accommodate minor discrepancies in cutting or pinning.
2. Finishing Touches: Seam allowances are often finished with various techniques, such as pressing, topstitching, or serging, to give the garment a polished look.
3. Safety Margin: The seam allowance provides a safety margin that can be trimmed if necessary. This is particularly useful when working with tricky fabrics or when a garment needs to be altered for fit.
4. Pattern Accuracy: Including seam allowances in the pattern ensures that the final garment size is accurate. By adding the seam allowances to the pattern measurements, sewists can cut their fabric to the correct size without having to add extra width.
To work with seam allowances effectively, follow these steps:
1. Cut the Fabric: Lay out your fabric according to the pattern instructions, ensuring that the grainline is parallel to the selvage. Cut the fabric to the size indicated on the pattern, including the seam allowances.
2. Mark the Seam Allowances: Use a ruler and a marking pen to draw a line 1/4 inch (6.35 mm) from the cut edge of each pattern piece. This line represents the seam allowance.
3. Pin and Sew: When sewing the pieces together, align the raw edges with the drawn seam allowance line. This ensures that the finished garment will have the correct dimensions.
4. Press and Finish: After sewing, press the seam allowances open or to the side, depending on the pattern instructions. Then, finish the seam allowances with your preferred technique, such as topstitching or serging.
In conclusion, seam allowances are an integral part of sewing patterns, and they play a vital role in the construction of garments and home decor items. Understanding seam allowances and how to work with them will help you achieve professional-looking results in your sewing projects. So, the answer to the question “Do sewing patterns include seam allowance?” is a resounding yes, and it is essential to pay attention to them to create beautiful and well-fitting creations.