Mastering How To Increase A Stitch When Knitting: A Comprehensive Technical Guide

Increasing a stitch in knitting involves creating a new loop from existing fabric to expand the width of a project, typically performed using either lifted or yarn-over methods. Achieving a professional finish requires selecting the appropriate increase type based on the desired visual density, fabric tension, and whether you need a decorative eyelet or a nearly invisible, closed-fabric structure.

Essential Preparation and Technical Prerequisites

Before beginning any increase sequence, ensure your gauge consistency remains stable. Knitting increases intentionally disrupt the established stitch count, which can alter the structural integrity of the fabric if tension is not managed correctly at the junction point.

• Essential Gear and Materials
• Knitting needles appropriate for your yarn weight (e.g., circular needles for large circumferences or DPNs for narrow tubes).
• Standard wool or synthetic yarn with defined elasticity (avoid highly novelty yarns for learning).
• Locking stitch markers to track the specific row or stitch where the increase occurs.
• Measuring tape calibrated in both imperial and metric units to verify expansion growth.
• Prerequisite Knowledge: You must possess a firm grasp of the knit stitch, the purl stitch, and the ability to identify the "bar" between two stitches on your needle.

Procedural Workflow for Precision Stitch Expansion

Step 1: Executing the Make One Left (M1L) Increase

The M1L is a foundational invisible increase that leans to the left, making it ideal for symmetrical garment shaping.

1. Use your left-hand needle to pick up the horizontal strand (the "bar") connecting the stitch you just worked and the next stitch on the left needle.
2. Insert the needle tip from the front to the back of this bar.
3. Your left needle tip should now be pointing toward the back of the work.
4. Insert your right-hand needle into the back loop of this lifted strand and knit it as you would a standard knit stitch.

Pro-Tip: If the stitch feels excessively tight, ensure you are not accidentally twisting the base of the bar incorrectly; the resulting stitch should sit flush with the surrounding fabric without creating a visible hole.

Step 2: Executing the Make One Right (M1R) Increase

The M1R functions as the mirror image of the M1L, leaning to the right to provide balance in shaping panels or raglan sleeves.

1. Use the left-hand needle to pick up the same horizontal bar between stitches, but this time, lift it from the back to the front.
2. The bar should now sit on the needle with the front leg appearing on the right side.
3. Insert the right-hand needle into the front of this loop and knit it normally.

Warning: Failing to lift from the back to the front will result in a M1L instead of an M1R, throwing off the symmetry of your garment’s structural lines.

Step 3: Utilizing the Yarn Over (YO) Increase

The yarn over is a functional increase that creates a decorative eyelet, widely used in lace knitting or for creating buttonholes.

1. Bring the working yarn between the two needle tips to the front of the project.
2. Drape the yarn over the right-hand needle from front to back.
3. Proceed to knit the next stitch on the left needle as instructed by your pattern.
4. On the subsequent row, work the yarn over as a standard stitch to lock the eyelet in place.

Step 4: The Knit-Front-and-Back (KFB) Increase

The KFB creates a visible horizontal bar at the base of the stitch, often used in garter stitch or ribbing where decorative texture is preferred over seamless construction.

1. Knit the next stitch on the left needle, but do not drop the original stitch off the left needle.
2. Move the right-hand needle tip to the back of the same stitch, inserting it into the back loop.
3. Knit into the back loop and then drop the original stitch off the left needle.
4. You have now effectively turned one stitch into two.

Technical Comparison of Increase Methods

Common Site Failures and Field Fixes

• Loose Tension at Increase Points: If you notice gaps or elongated loops at the site of your increases, the root cause is often pulling the working yarn too far away from the needles. Fix this by keeping your yarn tension consistent and "pinching" the needles together slightly while pulling the new stitch through.
• Incorrect Stitch Count: A frequent error is forgetting to account for the new stitch on the next row. Remedy this by placing a locking stitch marker at the site of the increase to ensure you verify the count during the next pass.
• Twisting the Increase Unintentionally: If your increases appear messy or uneven, you likely twisted the lifted bar in the wrong direction during an M1 or KFB. Ensure your loop orientation matches the standard "V" shape of the surrounding stockinette stitches.
• Hole Formation in "Closed" Increases: If you are attempting an M1L/R but a hole appears, you are likely picking up the bar too aggressively. Try picking up only the top strand of the bar rather than the entire structure to minimize displacement of the adjacent stitches.

Frequently Asked Questions

Which increase method is best for beginners?

The Knit-Front-and-Back (KFB) is generally recommended for beginners because it does not require manipulating the horizontal bar between stitches, reducing the risk of dropping loops. It provides a tangible increase that is easy to visualize as you move through your pattern.

How do I decide between an M1L and an M1R?

Use an M1L when the increase needs to lean toward the left side of your work, and use an M1R when it needs to lean toward the right. Most professional patterns specify which to use, but a general rule is to lean the increases toward the center of the garment or toward the edges of a shaping section.

Does a yarn over create a larger hole than other increases?

Yes, a yarn over creates a deliberate eyelet or decorative hole by design. It is functionally distinct from "closed" increases like the M1 or KFB, which are intended to keep the fabric density uniform without creating visual gaps.

Can I substitute one increase for another in a pattern?

You can substitute them, but be aware that substituting a KFB for an M1L will change the visual texture of your project. If the pattern relies on invisible shaping, stick to M1L/R; if the pattern is a simple accessory, the visual bar created by a KFB may be an acceptable aesthetic choice.

How do increases affect the overall gauge?

Increases directly alter your stitch count, meaning they increase the width of your work. Always verify your stitch count at the end of every increase row to ensure you have maintained the growth rate required for your project dimensions.

Refine your fiber arts proficiency by practicing these increase techniques on a swatch before applying them to a full-scale garment. Dedicating time to master these fundamental structural movements ensures your projects achieve the professional, tailored fit you desire.