Knitting How To Increase: The Definitive Guide To Increasing Stitches

Mastering knitting increases allows you to shape garments, craft seamless lace, and design custom sweaters that fit perfectly. This comprehensive guide details the mechanics, execution steps, and technical nuances of both invisible and decorative stitch-building methods.

Essential Preparation and Setup for Stitch Expansion

Expanding your stitch count requires more than just picking up needles and yarn; it demands an understanding of how fabric stretches, drapes, and reacts to tension. Whether you are shaping a sleeve cap, widening a shawl, or waist-shaping a pullover, your choice of increase will dictate the structural integrity and aesthetic of the final garment.

• Essential Gear and Tools: A pair of working needles matched to your yarn weight, a set of locking stitch markers to track shaping intervals, a measuring tape for gauge verification, and a tapestry needle for weaving in ends.
• Prerequisite Knowledge: Mastery of basic knit and purl stitches, familiarity with reading knitting schematics, and an understanding of yarn twist orientation (right-leaning versus left-leaning slants).
• Time and Budget Benchmarks: Project timelines vary based on garment complexity, but practicing individual increase techniques requires roughly 30 to 45 minutes of swatch dedication using scrap worsted-weight yarn and US 8 (5mm) needles.

Step-by-Step Guide to Executing Essential Increases

Step 1: Mastering the Make One Left (M1L) and Make One Right (M1R)

The Make One family of increases represents the industry standard for virtually invisible, fully fashion-shaped garments. These techniques create a new stitch by lifting the horizontal strand between two stitches on the needle and working into it.

To execute a Make One Right (M1R), insert your left needle from back to front under the strand of yarn running between the stitch you just worked and the next stitch on the left needle. Insert your right needle into the front of this lifted strand and knit it through the back loop. This twists the strand to close the gap and causes the resulting stitch to lean to the right.

To execute a Make One Left (M1L), insert your left needle from front to back under the same horizontal strand between stitches. Insert your right needle into the back of this lifted strand and knit it normally. This twists the yarn in the opposite direction, creating a clean stitch that leans to the left.

Pro-Tip: Always pair M1R and M1L symmetrical increases at garment edges. Use M1R on the right edge of your work and M1L on the left edge so the slants mirror one another seamlessly.

Step 2: Executing Knit Front and Back (KFB)

The Knit Front and Back (KFB) increase is a reliable, visible method commonly used in top-down sock cuffs, raglan sweater seams, and beginner projects because it requires no lifting of floating strands.

Begin by knitting into the front of the designated stitch as you normally would, but do not slip the stitch off your left needle. Instead, swing the tip of your right needle around to the back of the same stitch on the left needle. Insert the right needle into the back loop of that stitch and knit it again. Now, slip the original stitch off the left needle. You have successfully turned one stitch into two.

Warning: KFB leaves a small horizontal bar, resembling a tiny purl bump, on the right side of the fabric at the base of the new stitch. Avoid using KFB in smooth, stockinette-heavy areas where complete invisibility is required.

Step 3: Working Lifted Increases (RLI and LLI)

Right Lifted Increase (RLI) and Left Lifted Increase (LLI) anchor directly into the stitches of the row below, offering superior stability and minimal distortion.

For the Right Lifted Increase (RLI), look two rows down directly below the first stitch on your right needle. Locate the right leg of that stitch and use your right needle tip to lift it onto the left needle. Knit this lifted loop through the front.

For the Left Lifted Increase (LLI), go one stitch to the left of the stitch you just worked. Find the row below, locate the left leg of that stitch, lift it onto your left needle, and knit it through the back loop.

Technical Comparison of Knitting Increase Methods

Common Shaping Mistakes and Field Fixes

Even experienced knitters encounter tension issues and counting errors during shaping sequences. Recognizing these structural flaws early prevents cascading layout failures.

• Root Cause: A large, gaping hole appears where an M1 increase was executed.
  
  
  • Actionable Fix: You likely failed to twist the lifted strand during execution. Ensure you knit through the correct loop (back loop for M1R, front loop for M1L) to tighten the base of the new stitch.
• Root Cause: The increase edge looks bumpy and disrupts the stockinette smoothness.
  
  
  • Actionable Fix: You are likely using KFB where a lifted or Make One increase is required. Rip back to the error point and switch to an M1L or M1R for an integrated finish.
• Root Cause: Asymmetric shaping causes the garment edge to pull to one side.
  
  
  • Actionable Fix: Verify your mirror-image pairing. Ensure that left-leaning increases are used on the right side of symmetry lines and right-leaning increases are used on the left.

Frequently Asked Questions

What is the most invisible knitting increase?

The Make One (M1) pair—specifically M1R and M1L—is widely considered the most invisible increase because it consumes yarn from the neighboring stitches without creating prominent bumps or ladders in stockinette fabric.

Should I use KFB or M1 for raglan sweaters?

M1 increases are preferred for raglan sweaters because they create a clean, professional line along the seam. KFB leaves a noticeable textured ridge, which works well for rustic or beginner garments but disrupts sleek design lines.

How do I know whether to use a right-leaning or left-leaning increase?

Use leaning increases to mirror your shaping. On the right side of a garment, use a right-leaning increase (like M1R or RLI); on the left side, use a left-leaning increase (like M1L or LLI) so the stitches flow outward harmoniously.

Can I increase in purl stitches?

Yes. You can execute purl equivalents of Make One increases (such as Make One Purl Right and Make One Purl Left) or work a Purl Front and Back (PFB) to expand your stitch count seamlessly on the wrong side of your fabric.

Elevate Your Handcrafted Garment Engineering Today

Mastering these professional stitch-building techniques transforms your handmade creations from amateur projects into polished, perfectly fitting wardrobe staples. Pick up your needles, cast down a practice swatch, and start shaping your knitting future today.