Can I Use a Serger as a Sewing Machine? What to Know

If you’re new to garment sewing, you’ve probably asked yourself: Can I use a serger as a sewing machine? It’s a common question, especially if you’ve just inherited a serger, found a great deal on a used one, or are trying to save space in your craft room by avoiding buying two separate machines. As someone who has been sewing professionally for over a decade, I’ve tested both tools extensively, and the answer is more nuanced than a simple yes or no.

First, let’s clarify what each machine is designed to do. A regular sewing machine is a multi-purpose tool that uses a lockstitch (a combination of top thread and bobbin thread) to sew straight stitches, zigzag stitches, buttonholes, and more. A serger (also called an overlocker) is a specialized machine that uses 3-4 cones of thread to create overlock stitches, which wrap around the raw edge of fabric to prevent fraying. Most sergers also have a built-in cutting blade that trims seam allowances as you sew, giving you a clean finish in one step.

If you’re unfamiliar with what a serger is and how it works, it’s worth reading up on its core functions before deciding if it can replace your regular machine.

What Is a Serger, and How Is It Different From a Sewing Machine?

To understand if a serger can act as a sewing machine, you need to know the core design differences between the two. Our comparison of sergers, overlockers, and coverstitch machines breaks down the technical specs in more detail, but here are the key takeaways for beginners:

Key Design Differences Between Sergers and Sewing Machines

• Thread system: Regular sewing machines use 1 spool of thread plus a bobbin. Sergers use 3-4 large cones of thread, with no bobbin required.
• Cutting blade: Nearly all sergers have a built-in lower blade that trims fabric edges as you sew. Standard sewing machines do not have cutting blades, so you need to trim seams manually with scissors.
• Stitch options: A basic sewing machine has 10-20 built-in stitches, including straight, zigzag, blind hem, and buttonhole stitches. A serger only sews overlock or coverstitches (some high-end models have a few extra decorative overlock options, but no straight stitches).
• Feed system: Sergers have differential feed, which lets you adjust the speed of the front and back feed dogs to prevent stretchy fabrics like knits from puckering. Most standard sewing machines have fixed feed dogs, though some high-end models have adjustable feed.
• Presser feet: Sewing machines use universal presser feet for zippers, buttons, piping, and more. Serger presser feet are specialized for overlocking, with a small opening to accommodate the cutting blade and multiple threads.

Can You Use a Serger as a Sewing Machine? The Short Answer

Technically, yes, you can use a serger to complete very basic sewing tasks, but it cannot fully replace a regular sewing machine for 95% of common sewing projects. Sergers are designed for one primary job: finishing raw fabric edges to prevent fraying. While they can sew seams on knit fabrics, they lack the core functions needed for garment construction, home decor projects, and repairs.

To put it simply: a serger is a specialist tool, while a sewing machine is a generalist tool. You wouldn’t use a bread knife to chop vegetables, even though both are knives. The same logic applies here: a serger can do a few tasks a sewing machine can do, but it can’t handle the full range of jobs a sewing machine is built for.

What a Serger Can Do That a Sewing Machine Can’t

• Finish raw edges in one step: A serger sews the seam, trims the excess fabric, and overlocks the edge all at once. A sewing machine requires you to sew the seam, trim it manually, then zigzag the edge separately.
• Handle stretchy knits without puckering: The differential feed on a serger adjusts to stretchy fabrics, so seams on t-shirts and leggings lie flat. Standard sewing machines often pucker knits unless you use a stretch needle and zigzag stitch.
• Create professional rolled hems: Sergers can make tiny, even rolled hems on lightweight fabrics like chiffon or silk in seconds, which takes much longer on a regular sewing machine.
• Sew heavy fabrics faster: A 4-thread overlock stitch is stronger than a standard straight stitch, making it ideal for heavy fabrics like denim or canvas. Sergers also sew faster than most regular machines, up to 1,500 stitches per minute.

What a Serger Cannot Do (That a Sewing Machine Can)

• Sew straight stitches: The most common stitch for garment construction, straight stitches are used for sewing woven fabrics, topstitching, and quilting. Sergers do not have the bobbin and needle mechanism required to create lockstitches.
• Attach zippers, buttons, or snaps: Serger presser feet do not accommodate zippers, and the cutting blade will slice through zipper tape. You also can’t sew buttonholes or attach buttons with a serger.
• Topstitch: Visible topstitching on pockets, waistbands, and hems requires a straight stitch, which sergers can’t do. Coverstitch sergers can mimic topstitching on knits, but they still can’t do straight topstitching on wovens.
• Quilt or sew thick layers: Quilting requires even straight stitches through 3+ layers of fabric and batting. Sergers will not hold these layers together, and the cutting blade may trim the quilt edges unintentionally.
• Use specialty feet: You can’t use blind hem feet, piping feet, or bias tape feet on a serger, which limits the range of projects you can make.

When Can a Serger Replace a Sewing Machine (Temporarily)?

There are very few scenarios where a serger can act as your only sewing machine, but they do exist for very niche sewers:

• Emergency repairs: If your regular sewing machine breaks down and you need to finish a simple knit garment (like a t-shirt or leggings) that only requires overlocked seams, a serger will work temporarily. You won’t be able to topstitch or add closures, but you can complete the basic construction.
• Exclusive knit sewers: If you only sew stretchy knit garments, never work with woven fabrics, and don’t add zippers or buttons to your projects, a serger (plus a coverstitch machine, or a combo serger/coverstitch) can handle most of your needs. You’ll still need a sewing machine if you ever want to topstitch or add closures.
• Small space living: If you have no room for two machines, and only make very basic knit projects, a combo serger/coverstitch machine may work. But you’ll be limited to knit fabrics and no closures.

That said, even in these scenarios, you’ll run into limitations quickly. For example, if you want to hem a pair of knit joggers, a serger can finish the raw edge, but you’ll need a coverstitch function (or a sewing machine) to sew the hem down flat. If you’re deciding whether to invest in a serger or stick with a regular machine, our guide to whether a serger is a necessary addition to your sewing kit can help you weigh your options.

Practical Tips for Using a Serger for Basic Sewing Tasks

If you only have access to a serger and need to complete a simple project, follow these tips to avoid common mistakes:

• Stick to knit fabrics: Overlock stitches are not strong enough to hold woven fabric seams together. Woven fabrics like cotton or linen require straight stitches, which sergers can’t sew. Your seams will fray and come apart after one wash if you use a serger on wovens.
• Use the right thread count: Use a 4-thread overlock stitch for heavy knits like sweatshirt fleece, and a 3-thread overlock for lighter knits like jersey. 2-thread overlock is only for finishing edges, not sewing seams.
• Adjust differential feed: If your knit fabric is puckering, increase the differential feed setting. If the fabric is stretching out, decrease the setting.
• Disable the cutting blade for delicate fabrics: If you’re working with thin fabrics like silk, turn off the cutting blade to avoid trimming too much seam allowance. You can trim the edges manually with scissors instead.
• Skip closures: Don’t try to sew zippers, buttons, or hook-and-eye closures with a serger. You’ll damage the machine and ruin your fabric.

Common Mistakes to Avoid When Using a Serger as a Sewing Machine

• Trying to sew woven garments: As mentioned earlier, overlock stitches do not lock together like straight stitches, so woven seams will come apart under stress.
• Using the wrong tension: Serger tension is very different from sewing machine tension. If your stitches are loose or puckered, adjust the tension dials for each thread individually, rather than using the default setting.
• Sewing over pins: Sergers sew much faster than regular machines, and the cutting blade will slice through pins, damaging the blade and potentially causing injury.
• Assuming all sergers are the same: Some high-end sergers have coverstitch functions, which let you mimic topstitching on knits. Basic sergers only do overlock stitches, so check your manual before starting a project.

Serger vs Sewing Machine: Which Should You Buy First?

If you’re new to sewing and on a budget, always buy a regular sewing machine first. Sergers are a secondary tool, not a primary one. A quality entry-level sewing machine can handle 90% of beginner projects, including tote bags, pillowcases, simple skirts, and knit t-shirts (using a zigzag stitch for seams). You can add a serger later if you find you’re sewing a lot of knits and want professional-looking seam finishes.

Combo serger/coverstitch machines are a good option if you have limited space, but they are more expensive than buying a separate basic sewing machine and serger. They also still can’t sew straight stitches, so you’ll need a regular sewing machine for woven projects and closures.

For intermediate sewers who already own a regular machine, a serger is a nice upgrade if you sew garments often. It will cut your seam finishing time in half and give your projects a professional look. But even experienced sewers never get rid of their regular sewing machine, because sergers can’t handle tasks like installing zippers or sewing buttonholes.

Frequently Asked Questions

Can a serger sew a straight stitch?

No, sergers do not have the mechanism to sew straight lockstitches. They use loopers to create overlock or coverstitches, which wrap around the edge of the fabric rather than interlocking top and bottom thread like a straight stitch. Even high-end sergers with hundreds of stitch options do not include straight stitches.

Can I use a serger to hem pants?

You can use a serger to finish the raw edge of a pant hem, but you cannot sew the final hem stitch with a serger. Most pant hems require a straight stitch (either topstitched or blind hem), which sergers can’t do. For knit joggers, you can use a coverstitch serger to hem the pants, but this won’t work for woven dress pants.

Is a serger the same as an overlocker?

Yes, serger and overlocker are two names for the same machine. “Serger” is the term used in the United States, while “overlocker” is used in the UK, Australia, and most other English-speaking countries. The terms are interchangeable.

Can a serger replace a sewing machine for quilting?

No, quilting requires straight stitches to hold multiple layers of fabric and batting together. Sergers create overlock stitches that do not interlock through all layers, so your quilt top will separate from the batting and backing. The cutting blade on a serger will also trim the edges of your quilt sandwich, ruining the project.

Do I need a serger if I have a sewing machine?

Not at all. You can use a zigzag stitch on a regular sewing machine to finish seams, which works for most beginner and intermediate projects. Sergers are a luxury tool for sewers who want faster, more professional seam finishes. If you mostly sew woven fabrics or don’t mind hand-finishing seams, you may never need a serger. For more guidance, check out our guide on whether a serger is right for your sewing setup.

Conclusion

So, can I use a serger as a sewing machine? The answer is yes, but only for very limited, niche tasks. A serger cannot replace a regular sewing machine for most projects, because it lacks core functions like straight stitching, zipper installation, and buttonhole sewing. If you’re new to sewing, invest in a quality regular sewing machine first, then add a serger later if you find you need professional seam finishes.

Remember: sergers are specialist tools, not generalist ones. They excel at finishing edges and sewing knit seams, but they can’t handle the full range of tasks a sewing machine can. If you already own a serger and are thinking of skipping a sewing machine, you’ll likely end up frustrated when you can’t complete basic projects. Stick to the right tool for the job, and you’ll get better results faster.