Walk into any longarm studio and you will find strong opinions about thread. After stitching miles of it on Gammill machines here at Linda's, I can tell you the truth: there is no single best thread, but there is absolutely a best thread for each job. This hub breaks down every major thread line we carry by fiber, weight, and use case, and links you to our deep-dive guides on each one.
Quick Answer: Which Thread Should I Buy?
For all-around longarm quilting, the two threads that dominate professional studios are Fil-Tec Glide (40wt trilobal polyester with a gorgeous subtle sheen) and Superior Omni (40wt poly-wrapped poly with a matte finish). Start with a white, a cream, and a medium gray in one of those two lines and you can quilt 80% of the tops that come off a longarm. Shop the full Glide King Spool collection and Omni Cones collection.
Decision 1: Fiber - Polyester vs Cotton
Modern polyester quilting thread is strong, lint-free, colorfast, and runs at longarm speeds without breaking. Cotton gives a traditional matte look, sinks into the fabric beautifully, and is the purist's choice for heirloom quilts - at the cost of more lint and slightly lower tensile strength. There is no wrong answer, but if thread breaks and lint buildup are frustrating you, switch to poly.
Decision 2: Weight
Thread weight runs backwards - the higher the number, the finer the thread. 40wt is the longarm standard: visible texture, strong seams. 50wt is the piecing and everyday quilting weight. 60wt disappears into the quilt, making it ideal for bobbins and background fills. 100wt is nearly invisible - the micro-stippling and stitch-in-the-ditch specialist.
The Thread Lines, Compared
Fil-Tec Glide - 40wt Trilobal Polyester
The best-selling thread at Linda's. Glide's trilobal fiber gives quilting a soft luminous sheen, it runs virtually lint-free, and the 5,500 yard king spools are studio-scale economical. Nearly 300 colors, and Magna-Glide pre-wound bobbins with magnetic cores eliminate backlash on longarm machines. Start with Glide 10000 White, explore Magna-Glide Delights bobbins, and see the Corey Pearson Glide collection - the colors I reach for on customer quilts every week.
Superior Omni - 40wt Matte Polyester
Omni is the workhorse: a poly-wrapped poly core with a matte, cotton-like finish that blends rather than shines. It is slightly stiffer than Glide, which some machines prefer, and the 6,000 yard cones are priced for production. Over 170 colors - see Omni 3002 Natural White and the Omni Variegated collection.
Superior So Fine! #50 - 50wt Matte Polyester
When you want the quilting texture without the thread announcing itself, So Fine is the answer. It is a favorite for computerized edge-to-edge work and dense custom fills. See So Fine 401 Snow and the full So Fine collection.
Superior Bottom Line - 60wt Bobbin Thread
A 60wt filament poly designed for the bobbin: more yardage per wind, less bulk in the quilt, and clean tension against any top thread. See the Bottom Line cone guide and Bottom Line collection.
Superior MicroQuilter - 100wt Polyester
Nearly invisible. Micro-stippling, stitch-in-the-ditch, and dense background work where the texture should show but the thread should not. See the MicroQuilter guide.
King Tut and Signature Cotton - The Cotton Champions
For traditional and heirloom quilts, Superior King Tut is a 40wt extra-long staple Egyptian cotton with stunning variegated colorways, and A&E Signature Cotton covers the solid basics on longarm-sized cones - browse the Signature collection and King Tut collection.
Aurifil - The Piecer's Standard
Aurifil 50wt Mako cotton is the piecing thread quilt shops are built on: fine, strong, low-lint seams that press flat. See our Aurifil anchor guide and Aurifil 2600 White Dove, the single most useful spool in quilting.
Fantastico, Floriani, and Quilters Select
For variegated drama, Superior Fantastico shifts color every inch. For machine embroidery, Floriani and Quilters Select from RNK round out the studio.
Matching Top and Bobbin
You do not need to match fibers top and bobbin - poly top over cotton bobbin and vice versa work fine with correct tension. The professional formula: 40wt on top for visible texture, 60wt Bottom Line or a Magna-Glide pre-wound in the bobbin. If tension is fighting you, check the bobbin case first - our Towa tension gauge guide shows how to dial it in by the numbers.
Frequently Asked Questions
- What thread do professional longarm quilters use?
- The two most common are Fil-Tec Glide and Superior Omni, both 40wt polyester on large cones. Glide when a subtle sheen is wanted, Omni when a matte blend-in finish is wanted. Both run at high speeds with minimal breakage and lint.
- Is polyester thread safe for quilts?
- Yes. The old warning that poly thread cuts cotton fabric dates to 1970s serger thread. Modern trilobal and filament polyesters are smooth, dimensionally stable, and used on show quilts and heirloom quilts everywhere.
- What weight thread is best for quilting?
- 40wt for visible quilting texture, 50wt for a balanced all-purpose look, 60wt for bobbins and blending, 100wt for invisible micro work. Higher number means finer thread.
- Can I use embroidery thread for quilting?
- You can - 40wt trilobal embroidery polys like Glide and Floriani are excellent quilting threads. Avoid loosely twisted rayon for quilts that will be washed heavily.
- Why does my longarm thread keep breaking?
- In order of likelihood: a burred or wrong-size needle, tension set too tight, thread path threading error, or old brittle thread. A fresh Groz-Beckert needle and a Towa-gauged bobbin case solve most breakage. A drop of silicone lubricant like Ease-A-Thread helps stubborn metallics and older thread.
- How much thread does one quilt use?
- An edge-to-edge queen uses roughly 1,000-1,500 yards on top plus similar in the bobbin. Dense custom work can triple that. A 5,500 yard Glide king spool typically quilts 3-4 queens.
Not sure where to start? Grab Glide in White, Cream, and Cool Grey 3, a jar of matching Magna-Glide bobbins, and you are equipped for most customer work. Browse all thread lines in our Glide, Omni, So Fine, Bottom Line, King Tut, and Signature collections.
