When Rigid Heddle Width Actually Matters

October 8, 2025 by Comfy Zen
When Rigid Heddle Width Actually Matters

Every weaver has bought a loom. Then spent the next six months wondering if they bought the wrong size.

The 15" looked so manageable in the product photos. Then you wanted to make a shawl. The 25" seemed versatile until you realized it doesn't fit on your dining table and your apartment doesn't have a dedicated craft room because this is real life, not Pinterest.

The actual truth about loom width: it matters exactly three times in your weaving life. The rest of the time? It's theater. Marketing poetry about "versatility" and "project possibilities." But those three times it matters, it really matters. The difference between "I can make this" and "I need to buy another loom" levels of matters.

The standard advice is useless: "Buy the widest loom you can afford and have space for!" That's not advice, that's just... words. It's like telling someone to buy the biggest car they can park. Technically true. Completely unhelpful.

Because here's what actually happens in the field: Weavers with 30" looms making 8" scarves. Weavers with 15" looms staring longingly at baby blanket patterns. The 20" Goldilocks crowd acting smug until they want to make a queen-size throw and realize that's a floor loom project, not a rigid heddle situation at all.

Loom width determines exactly four things in your weaving life, and one of them might surprise you.

The Baby Blanket Problem

Baby blankets expose the first hard limit of loom width. Standard baby blanket dimensions: 30" x 40". Non-negotiable. You can't make a 28" baby blanket and call it "cozy." That's a baby towel.

Most rigid heddle looms max out at 32" wide. The Ashford goes to 48", but that's an outlier—a loom that costs as much as a used Honda and requires a dedicated table. The average weaver owns a 15" or 20" loom. Baby blanket? Not happening.

The math is brutal. A 15" loom can weave a 13" wide fabric after accounting for draw-in and shrinkage. That's a scarf. A generous scarf, but still a scarf. You'd need to weave three panels and seam them. At that point, you're not weaving a baby blanket, you're constructing one. Different project entirely.

Weavers with 25" looms hit the Goldilocks zone for baby blankets. Weave 23" wide, it shrinks to 21" in the wash, add 4" of fringe on each end, suddenly you've got a 21" x 30" blanket. Small, but legitimately blanket-sized. The baby won't care. The baby can't measure.

The 30" loom crowd can make proper 30" x 40" blankets, assuming perfect tension and accounting for shrinkage. This is why people buy 30" looms, then realize they're making kitchen towels 90% of the time.

The Shawl Situation

Shawls present a different calculation. Triangle shawls don't care about loom width—you're weaving a rectangle and folding it. But rectangular shawls, the ones that drape across shoulders like a meditation on elegance? Those need width.

A proper rectangular shawl measures 20" x 72". Anything narrower reads as "long scarf." The 15" loom weavers know this intimately. They've made a lot of long scarves while calling them "narrow shawls" and hoping nobody asks questions.

The 20" loom hits the minimum threshold. Weave 18" wide, accounting for draw-in, and you've got a legitimate shawl. Not generous, but legitimate. The kind someone could wrap around themselves without their arms showing.

Here's where it gets interesting: lace-weight yarn on a 12-dent reed changes everything. Suddenly that 15" loom can produce an 18" wide shawl because fingering-weight yarn has minimal draw-in. The physics shift. Weavers discover this accidentally, usually while trying to use up yarn from a failed sock project.

Shawl width also determines drape. A 15" shawl in worsted-weight yarn hangs like a board. A 20" shawl in the same yarn starts to move with the body. A 24" shawl becomes something people actually want to wear instead of something that lives in a drawer labeled "I made this."

Table Linens: The Width Sweet Spot

Placemats are the great equalizer. Standard dimensions: 12" x 18". Every loom from 15" up can make these. This is why every rigid heddle weaver has made placemats. They're the project that fits.

Table runners expose the hierarchy. A proper table runner measures 12" to 14" wide by 36" to 72" long. The 15" loom handles this perfectly. The 20" loom can make a 16" wide runner, which looks luxurious until you realize most tables are 30" wide and a 16" runner leaves 7" of table showing on each side. Proportions matter.

Here's the thing about table linens: weavers with 25" or 30" looms rarely make them. They're capable of making them, but they bought that width for bigger projects. Making a 12" wide table runner on a 30" loom feels wasteful. Like using a chainsaw to slice bread. Technically possible, but why?

The 15" and 20" loom crowd owns the table linen market. Kitchen towels measure 16" x 24", hand towels run 14" x 20", tea towels hit 16" x 28". All within the comfort zone of smaller looms. This is why people start with a 15" loom, make every kitchen textile in existence, then buy a 25" loom for the baby blankets they suddenly need to make.

Garment Panels: The Hidden Constraint

Garment weaving on a rigid heddle loom means thinking in panels. A vest requires two front panels and one back panel. A cardigan needs two fronts, one back, two sleeves. Each panel has maximum width constraints determined by your loom.

Standard adult back panel width: 20" to 24" before seaming. A 25" loom can weave this in one piece. A 20" loom cannot. You're seaming two panels down the center back, and that seam will be visible no matter how careful you are.

Sleeve panels typically measure 12" to 16" wide at the shoulder. Every loom handles this. But sleeve caps require pick-up stick shaping or decreasing, which changes the conversation entirely. Most rigid heddle garments use straight panels with seaming. The ones that don't use pick-up sticks are being made by weavers who've transcended the need for patterns—the kind of weavers who can read complex pattern notation without their eyes glazing over.

Here's what happens in practice: Weavers with 15" looms make scarves and call it a wardrobe. Weavers with 20" looms make vests. Weavers with 25" looms make cardigans, realize seaming five panels takes longer than the weaving itself, and go back to making scarves.

Garment width also affects fabric stability. A 12" wide panel in worsted-weight wool is stable. A 24" wide panel in the same yarn wants to bias. The fabric pulls diagonally during finishing. You can block it square, but it remembers. Wear it twice, and the diagonal memory returns.

The Scarf Exception

Scarves are the only project where narrow is better. A 5" to 8" scarf drapes. A 12" scarf strangles. Fashion scarves measure 8" to 10" wide by 60" to 70" long. Winter scarves go wider, 10" to 12", because warmth trumps drape.

Every loom can make a scarf. This is both the blessing and the curse of rigid heddle weaving. The 30" loom weaver making an 8" scarf has 22" of unused loom width. That's 22" of threaded heddle sitting idle. It works, but it feels wrong. Like buying a full-size truck to commute alone.

Narrow scarves also mean narrow warps, which means faster threading. An 8" scarf on an 8-dent reed requires 64 warp threads. A 20" towel on the same reed needs 160 threads. Threading time is linear. Narrow is faster.

But here's the efficiency calculation nobody mentions: loom waste is absolute, not proportional. Every project loses 18" to 24" of warp to loom waste—the unusable portions tied to the front and back beams. On a 5-yard scarf warp, that's 5% waste. On a 2-yard scarf warp, that's 12% waste. Make enough narrow scarves, and you're basically weaving garbage.

When Width Actually Doesn't Matter

Samplers don't care about width. Experimental weaving doesn't care. Color studies, yarn testing, playing with pickup sticks—all of these work on any loom width. This is why experienced weavers often own multiple looms but use the smallest one most frequently.

Coasters, bookmarks, mug rugs, napkins—these small items fit on any loom. The 30" loom weaver can make a 4" x 4" coaster, but they're using 5% of their loom's capacity. The 15" loom weaver makes the same coaster and uses 27% of their capacity. Neither is better. Both are making coasters on equipment designed for substantially larger projects.

Belt weaving happens at 2" to 4" wide. Bag straps run 1.5" to 3" wide. Bookmarks are 2" wide. These projects expose a truth about rigid heddle looms: the lower limit is more constraining than the upper limit. Most looms struggle with warp widths under 6". The rigid heddle starts to feel floppy. The cloth beam won't grip narrow warps evenly. You end up using half the heddle, and the unused portion wants to sag.

The Real Width Calculation

Loom width determines project possibilities. But possibilities don't equal productivity. The most productive weavers aren't using the widest looms. They're using looms that match their actual project distribution.

A weaver who makes scarves 60% of the time, kitchen towels 30% of the time, and occasional shawls 10% of the time doesn't need a 30" loom. They need a 15" or 20" loom. The 30" loom sits unused because threading 240 warp ends for a scarf feels absurd.

The inverse is also true. A weaver making baby blankets and throw pillows needs the 25" or 30" loom. The 15" loom forces panel construction, which doubles the labor. At that point, the "affordable" smaller loom becomes more expensive in time than the larger loom would've been in money.

Loom width also affects portability. A 15" loom weighs 8 to 12 pounds. A 30" loom weighs 25 to 35 pounds. The difference between "I'll weave on the porch today" and "this lives in the studio permanently." Some weavers need portability. Others need dedicated workspace. Neither is wrong, but they require different equipment.

The Two-Loom Solution

The most common loom collection includes a 15" or 20" loom for everyday projects and a 25" or 30" loom for large pieces. This isn't indulgence—it's practical. Small looms thread faster, warp faster, and finish faster. Large looms handle projects the small ones can't.

The typical evolution: Buy a 15" loom. Make scarves. Make kitchen towels. Make placemats. Want to make a baby blanket. Buy a 25" loom. Make one baby blanket. Realize threading a 25" loom for a scarf feels excessive. Return to the 15" loom for 90% of projects.

Some weavers skip the intermediate step and buy both looms simultaneously. They're usually weavers who've borrowed looms, taken classes, or learned on someone else's equipment. They've already completed the trial-and-error phase vicariously.

The alternate path: Buy the 25" or 30" loom first. Use it for everything. Realize small projects feel inefficient on large looms. Buy a 15" loom six months later. Now you own two looms, but in reverse order. The end result is identical.

Width and Warp Management

Wider looms create longer warp chains during warping. A 15" loom with an 8-dent reed requires 120 warp threads. A 30" loom with the same reed needs 240 threads. The physical act of managing 240 threads is not twice as hard as managing 120 threads—it's exponentially harder.

Warp tangling increases non-linearly with thread count. Somewhere around 180 threads, warps start to develop personalities. Individual threads decide they'd rather loop around their neighbors than stay parallel. The weaver spends more time managing warp drama than actually warping.

This is why some weavers prefer sectional warping for wide looms. Wind the warp in sections, managing 20 or 30 threads at a time instead of 240 simultaneously. Sectional warping requires additional equipment and more setup time, but it eliminates the warp tangle nightmare. The choice between direct and indirect warping becomes more critical as loom width increases—what works efficiently on a 15" loom can become unmanageable on a 30" loom.

Wider looms also mean wider reeds to store. A 15" rigid heddle fits in a drawer. A 30" rigid heddle requires closet space. Most weavers own multiple dent sizes—5-dent, 8-dent, 10-dent, 12-dent—and the storage requirement multiplies by loom width. This is the hidden cost of wide looms: furniture-scale storage for accessories.

The Bottom Line

Loom width matters for baby blankets, wide shawls, and single-panel garments. For everything else, it's preference. A 15" loom makes scarves, towels, placemats, and narrow shawls. A 20" loom adds proper shawls and wide towels. A 25" loom reaches baby blankets and garment back panels. A 30" loom handles throws and full-width yardage.

The question isn't "what's the best width?" The question is "what am I actually going to make?" Answer that honestly—not aspirationally—and the loom width reveals itself.