Quilt Size Chart: Standard Quilt Sizes, Batting and Backing

Nobody governs quilt sizes. There is no standards body, no published specification, and no two charts online agree — which is why looking up a queen quilt turns up half a dozen different numbers. What is standardised is the bed underneath and the batting on the shelf. Once you know those two things you can work out every quilt size yourself, and adjust any row here for your own mattress rather than trusting a number a stranger typed.

This is that chart, with the arithmetic underneath it. It sits at Level 2 of The Pattern, Stitcher. If you have not made a quilt yet, read the beginner quilting guide first — this page assumes you already know what a quilt sandwich is.

The quilt size chart

And the two columns that decide what you put in the basket:

That second column is the part most charts leave out, and it surprises people every time. Read on for why.

Where the mattress numbers come from

The bed is the only fixed thing in this whole calculation. The Better Sleep Council, the consumer arm of the mattress industry's trade association, publishes the standard sizes: twin 38 by 75, twin XL 38 by 80, full 53 by 75, queen 60 by 80, king 76 by 80 and California king 72 by 84.

Full is worth a footnote: you will see it published as both 53 and 54 inches wide depending on the source. It makes no difference at quilt scale, but it is a fair warning about how much work the word standard is doing here.

Crib is the exception: it is the one bed size written into federal law. Under 16 CFR 1241.2, a full-size crib mattress must measure at least 27¼ inches wide and 51⅝ inches long — a minimum, not a fixed size. Worth saying plainly, too: current infant safe sleep guidance is against loose bedding in a crib, so a baby quilt is usually a floor mat, a pram cover or a keepsake rather than something that goes in the cot.

Drop is the number you actually choose

Everything else follows from one decision: how far down the sides you want the quilt to hang. That is the drop, and it is the reason no two charts match — every chart author picked a different one and then published the result as a standard.

The arithmetic is two lines:

• Width = mattress width + (2 × drop)
• Length = mattress length + drop at the foot + 10 inches if you tuck under the pillows

A 12-inch drop covers the sides of the mattress and stops. Sixteen reaches past the base of most bed frames. Anything longer is a bedspread — a lot more quilting for a part nobody sees. The chart runs 12 to 16, which is why every row is a range.

Before you commit, measure the depth of your own mattress. A slim eight-inch mattress and a pillow-top nearly twice that are the same bed size on paper and want quilts several inches apart. Two minutes with a tape beats any chart, including this one.

Lap and throw: the size nobody agrees on

A lap quilt has no mattress to measure against, so there is nothing to derive it from — which is exactly why the published sizes vary so wildly.

Ask r/quilting and you get an honest spread rather than a number. In threads on best lap quilt size, quilters describe everything from around 40 by 45 inches for a blanket over the feet, up to roughly 70 by 80 for something you can properly cocoon in, with the 60-by-72 area coming up repeatedly as the compromise. The recurring advice is to size it to the person and to how they will use it — over the knees in a chair, or napping full length on a sofa.

A practical middle: 60 by 72 inches. It fits a twin batting package, it covers an adult on a sofa, and it is still small enough to wrestle through a domestic machine. That is the size our quilted lap throw project uses, at 36 by 48, scaled up — start there if you want the whole thing walked through step by step.

Buy your batting one size up

Here is the finding that makes this page worth bookmarking: the batting package named after your bed is usually too small for the quilt that fits that bed.

Compare the cut column in the chart with what is actually in the packet:

Those figures come from the makers themselves — Quilters Dream, Pellon and The Warm Company's own listing for the full size. Notice that they do not agree either: three brands publish three different Full sizes, nine inches apart at the extremes, and only one of them sells a Throw at all.

Now do the subtraction. A twin quilt with a 12-inch drop finishes around 68 by 90. Add four inches of overage on each side and you need 76 by 98 — and the twin package is 72 by 90. It does not fit. The same holds at almost every size, which is why the second table above reads one row down from what you would expect.

Two things save you. Cutting your own from a bolt sidesteps package sizes entirely, and quilting it yourself needs far less overage than a longarm does — on r/quilting, the answers on this cluster around four to six inches of backing for a longarm and two to three inches when you are quilting on your own machine, with the consistent advice to ask your longarm quilter what they want rather than guessing.

While you are reading the packet, read two more numbers on it. Every maker states a maximum quilting distance — how far apart your lines of stitching may be before the batting starts to shift and clump. The Warm Company says quilt or tie up to 10 inches apart for Warm and Natural; Quilters Dream states 8 inches; Pellon states 8 to 10. That number decides how much stitching you have signed up for. The Warm Company also publishes its shrinkage — around 3 percent in a cold first wash, about 5 percent in warm water for a more antique, puckered look — which is a design decision, not a defect. Compare packets in quilt batting before you buy.

Gear mentioned above

What we'd buy for this

One pick per category, chosen from the research pages linked in this piece. Borrow before you buy — nothing here is required to start.

• 
  Quilt Batting

  FIVEIZERO 100%$9.99★ 4.7 out of 5 stars · 502 ratings

  The least expensive pick in this category, which makes it the low-risk way to find out whether you'll keep at it; cotton batting, which quilts flat and softens with washing; low loft, which is the easier one to feed through a domestic machine.

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• 
  Quilting Rulers

  LINXIAO Ruler,4$8.97★ 4.8 out of 5 stars · 1,141 ratings

  Why this oneBuy on Amazon
• 
  Cutting Mats

  anezus 12inch$8.99★ 4.6 out of 5 stars · 21,006 ratings

  Why this oneBuy on Amazon

Researched from listings, specs and owner feedback — never hands-on testing. We may earn a commission; it never changes a pick.

Backing: two widths, two answers

Quilting cotton comes off the bolt around 42 to 44 inches wide, so any quilt wider than about 40 inches of usable fabric needs the backing pieced from two or three lengths joined with a seam. That is where the yardage in the chart comes from: count how many widths you need, multiply by the length, divide by 36, round up.

The alternative is wide backing, sold at 108 inches — Robert Kaufman's Kona Wide is 100 percent cotton at that width, and most quilt shops carry printed equivalents. One piece, no seam, and the yardage drops dramatically: a queen backing falls from 8¼ yards of regular cotton to 3 yards of wide. It costs more per yard and usually less per quilt, which is the arithmetic quilters on r/quilting reach for constantly.

Before you cut

Sizes this large are unforgiving of a wandering cut. A long quilting ruler and a big cutting mat do more for accuracy at queen scale than any upgrade to the machine — a 24-inch ruler crosses folded quilting cotton in one pass, and the mat grid does half the measuring.

The machine matters at one point: getting a king-size sandwich past the arm. Rolling a quilt that size through the throat of a domestic machine is genuinely awkward, and extra throat space is the spec that changes it. If you are sizing up, the trade-offs live in quilting machines — but a first quilt at lap or twin size needs nothing your current machine cannot do.

Then measure your bed, pick your drop, and cut the batting one size bigger than the label suggests.