A bedspread is designed to skim the floor, so the correct measurement equals the mattress width plus twice the drop to the floor, and the mattress length plus one drop plus a 16-inch pillow tuck.
Measuring for a bedspread is a two-part task: you need to know your mattress’s exact dimensions and how far down you want the fabric to fall. Getting these numbers right is the difference between a polished, finished look and a bedspread that pools on the floor or leaves your box spring exposed. Here is the exact process to get a floor-length fit every time.
How To Measure A Mattress For A Bedspread: The Steps
Grab a tape measure, a notepad, and ideally a second person to hold the other end. Measure the mattress itself—not the frame or the headboard—using these three dimensions.
Measure The Width
Place the tape at the outer edge of one side of the mattress and stretch it straight across to the opposite outer edge. Record that number exactly.
Measure The Length
Run the tape from the top edge of the mattress (where the pillow sits) down to the bottom edge (where your feet rest).
Measure The Drop (Height To Floor)
This is the vertical distance from the top surface of the mattress to the floor. , but the number can vary with platform beds, thick box springs, or adjustable bases. If you use a mattress topper or a heated blanket pad, measure from the top of that added layer so the bedspread clears it entirely.
How To Calculate Bedspread Dimensions From Your Measurements
Plug your three numbers into these formulas. The result tells you the minimum bedspread size to buy or sew.
- Total Width: Mattress Width + (Drop × 2). For a Queen with a 21-inch drop: 60 + 42 = 102 inches.
- Total Length (with pillow tuck): Mattress Length + Drop (foot end only) + 16 inches for the pillow tuck.
- Total Length (no pillow tuck): Mattress Length + Drop (foot end only).
The pillow tuck is worth noting. If your bedspread is meant to cover the pillows completely, add that extra 16 inches. If you always fold the bedspread down past the pillows, skip the addition.
Standard US Bedspread Sizes Vs. Your Calculation
Once you have your custom dimensions, compare them against standard manufacturing sizes. The table below shows typical specifications for US beds.
| Bed Size | Mattress (W × L) | Standard Bedspread (W × L) |
|---|---|---|
| Twin | 39″ × 75″ | 80″ × 110″ |
| Full / Double | 54″ × 75″ | 96″ × 110″ |
| Queen | 60″ × 80″ | 102″ × 122″ |
| King | 76″ × 80″ | 120″ × 122″ |
| California King | 72″ × 84″ | Often custom or King oversized |
Note that a Queen bedspread at 102 × 122 inches is significantly longer and wider than a Queen comforter (typically 88 × 92 inches) because bedspreads are made to reach the floor.
Five Mistakes That Ruin The Fit
Avoid these common errors that send shoppers back for returns.
Measuring the frame instead of the mattress. The bed frame, headboard, or footboard is often wider than the mattress. Measuring there produces a bedspread that hangs over the sides like a curtain. Always measure the mattress edge to edge.
Ignoring mattress depth and toppers. A modern pillow-top mattress can be 14 inches thick plus a 3-inch topper. If you measure the drop from the original mattress surface, the bedspread will stop a few inches above the floor. Measure from the highest sleeping surface.
Skipping the pillow tuck calculation. Without the extra 16 inches, a floor-length bedspread may stop right at the head of the pillows, leaving them uncovered. Decide whether you want pillow coverage and add the tuck if you do.
Forgetting cotton shrinkage. Cotton bedspreads can shrink after the first hot wash. Manufacturers suggest buying one size above your calculated dimensions if you plan to machine-dry on high heat.
Confusing bedspread sizing with comforters and coverlets. A King comforter is about 106 × 92 inches, while a King bedspread is 120 × 122 inches. They are not interchangeable. Check the product label specifically for “bedspread” dimensions.
Special Cases: Twin Beds And Room For Shrinkage
For a twin bed the standard mattress is 39 × 75 inches, and a standard bedspread at 80 × 110 inches gives a generous floor-length drop. If you are shopping for a child’s twin or a guest-room twin, the same formulas above apply. For a well-tested selection of twin bedspreads that meet the sizing standards in this guide, see our product roundup covering bedspreads for twin beds. This page lists the top options that match the 80 × 110 standard and what to look for if your twin bed has a thicker mattress.
For any bed, if the bedspread has a high cotton content and you live in a humid area, buy a size slightly larger than your calculation.
Choosing The Right Drop Height For Your Room
| Drop Type | Drop Height | Best For |
|---|---|---|
| Standard drop | 21 inches | Average bed frame height; fabric skims the floor |
| Oversized drop | 24 inches | Extra-thick mattresses or platform beds; a fuller floor look |
| Custom drop | Your measurement | When frame height is unusual or a bed skirt is used |
If you use a bed skirt, the bedspread should stop just above the floor to show the skirt. If you skip the bed skirt, the bedspread should touch the floor without pooling.
The Final Measurement Checklist
Here is the one-page workflow to order with complete confidence.
✅ Measure the mattress width at the widest point.
✅ Measure the mattress length from head seam to foot seam.
✅ Measure the drop from the top of the mattress (or topper) to the floor.
✅ Calculate: Width + (Drop × 2) and Length + Drop + 16″ (if covering pillows).
✅ Compare against the brand’s size chart — your calculated number should be equal to or slightly smaller than the product dimensions.
✅ If the bedspread is 100% cotton, consider buying one size up to account for shrinkage.
FAQs
Do bedspreads touch the floor?
Yes, by design. A bedspread is intended to skim the floor or hang just above it, unlike a comforter which typically stops above the box spring. The drop measurement to the floor is the key dimension that separates bedspreads from other bedding types.
How much drop should a bedspread have?
The standard drop is 21 inches from the top of the mattress to the floor. An oversized drop of 24 inches is used for thicker mattresses or when you prefer a more generous floor-length look. The exact drop depends on your frame height and mattress thickness.
Is a bedspread the same size as a comforter?
No. A Queen bedspread is typically 102 inches wide, while a Queen comforter is about 88 inches wide. Bedspreads are wider and longer to achieve the floor-length drape, so a comforter size chart does not apply when ordering a bedspread.
What if my bed isn’t a standard US size?
If your mattress is a European size, an adjustable frame that changes height, or a custom build, you cannot rely on a label like “Queen.” Use the measurement and calculation formulas in this article to determine exact dimensions, then order a size that matches or slightly exceeds those numbers.
References & Sources
- Thomasville at Home. “How to Measure Your Bed for the Perfect Bedspread Fit.” Step-by-step measuring guide and width/length/drop formulas.
- Purple. “Comforter Sizes: The Complete Guide.” Mattress measurement steps and bed sizing context for US standards.