How to Measure for a Bedskirt | Dimensions Done Right

Measuring for a bedskirt requires finding the box spring width and length, then the drop from the box spring top to the floor minus half an inch for clearance.

A bedskirt that’s too short leaves a gap. One that’s too long bunches under the mattress or drags on the floor. The fix is three measurements taken before you shop, and they take about two minutes with a tape measure. This guide walks through the exact process, what the standard sizes mean, and the common mistakes that trip people up — so your bedskirt fits the first time.

What You Need to Measure for a Bedskirt

You need three numbers: the width of the box spring, the length of the box spring, and the drop distance from the top of the box spring to the floor. The width and length determine the size you buy (Twin, Queen, King, and so on). The drop determines whether the skirt hangs to the floor or rides too high.

Grab a tape measure, a notepad, and ideally a second person to hold the far end of the tape, though you can manage alone.

How to Measure the Drop Correctly

The drop is the part most people get wrong. Place the tape measure at the top edge of the box spring — not the mattress — and pull it straight down to the floor. Write that number down. Now subtract 0.5 to 1 inch from that measurement so the skirt hangs slightly off the floor rather than bunching against it. That subtracted number is your target drop.

Standard stock bedskirts come in drops of 14, 16, and sometimes 18 inches. Fourteen inches is the most common stocked size across all bed sizes. If your calculated drop falls between standard sizes, choose the next size down to avoid pooling fabric.

Platform bed exception. If your bed has no box spring — a platform bed or a solid foundation — measure from the edge of the mattress foundation where the bedskirt will sit, not from the mattress top. Measuring from the mattress top gives a drop that is several inches too long.

Width and Length: Matching the Box Spring

Measure the box spring across the narrow edge for the width and from the head end to the foot end for the length. If you can, remove the mattress first for a cleaner measurement. If measuring a King bed with two separate box springs, push them together tightly before measuring the full width — failing to do so gives a narrower measurement that won’t fit the frame.

Most bedskirts are sold by mattress size, but actual dimensions vary slightly. Here are the standard bedskirt sizes based on verified current product specs:

Check your measurement against this table before shopping. A Queen box spring is almost always 60 by 80 inches, but some older frames or imported beds use slightly different dimensions — always measure your own box spring rather than assuming the size label still fits.

Once you have your measurements, the next step is finding a bedskirt that matches your exact size and style. Our tested best king bedskirt roundup covers the top-rated options with verified drop lengths and fabric quality ratings.

Footboard and Rail Adjustments

Beds with wooden footboards or side rails change the equation. The drop at the front of the bed may be shorter than the drop at the sides if the footboard sits lower than the box spring edge. Measure the drop at both the front and the side of the bed. If they differ, you need a bedskirt with a gusseted corner — the split-V design that lets the skirt wrap around a footboard post while keeping the front panel straight. Some bedskirts come with adjustable gussets; others require cutting a slit and hemming it yourself.

DIY Yardage: How Much Fabric You Need

If you are sewing a custom bedskirt, the yardage depends on the bed size, the drop length, and the pleat style. Tailored styles with five pleats use less fabric than box-pleat styles with more cuts. The numbers below include allowances for a 2-inch hem and a 2-inch heading at the top.

If your drop is between the standard ranges, calculate proportional yardage. For example, a 16-inch King drop might need roughly 4.25 yards for a tailored style, but buying 4.5 yards gives a safe margin. If you are lining the skirt, the lining fabric requires the same yardage as the main fabric.

Three Mistakes That Ruin a Bedskirt Fit

Skipping the off-floor gap. Measuring exactly to the floor guarantees the skirt will touch or drag. That extra half inch of subtraction is what keeps the fabric looking crisp rather than crushed against the carpet. Double box spring oversight. King owners with two separate box springs often measure only one half and double it, which misses the small gap between them. Push them together first. Storage clearance blind spot. If you store bins or suitcases under the bed, check that the storage height is less than the drop you buy — otherwise the skirt will bulge or ride up every time you pull something out.

The same skirt that fits perfectly today will still fit in five years if your bed remains the same. The measurement rules above apply to any standard bed frame, any box spring, and any skirt style from tailored to ruffled to box pleat.