Bed skirts · King

King bedskirt size: deck dimensions and drop

Two current King bed-skirt charts list a 78 × 80 inch deck. Their finished drops differ—15 inches in one product line and 18 inches in another—so the label alone does not determine floor coverage.

Label or calculationDimensionsWhat it means
SouthShore King example78 × 80 in deck + 15 in dropCurrent finished product chart.
HiEnd Accents King example78 × 80 in deck + 18 in dropCurrent second chart; some named products use another stated drop.
Nominal King mattress top76 × 80 inA comparison baseline, not the finished bed-skirt deck.
Drop measurementdeck seam to desired lower edgeMeasure vertically on the assembled bed setup.
Manufacturer variation matters.

A 78-inch listed deck is wider than the nominal 76-inch King mattress. Confirm the support surface, construction, and finished drop rather than trimming or stretching by assumption.

Do not substitute mattress width for deck width

Both current examples list a 78-inch deck across a nominal 76-inch King mattress category. That finished allowance belongs to those product lines and is not a universal formula.

Drop controls the visible lower edge

Measure from the surface where the deck rests to the lower edge you want. Foundation profile, frame height, and placement change that vertical distance.

Measurement method

Start with the product and space you actually have.

  1. 1

    Measure the support surface. Record the deck width and length where the product will rest.

  2. 2

    Measure the vertical drop. Measure from the deck seam to the desired lower edge.

  3. 3

    Record the corners. Note posts, split corners, pleats, and other construction details.

  4. 4

    Compare finished dimensions. Use the current product chart instead of the size label alone.

Calculate a target size for your own mattressUse your measurements instead of relying on a nominal label.
Open calculator

Questions, answered

Frequently asked questions

What size is a King bed skirt?

Two current examples use a 78 × 80 inch deck, with either a 15- or 18-inch drop. Other products can differ.

Why is a King bed-skirt deck 78 inches wide?

That is a finished manufacturer dimension in the cited product charts. It should not be treated as a rule for every King bed skirt.

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