King Iron Bed Frame Guide: Eastern King vs California King

A king iron bed frame comes in two sizes that are not interchangeable. A standard (Eastern) king fits a 76 x 80 inch mattress, and a California king fits a 72 x 84 inch mattress. Choose the standard king if you want width, choose the California king if you want length, and measure your mattress before you order, because a frame made for one will not fit the other. Nearly every iron bed we sell is offered in both king sizes.

We have sold iron beds since 1999, and every king in our collections is handcrafted to order in Los Angeles by our partner workshops. This guide covers the questions specific to a king: which of the two sizes to choose, whether it fits your room, whether the headboard will make it through your house, and king designs worth a look.

King vs California King: The Numbers

The two mattresses have almost the same surface area. The difference is the shape: the standard king is 4 inches wider, and the California king is 4 inches longer. In both cases the iron frame is a few inches larger than the mattress, and each bed's exact outside dimensions are on its product page.

How to Tell Which King You Have

Measure the mattress itself, not your current frame or the bedding label. 76 inches wide by 80 inches long is a standard king; 72 inches wide by 84 inches long is a California king. If you are buying a new mattress along with the bed, decide on the king size first and order both in the same size. Every bed is made to order with no change-of-mind returns or exchanges, so this one measurement is worth doing twice.

Which King Should You Choose?

Choose the standard king if you share the bed and want the most width per person, your room is square or wider than it is long, you want the easiest bedding shopping, or you already own a standard king mattress you plan to keep.

Choose the California king if you or your partner want more length at the foot of the bed, your room is long and narrow so the extra length runs with the room, or you prefer a slightly narrower bed on the wall.

How Much Room Does a King Need?

A king is the largest bed we sell, so start with the minimum room it takes. Allowing 2 feet of walkway on each side and at the foot (a common minimum), the mattress alone sets these floors, before adding the few inches of frame from the product page and your nightstands:

If your room is close to those numbers, tape the bed's outside footprint on the floor with nightstands in place and walk around it; our queen iron bed frame guide walks through that method step by step. Dropping to a queen gives back 16 inches of width compared with a standard king, and our small bedroom size guide covers tighter layouts. For tall four-posters and canopies, also compare the overall height on the product page with your ceiling.

Check the Path, Not Just the Room

This is the step king buyers most often skip. Each headboard and footboard is welded as a single piece, so a king headboard does not break down into smaller parts for delivery. That is part of what makes it solid, and it means the headboard has to fit through your doorways, hallways and stair turns in one piece.

Before ordering, compare the headboard's width and height on the product page with your tightest doorway, hallway corner and stairwell, remembering that pieces can be tilted and angled through. A complete bed weighs roughly 100 to 250 lbs depending on the design, and a king headboard is the largest piece, so plan for two people. If anything looks close, call us and we can help you check the measurements. Optional White Glove Delivery & Assembly (added fee) has the crew carry the bed into the room and assemble it, provided the path and space are clear when it arrives.

Configuration and Support at King Width

About 80% of our customers buy a complete bed and about 15% buy a headboard & frame. At king width, Headboard Only deserves extra caution: a king headboard spans a wide frame, so it needs a sturdy king frame with solid attachment points. Center support legs and slats depend on the model; our iron bed weight capacity guide explains why center support matters most on a king, and our headboard only vs complete bed guide compares the configurations.

Height and Under-Bed Clearance

On American Classics and Dream Gallery beds, you can raise the headboard, footboard and/or side rails by up to 13 inches for an added fee. Raising the rails lifts the mattress and adds clearance underneath, useful for storage under a bed this size. Raising the headboard adds presence on a tall or wide wall, where a standard-height king headboard can look low. Custom height is not available on Iron Art or North Haven Traditions.

King Iron Beds Worth a Look

Canopy. All six of our canopy beds come in king and California king, including the Amiens Abbey Canopy. They are all in Dream Gallery; read our iron canopy beds guide before you measure the ceiling.

Four-poster. The Chartres Four Poster from Dream Gallery, or the Brighton from American Classics. Browse all four-poster beds.

Platform. The Sunset Surround, one of five Iron Art platform beds sold as complete beds.

Queen-and-up designs. Some North Haven Traditions beds, such as the Hamilton, are made only in queen, king and California king.

To see every option, browse king iron beds or California king iron beds.

Finish at King Scale

A king headboard is the widest surface in most bedrooms, so the finish carries more of the room than it does on a queen. Bronze tones are our customers' most popular choice, followed by black, then white; a darker finish makes a king headboard read heavier on the wall, and a white or light finish lets it recede. Compare palettes in the American Classics finish guide and the Iron Art finish guide, or see our iron bed finishes guide.

Timing

Kings are made to order on the same schedule as other sizes; lead times by collection are in our collections comparison, and in-stock Quickship beds ship in about a week when a king is available. Delivery and return terms are on our shipping policy and refund policy pages.

Not sure which king fits your room? Call us at (800) 378-1742, Monday to Friday, 9am to 5pm ET, with your room, doorway and mattress measurements. For the full overview, see our iron beds buyer's guide.