King Sized Beds
King size beds made for proper rest. More space to stretch, unwind, and sleep without compromise.
King Sized Beds
Buy king size beds and bed frames online
King-sized beds for nights where space matters
King-sized beds aren’t just bigger, they’re a nightly upgrade. At 76" x 80" in size, king-sized beds give couples, solo sleepers, and families the space to stretch, sprawl, and get much-needed rest without bumping elbows. From low-profile platforms to statement-making headboards, our modern king bed frames deliver on comfort and design so every morning starts on the right side of the bed, no matter which side you're on.
What makes our king size bed frames stand out?
Our contemporary king-sized bed frames are designed to do it all, balancing modern style with the practical demands of a busy home. Discover the features that make a Castlery frame a smart, long-term investment:
- Range of designs: Choose from floating base and low-profile platforms for an airy, modern look, or opt for high headboards to turn the bed into a statement piece.
- Range of materials: From spill-resistant performance fabrics and sculptural bouclé to timeless solid wood finishes, our materials are selected for both their tactile luxury and their ability to handle real life.
- Options with storage: Get built-in drawers for smart bedroom organization, perfect for extra bedding, seasonal layers, or anything you'd rather keep out of sight.
- Commitment to durability: Solid frames and sturdy mechanisms mean every king-sized bed in our collection is made to hold up through years of real use, not just show-home styling.
FAQ
What are the dimensions of a king-size bed and frame in feet?
A standard US king mattress measures 76 inches wide by 80 inches long—that’s approximately 6'4" x 6'8". Bed frame dimensions may vary slightly based on style and design, so be sure to check the product details online before buying your king-sized bed.
How big is a king bed versus a queen?
The main difference is width. A king-size bed is 16 inches wider than a modern queen-size bed (which measures 60" x 80"). This added width is ideal for couples who want extra personal space, if you share your bed with a fur baby, or anyone who loves a more expansive sleep surface. For more details, see our bed size and dimension guide.
How to choose a king-sized bed?
Choosing a king-sized bed is more than picking the biggest mattress on sale. Start with your space: measure your bedroom and leave room to walk around comfortably, open side table drawers, and arrange other furniture. Many would recommend leaving at least ~2 feet of clearance around the bed so you can walk comfortably and open drawers or doors.
Then, think about your lifestyle: do you want extra storage underneath, a cozy upholstered frame, or something minimalist and architectural? Consider materials and textures that suit how you live: soft fabrics for warmth, durable performance fabrics for low-maintenance life, wood for timeless elegance, or metal for a sleek, modern touch.
And finally, trust your gut. The right bed should feel like it was made for how you sleep, stretch, and unwind every single night.
Do you deliver king-sized beds across the US, and what are your warranty and return policies?
While we strive to reach every corner of the US, our delivery coverage is currently limited to selected areas. To check whether your location is within our delivery zones, simply enter your zip or postal code on the product page. For more details, visit our delivery page.
We also offer a limited warranty against manufacturing defects on our king-sized beds. Warranty duration varies by product—full details are available on our product warranty page. If your purchase isn’t quite right, our return policy outlines eligibility, timelines, and processes on the sales and refunds page.
For further assistance, visit our help center for FAQs and ways to get in touch with our customer support team.