Bed size & dimensions

Bed Sizes Guide

Standard bed sizes chart from Twin to California King


Choosing the right bed starts with knowing the measurements of the mattress, bed frame, and your bedroom space. Use this page as a handy reference for our standard bed sizes, from Twin to California King, so you can confidently confirm dimensions before ordering your solid wood bed frame or mattress.

By collection

Platform Bed Size Chart

All dimensions are listed in inches. Below are standard mattress sizes and matching platform bed dimensions for most of our collections.

Note: Atomic and Nelson measurements show the 5-inch lip without side tables.
Mattress Size Horizon Apollo Atomic Nelson Modern One Modern Two Shaker Sunrise Enso
Twin 43 x 79 43 x 79 48 x 82 48 x 82 48 x 82 48 x 82 43 x 81 46 x 80 42 x 79
Twin XL 43 x 84 43 x 84 48 x 86 48 x 86 48 x 86 48 x 86 43 x 86 46 x 85 42 x 84
Full or Double 58 x 79 58 x 79 64 x 82 64 x 82 58 x 78 64 x 82 59 x 81 62 x 80 58 x 79
Queen 64 x 84 64 x 84 70 x 86 70 x 86 63 x 83 70 x 86 65 x 86 68 x 85 66 x 84
King 80 x 84 80 x 84 86 x 86 86 x 86 79 x 83 86 x 86 81 x 86 84 x 85 82 x 84
California King 76 x 89 76 x 89 82 x 90 82 x 90 75 x 87 82 x 90 75 x 87 82 x 90 77 x 90

If these sizes don't work in your space, contact us. Every frame can be custom-built to fit.

Room planning

Bed Sizes & Room Dimensions

Mattress Mattress Size (in.) Bed Frame W & L (in.) Bed Frame W & L (ft.) Est. Minimum Room Size (ft)
Twin 38" x 75" 42" – 48" x 79" – 82" 3' 6" – 4' 0" x 6' 7" – 6' 10" 7 x 9 ft
Twin XL 38" x 80" 42" – 48" x 84" – 86" 3' 6" – 4' 0" x 7' 0" – 7' 2" 7 x 10 ft
Full / Double 54" x 75" 58" – 64" x 78" – 82" 4' 10" – 5' 4" x 6' 6" – 6' 10" 9 x 9 ft
Queen 60" x 80" 63" – 70" x 83" – 86" 5' 3" – 5' 10" x 6' 11" – 7' 2" 10 x 10 ft
King 76" x 80" 79" – 86" x 83" – 86" 6' 7" – 7' 2" x 6' 11" – 7' 2" 12 x 12 ft
California King 72" x 84" 75" – 82" x 87" – 90" 6' 3" – 6' 10" x 7' 3" – 7' 6" 12 x 12 ft

Dimensions are based on the largest size for each bed option, ensuring the space accommodates many bed frame styles in our collection. These recommendations include a standard 24-inch (2 ft) clearance along the foot and accessible sides of the bed for a comfortable walkway and breathing space, assuming the headboard rests flush against the wall.

Note: These dimensions focus on clearance around the bed and do not account for additional large furniture or built-in cabinetry.

Size by size

Find Your Fit

Twin / Twin XL Bed Dimensions

A twin mattress matches our solid wood bed frames, sized roughly 42 to 48 inches wide by 79 to 82 inches long (84 to 86 for an XL). This bed is built for a single sleeper, making it a go-to for kids' rooms, guest rooms, or compact spaces. Twin XL has the same width as a regular twin, but is 5 inches longer in length.

  • Mattress: 38 x 75 in / 38 x 80 in
  • Minimum recommended room size: 7 x 10 ft
  • Sleeper capacity: fits one adult or child comfortably

Full Bed Dimensions

A full mattress matches our solid wood platform bed frames, which are 58 to 64 inches wide by 78 to 82 inches long. A full-size bed comfortably sleeps one adult, or two if really needed and only for short-term stays.

  • Mattress: 54 x 75 in
  • Minimum recommended bedroom size: 9 ft x 9 ft
  • Sleeper capacity: fits one adult comfortably, or two adults snugly

Queen Size Bed Dimensions

A Queen mattress fits our platform beds, measuring roughly 63 to 70 inches wide by 83 to 86 inches long, depending on the style you choose. Queen is our most popular size for couples. It comfortably sleeps two adults, though it's also a common upgrade for solo sleepers who want more room to stretch out.

  • Mattress: 60 x 80 in
  • Minimum recommended bedroom size: 10 ft x 10 ft
  • Sleeper capacity: comfortably fits two adults

King Size Bed Dimensions

A standard King mattress fits our solid wood beds measuring about 79 to 86 inches wide by 83 to 86 inches long. King is the roomiest standard size for two adults sharing a bed, with extra room for small children or pets.

  • Mattress: 76 x 80 in
  • Minimum recommended bedroom size: 12 ft x 12 ft
  • Sleeper capacity: comfortably fits two adults, with extra width to spare

California King Bed Dimensions

A California King mattress complements our Cal King platform beds that are roughly 75 to 82 inches wide by 87 to 90 inches long. Like a standard King, it comfortably sleeps two adults, with the extra length for taller sleepers.

  • Mattress: 72 x 84 in, 4 in longer and 4 in narrower than a standard King
  • Minimum recommended bedroom size: 12 ft x 12 ft
  • Sleeper capacity: comfortably fits two adults, with extra length for taller sleepers

Questions

Bed Size FAQs

What is the most popular bed size in the US?
Queen is the best-selling mattress size in the US, commanding about 44.65% of the US mattress market in 2025. Its popularity comes down to the balance it strikes between sleeping space and fitting standard American bedroom dimensions.
Is a full bed just two twins?
No. A full bed is 54 inches wide. Two Twin mattresses side by side would be 76 inches wide, 22 inches wider than a standard full bed, and actually the same width as a king mattress.
Are two Twin beds the size of a King bed?
Close, but not exact. It depends on which Twin. Two standard Twins (38 x 75 inches each) together make a 76 x 75 surface, matching a King's 76-inch width but 5 inches shorter in length. Two Twin XL mattresses (38 x 80 inches each) make a 76 x 80 inches of surface, an exact match for a King. This is actually why splitting a King into two Twin XLs is common for adjustable bases for couples with different mattress preferences.
What are the bed sizes in order?
Smallest to largest: Twin → Twin XL → Full → Queen → King → California King. King and Cal King are close enough in total size that which one is "bigger" depends on whether you're measuring width or length; please see above.
What bed sizes are bigger than a King?
Beyond standard dimensions, there are specialty oversized mattresses, such as the Wyoming King (84×84 inches), Texas King (80×98 inches), and Alaskan King (108×108 inches or 9×9 feet). Though they offer generous extra room, they typically require custom bedding, specialized frames, and, of course, a higher investment.