Alaskan King Bed Frame
Bed frames built to support a 108" x 108" Alaskan King mattress. Due to the massive size, most frames are custom-built or come in modular sections.
Buying Tips
- Verify the frame supports the full 108" x 108" dimensions
- Check weight capacity (Alaskan King mattresses can weigh 200+ lbs)
- Consider modular/sectional frames for easier delivery and setup
- Measure doorways and stairs before ordering
Where to Buy
Last verified: February 2026
7 sellers currently offer Alaskan King bed frames.
| Seller | Price Range | |
|---|---|---|
Big Mattress Co. MattressFrameBedding | $2,000 - $5,000 | Visit |
Mattress Insider MattressFrameBedding | $2,000 - $4,500 | Visit |
Nolah Sleep MattressFoundation | $2,500 - $4,000 | Visit |
Engineered Sleep MattressFoundation | $3,200 - $6,000 | Visit |
Custom Mattress Factory MattressFrameBedding | $2,000 - $5,500 | Visit |
Sleep Boutique / Von Viva MattressFoundation | $3,700 - $8,000 | Visit |
AdultBunkBeds.com FrameMattress | $2,000 - $8,000 | Visit |
Frame Types That Work at Alaskan King Scale
Not every frame style works at 108" × 108". Here's what to look for:
Platform frames (most common for Alaskan King)
The dominant choice for oversized beds. A solid or slatted platform sits low to the ground, supports the mattress without a box spring, and distributes weight evenly. Most Alaskan King frame sellers offer platform designs. Look for center support legs (not just perimeter rails) – at 9 feet wide, the mattress needs support in the middle to prevent sagging.
Slatted platform frames
Slats should be no more than 3 inches apart to properly support memory foam and hybrid mattresses. Wider slat spacing can cause mattress sag between slats over time. Some sellers offer adjustable slat spacing – useful if you switch mattress types later.
Modular/sectional frames
These ship in 2-4 sections that bolt together in your bedroom. This is the most practical design for oversized beds because individual sections fit through standard doorways. Big Mattress Co. and Engineered Sleep both use modular frame designs. The connection points between sections need to be solid - check that the bolts or brackets create a rigid joint.
Upholstered frames
Available from Alaskan King Bed Co., Wyoming King Beds, and AdultBunkBeds.com. These add a padded headboard and fabric-wrapped rails. They're heavier (150–250 lbs total) but look more finished than bare wood or metal. Most ship with the headboard as a separate piece.
Metal frames
Lighter and often cheaper than wood. Good for a minimalist look. Make sure any metal frame for Alaskan King size has center support legs – a metal frame with only four corner legs will flex and sag under the weight of a 9-foot mattress.
What to avoid
- • Frames with only perimeter support (no center legs). At 108" wide, the middle of the mattress will sag without center support.
- • Standard King adjustable bases – they're 76" × 80" and won't fit.
- • Frames without at least 6 total support points (4 corners + 2 center legs minimum).
Weight Support and Center Support
An Alaskan King mattress weighs 120–220 lbs. Add two adults (300–400 lbs combined), and the frame needs to support 420–620 lbs minimum, plus some safety margin.
What to look for:
- ✓Total weight capacity: Look for frames rated at 1,000 lbs or higher. Most quality Alaskan King frames are rated 1,200–2,500 lbs.
- ✓Center support: At 108" wide, the frame MUST have center support legs or a center beam. Without it, the slats will bow under the mattress weight and the frame will eventually fail.
- ✓Number of slats: More slats = better weight distribution. A good Alaskan King frame has 15–25 slats (roughly one every 4–6 inches across the 108" length).
- ✓Leg count: 6 minimum (4 corners + 2 center). 8 or more is better for long-term durability.
For reference: the complete Alaskan King setup (mattress + frame + bedding + two adults) puts about 5–8 lbs per square foot on your floor – well within any standard residential floor's 30–40 psf rating. The frame weight capacity is the real concern, not your floor. See our weight guide for full details.
Frequently Asked Questions
Can I use a regular King bed frame for an Alaskan King?
No. A standard King frame (76" x 80") is far too small for an Alaskan King (108" x 108"). You need a frame specifically built for Alaskan King dimensions.
What types of Alaskan King frames are available?
Most Alaskan King frames are platform style (no box spring needed), upholstered, or simple metal support frames. Custom wood frames are also available from specialty makers.