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Platform vs storage bed frames
The short version: platform frames usually keep the room cleaner, while storage frames make the bed work harder in smaller spaces.
Platform frame
Cleaner look, fewer storage promises.
Platform frames are usually better when you want a simpler, lower, cleaner-looking bed setup.
Storage frame
More function, more clearance math.
Storage frames are usually better when the room needs hidden bedding, clothes, or seasonal storage.