No box spring necessary! Take the work out of assembling a bed frame with a Bedder Base King Mattress Platform. You'll appreciate the strong metal construction and how it's easy to set up, easy to sleep on, and easy to dismantle and store away. Everything you need for assembling is included. Especially handy for guest rooms.Unique designs provide customers with the ultimate strength and ease of assembly.Bed frames boast the strongest raw materials available in the industry.