Woot has ZINUS Abel Metal Platform Bed Frame (Queen) for $39.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.

Thanks to Deal Hunter ItsSoCheap for sharing this deal.

Product Details:

• Metal slats are secured with fewer bolts to save you time and hassle; all parts, tools and instructions are shipped straight to your door in one efficiently packed box; set-up takes less than hour with a friend's help.
• 14 inch platform features recessed side legs for even better support with no stubbed toes, and its 12 inches of under bed space is perfect for storing extra odds and ends.