I found a tutorial on how to build a queen size bed frame and headboard that you might find helpful. The tutorial is from Woodshop Diaries and it has step by step instructions on how to build the bed frame and headboard. Here are the steps:
1. Prepare the Bed Frame Posts
2. Prepare the Head Board Panel
3. Assemble the Head Board
4. Assemble the Foot Board of DIY Bed Frame
5. Assemble the Bed Frame Rails
6. Add Bed Rail Hardware
7. Test Fit Bed Frame and Finish
You can find more detailed instructions with pictures on their website . Another tutorial I found is from MyMyDIY which has free plans for building a queen size bed frame . The tutorial includes a list of materials needed and step by step instructions on how to build the bed frame.
I hope this helps you get started on your project! Let me know if you have any other questions.