Check whether the headboard and bed frame are compatible
Identify the mounting style: bolt-on, hook-on, or free-standing
Gather the required hardware: bolts, washers, nuts, brackets, and tools
Position the headboard behind the bed frame
Align the headboard legs or mounting holes with the frame holes or brackets
Attach the headboard using the correct bolts or hooks
Tighten all fasteners securely
Make sure the headboard is level and centered
Add spacer washers or brackets if the fit is uneven
Test the connection by gently shaking the headboard
Re-tighten any loose hardware if needed