**Step-by-Step Guide:**

1. Design and Measurements:
Decide on the dimensions of your trunk. Consider the intended use and size. Measure and mark the dimensions on the wood boards.

2. Cutting the Wood:
Using a saw, carefully cut the wood pieces according to your measurements:
– 5 pieces for the trunk sides and bottom
– 5 pieces for the lid
– 4 pieces for the handles (if not pre-made)

3. Sanding:
Sand all cut edges and surfaces to smooth out any roughness or splinters. Start with a coarse grit and gradually move to finer grits for a polished finish.

4. Assembly:
Assemble the trunk using wood glue and screws/nails:
– Attach the four side pieces to the bottom piece to form the trunk.
– Ensure the corners are square using a carpenter’s square.
– Apply glue to the edges before screwing/nailing for added strength.

5. Lid Assembly:
Assemble the lid in the same manner as the trunk, using the large lid piece and the remaining side pieces.

6. Lid Hinges:
Attach hinges to the back of the trunk and the back of the lid. Position them so the lid can open smoothly without falling back.

7. Sanding and Finishing:
Sand all surfaces of the tack trunk and lid, including the edges and corners, to achieve a smooth finish. You can also round off the edges slightly for a more polished look.

8. Staining/Painting (Optional):
If desired, apply wood stain or paint to achieve the desired color. Allow sufficient drying time between coats.

9. Sealing (Optional):
Apply a clear varnish or sealant to protect the wood and enhance its appearance. Follow the product instructions for application and drying times.

10. Handle Attachment:
Attach handles to the sides of the trunk. Measure and mark their positions, then drill holes for screws. Secure the handles in place.

11. Final Touches:
Inspect the tack trunk for any rough spots, drips, or imperfections. Sand and touch up as needed.

12. Enjoy Your Tack Trunk:
Your wooden tack trunk with a lid and handles is now ready for use! Whether for storage, decoration, or as a gift, your handcrafted tack trunk is a testament to your woodworking skills.

Remember to take safety precautions throughout the process, and don’t hesitate to seek advice from experienced woodworkers if you encounter any challenges. Happy building!