Do I need to paint each piece separately, or can I assemble first?

Paint each piece individually before installation. This gives you better access to edges, seams, and mounting surfaces, and ensures even color coverage across all four panels.

What prep work is required before painting?

Sand and prep the surface with appropriate grit sandpaper, then clean thoroughly to remove dust. After that, apply your chosen primer and topcoat system. Proper surface prep is critical for paint adhesion and durability.

Will I need gap filler or seam tape where the panels meet the body?

Gap filler or flexible seam sealant is recommended at panel transitions to prevent water intrusion and create a finished appearance. Check your gaps after test-fitting — panel alignment may vary slightly, so have filler on hand before final installation.