How to Paint a Steel Door

Learn how to paint a steel door like a pro with this step-by-step guide. We’ll show you everything you need to know, from prep work to clean-up.

Checkout this video:


Preparation is key to painting a steel door. You will want to start by sanding the door down to bare metal. This will help the paint to adhere to the door better. Once you have sanded the door, you will want to wipe it down with a damp cloth to remove any dust. Next, you will want to apply a primer to the door.

Choose the right type of paint

It’s important to choose the right type of paint for your project. For a steel door, you’ll need to use a paint that’s specifically designed for metal. These paints come in both oil-based and water-based varieties. Oil-based paints are more durable and longer lasting, but they can be more difficult to work with. Water-based paints are easier to use, but they don’t last as long.

When you’re choosing a paint, you’ll also need to decide on a finish. The most common options are glossy, semi-gloss and flat. Glossy finishes are the most durable, but they can be difficult to touch up if they get scratched or chipped. Semi-gloss finishes are less durable than glossy finishes, but they’re easier to touch up. Flat finishes have the least amount of durability, but they offer the best resistance to scratches and chips.

Once you’ve chosen the right type of paint and finish, you’ll be ready to start painting your steel door!

Remove old paint

Before starting any paint project, it is important to remove any previous paint, rust, or other surface contamination. This will ensure that the new paint will adhere properly and provide the best possible results. If you’re painting a steel door that has been previously painted, you’ll need to use a paint stripper to remove the old paint. If the door has never been painted before or if it has been stripped and sanded, you can skip this step.

Prepare the door for painting

Assuming your door is mounted and ready to be painted, the first step is always to clean the door. Any loose paint should be scraped off, and the door should be sanded to provide a smooth surface for the new paint. If your door is particularly dirty, you may want to consider using a heavy-duty cleaner such as TSP. Once the door is clean and dry, you can begin painting.


Painting a steel door is a bit different than painting a regular door. You will need to use a primer specifically for steel and make sure that you paint in very thin layers. If you do not do this, the paint will likely crack and peel.

Prime the door

The first step is to clean the door with a degreaser and then rinse it off with a hose. Next, use a power washer to remove any dirt, chalk or other debris from the surface. If you don’t have a power washer, you can rent one from your local home improvement store.

After the door is dry, sand down any rough spots with medium-grit sandpaper. Be sure to wear a dust mask while sanding to avoid breathing in the particles.

Once the door is sanded, wipe it down with a tack cloth to remove any dust. Then use a primer designed for metal surfaces to prime the door. Apply the primer evenly with a paintbrush or roller and allow it to dry according to the manufacturer’s instructions.

Paint the door

1.Start by cleaning the door with a degreaser and a wire brush. This will remove any rust, grime or dirt that has built up on the surface over time.
2.Once the door is clean, sand it down with a medium-grit sandpaper to create a smooth surface for the paint to adhere to.
3.Next, apply a layer of primer to the door using a paint roller or brush. Be sure to cover all of the nooks and crannies, as well as any areas that may have rust or corrosion.
4.Once the primer is dry, apply a coat of paint to the door in your desired color. Again, be sure to cover all of the nooks and crannies for best results.
5.Allow the paint to dry completely before hanging the door back up on its hinges.

Finishing touches

After the primer has dried, you can start painting your door with a high-quality steel door paint. It’s important to use a paintbrush with synthetic bristles, as natural bristles can absorb moisture and rust the door. Use even strokes to avoid leaving any lap marks.

Let the door dry

After the final coat of paint has dried, rehang the door and enjoy your new look!

Add a sealant

To protect your paint job and keep your door looking its best, add a sealant.You can find sealants specifically for painted surfaces at your local hardware store. Simply follow the instructions on the packaging. This is an important step, as it will help your paint job last for years to come.

Scroll to Top