Use a sprayer or rollers for uniform texture. The best way to paint a steel door is with a professional sprayer, not a rattle can. The second best way is to use foam rollers because both give your steel door a uniform texture. If you paint the door with a brush, you get all kinds of brush strokes in the finished product.
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Frequently Asked Questions
Can I paint my steel entry door?
Can you paint a metal door? Yes. ... You'll need to remove the door from its frame, remove or tape off any hardware, and then sand, prime, and paint the door. It can be a relatively simple job with the right tools.