DIY Tips
How to Get a Clean Line: Cutting In Like a Pro
The difference between a paint job that looks professional and one that doesn't usually comes down to edges — where walls meet ceilings, trim, and corners. Here's how pros cut clean lines.
On this page
The right brush
A quality 2–2.5 inch angled sash brush is the standard. Cheap brushes splay, shed bristles, and can't hold a straight line. Pros invest in good brushes and clean them properly — the tool matters enormously.
The technique
Load the brush moderately, position it slightly away from the edge, press to fan the bristles, then draw steadily along the edge in smooth strokes. Work in 3–4 foot sections, and don't overwork the paint — lay it down and leave it.
When tape helps (and when it hurts)
Tape gives beginners confidence but can bleed if misapplied and pulls paint if left too long. Pros often cut freehand because it's faster and cleaner — but quality tape, properly sealed and removed promptly, is a legitimate approach for DIYers.
Know when to hire it out
Cutting in is the skill that takes longest to learn. If crisp lines matter — and in a visible living space they do — this is one of the strongest arguments for hiring a professional. Chicago Painting Pros connects you with painters who do this daily: (312) 517-2232.
Need help with your painting project? painters in Chicago — call (312) 517-2232 for a free estimate anywhere in the Chicago area.
FAQs
Beginners get better results with tape; experienced painters cut freehand faster and cleaner.
Usually too much paint on the brush, moving too fast, or a worn-out brush.
Thousands of hours of practice, quality brushes, and not overworking the paint.
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