How to paint perfect sharp lines [tutorial]

Have you seen beautiful images of painted stripes or colour block walls and wanted to recreate the look but wondered if you’ll end up spending hours touching up with a tiny artist’s brush to get your lines straight? Wonder no more! Follow these steps and you’ll get super sharp paint lines every time.

Tip: I’d highly recommend a self-levelling laser if you don’t want to spend a ton of precious time trying to get accurate measurements and marking different points to get a straight line. (I have this one.)

Self levelling laser from Screwfix

Step 1: Mask your line(s)
Step 1 - Masking
Pretty self explanatory. Use good masking tape. For freshly painted walls, I use the yellow (low tack) FrogTape®. Then dab the tape edges with a damp sponge or cloth to activate the PaintBlock® technology (to seal the tape). Don’t soak your walls please. Just dab with a slightly damp cloth.

Step 2: Seal tape with base colour
Step 2 - Paint base colour
THIS IS KEY! Even with diligent damp dabbing (try saying that 3 times 🙂), some paint may still bleed through. To properly seal the tape, paint along the tape edge with the original wall colour. (E.g. I wanted to paint grey stripes on a white wall, so before painting grey, I painted along the tape edge with white.) This way, any bleed through will be the same colour as the original wall colour. Once dry, the tape edge will be well and truly sealed.

Step 3: Paint your new colour
Step 3 - paint new colour
At last, you get to paint your new colour! 2 coats usually gives a good coverage, but it is up to you to judge how many coats you’ll need depending on the paint you’re using.

Step 4: Pull off the tape
Step 4 - sharp lines
Ahh the moment you’ve been waiting for. Gently does it though! Savour the satisfaction of your super sharp lines.

Arty Home - Kid's Reading Nook - Painted Stripes

The stripes I painted in my son’s reading nook follow the shape of the nook and link the books to the seating area. Pretty happy with them. 🙂

Pin for later:
Arty Home - Painted Stripes in Kid's Reading Nook


  1. 24 May 2016 / 10:28 am

    I am carpenter and will be using your tip to paint customer’s ceiling and walls. Of course, I also use paint sprayer to work with because I think it make me saving energy and techniques work. Thanks for your great suggestion, it is good for whom has tight budget

    • Meera
      24 May 2016 / 9:58 pm

      Delighted that you’ve found my post helpful, Jamie! Hope the job goes well for you!

  2. Mandy wood
    17 June 2020 / 9:42 am

    Love this tip. Going to try it today in my sons room thanks.

    • Meera
      19 June 2020 / 1:13 pm

      You’re welcome Mandy!

Submit a comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.