How to Cut Skirting Board Corners

Cutting skirting board corners correctly is essential for achieving a professional finish when installing skirting boards.

There are two main types of corners to consider: internal corners and external corners.

Tools You May Need

  • Mitre saw or mitre box

  • Hand saw

  • Pencil

  • Tape measure

  • Sandpaper

Cutting Internal Corners

Internal corners are typically finished using a scribed joint or a mitre cut.

Steps:

  1. Cut the first skirting board with a straight 90° cut.

  2. Cut the second board using a 45° mitre cut.

  3. Scribe the profile to match the first board if necessary.

  4. Fit the boards tightly into the corner.

This method helps create a tight joint even if walls are slightly uneven.

Cutting External Corners

External corners are usually cut using two 45° mitre cuts.

Steps:

  1. Measure the corner carefully.

  2. Cut each board at a 45° angle.

  3. Join the boards together to form a clean 90° corner.

  4. Fix in place using adhesive or nails.

For the best results, lightly sand the joint before painting.