The Butt Joint:- Used to join 2 pieces of skirting baord along its length

      Although this method is the easiest and quickest way to join 2 lenghts of skirting board together it will
      probably remain highly visible after decoating and will also be prone to cracking

     

      The Headed Mitre Joint:- Used to join 2 pieces of skirting baord along its length

    when you need to join lengths of skirting board together to make it longer the best and neatest way is to
    use the Headed Mitre Joint. This method has several advantages over the easier Butt joint method.
    This joint will be easier to sand down and blend in, than a Butt Joint and the joint line will be far less visible
    after decorating, if the joint is cut correctly.

Headed Mitre Joint

     The internal Mitre Joint:- Used to join 2 pieces of skirting baord at an internal corner.

     This method of joining internal corners is probably much quicker and easier than the correct
     scribe joint. It is not normally recommended because there will be gaps in the joint if the walls
     are not square to each other and the joint will crack and open up when the boards shrink or
     expand with changes in room temperature and humidity.

Internal Mitre Joint

    Internal Scribed Joint: - Used to join skirting boards together at an internal corner.

    Although this joint is trickier to cut than the internal mitre, this is the correct and best way
    to join skirting boards at an internal corner. Only the one board needs to be scribed and it will be
    okay to use on corners under 90°and if it is undercut it can be used in corners above 90°.

The Scribed Joint

     The external Mitre Joint:- Used to join 2 pieces of skirting baord at an external corner.

     Probably the only way to join 2 skirting boards together at an external angle. Normally this joint
     is cut at 45° each side to create a 90° corner but with care can be adjusted to suit joints above or
     below 90°.

External Mitre Joint

    The Architrave Mitre: - Used to join together the legs and head of architrave door sets.

    Unless you plan to fit Rosette Blocks this is the only way to join basic architrave legs and heads
    together.

Architrave Mitre Joint