To join skirting boards end-to-end, particularly on a flat wall, the standard method involves creating a scarf joint. This is achieved by cutting both pieces of skirting board at a 45-degree angle, but in opposite directions, allowing them to overlap seamlessly.
Creating a Scarf Joint for Skirting Boards
Joining skirting boards end-to-end using a scarf joint helps to make the join less visible compared to a simple butt joint (where the ends meet squarely). The overlapping angled cut also provides a larger surface area for adhesive, adding strength to the joint.
Here are the steps involved, based on common practice and techniques like those described in the reference:
- Prepare the First Board: Take the first piece of skirting board that needs to be joined. Position it where it will be installed and mark the spot where the join is needed.
- Cut the First Board's Angle: Based on your mark, cut the end of this first skirting board at a 45-degree angle. The angle should typically slope away from the visible face of the board towards the wall side, or in a direction that allows the second piece to overlap neatly on top.
- Prepare the Second Board: Take the second piece of skirting board. The reference indicates you should "grab the other skirting board turn it around mark. The spot." Position this second board next to the first, aligning it as it will be installed, and mark the corresponding point where it meets the angled cut of the first board.
- Cut the Second Board's Angle: Cut the end of this second board at a 45-degree angle in the opposite direction to the first cut. This opposing angle is crucial so that the two angled ends overlap perfectly when brought together.
When executed correctly, these two opposing 45-degree cuts create a long, sloping surface on each board that mates together, forming the scarf joint.
Benefits of the Scarf Joint
Using a scarf joint for end-to-end skirting joins offers several advantages:
- Less Visible Seam: The angled overlap makes the join less noticeable, especially once filled and painted.
- Increased Strength: The larger surface area created by the angle provides more contact for adhesive, resulting in a stronger join than a simple butt joint.
- Accommodates Movement: Wood can expand and contract with changes in temperature and humidity. The scarf joint is more forgiving of minor movement compared to a butt joint, which might open up over time.
Once the cuts are made and the pieces fit together correctly, the joint can be secured using wood glue, panel adhesive, and potentially small pins or screws before the skirting is fixed to the wall. Any minor gaps can then be filled and sanded smooth before finishing.
