Indy Total Construction

For a tight fit, you should only measure and cut a skirting board after fixing the adjacent one in position. What’s more, neatness dictates that the ends have to be cut in the right way.

External corners are always mitred. You can use either a deep mitre or box, or a circular saw which should be set to a 45° bevel, and drive light nails through the completed joint. Where walls meet at odd angles (eg, round bay windows) you’ll have to gauge each angle with a sliding bevel, and measure it with a protractor. Then re-set the bevel to half the angle, and mark the pieces accordingly.

On internal corners, however, a mitre will tend to separate and show a gap because, when you fix the second board against the wall, it will tend to move away slightly from the first board. The answer is to scribe the profile of the molding onto the second board — see opposite. Cut it out so that its end fits snugly into position over the first board. Then cut it to length at the other end. (Plain boards, of course; can just be butt-jointed.)

The fixing itself depends largely on what’s behind the old skirting. If it’s fairly recent, the plaster will probably run right down to the floor, the skirting being simply nailed on top of it. Nail the new piece on in the same way, using masonry nails long enough to pass through both layers of plaster and into the brickwork — say 63mm (2 1/2in).

For a hollow timber-framed stud partition, use ordinary oval or lost-head nails, making sure they pass through the cladding and into the timber sole plate (into the studs. too, in the case of wide skirtings). Ordinary nails will also do for solid walls of soft blocks.

Skirting boards are generally the widest and longest moldings around the house. They’re fixed, of course, along the bottom of walls, where they prevent damage to wall coverings and make a neat join with the floor.

Sometimes plain square-edged timber – say 150x25mm (6xl in) planed – forms a skirting, but molded pieces arc more usual. Nowadays ‘torus’, ‘ovolo’, ‘ogee’ and the plain chamfered and rounded types are by far the commonest. Plastic skirting boards are another modern development.

A gap between the skirting and the floor surface can easily be hidden with a quadrant molding – nailed to the skirting. not the floor, so any shrinkage or swelling in the floor won’t open up cracks visible from above.

If a skirting board has simply come loose, use a torch to look behind it for any wooden battens or plugs into which the original fixings may go. Then nail through into these. If the plaster continues to the floor, nail through it into the masonry behind. But if there’s bare brickwork without such battens or plugs – or if your nailing loosens previously sound fixings – you’ll have to use countersunk screws and wallplugs, inserted into holes made with a masonry drill.

If, however, actual damage or rot demands the removal of one or more whole sections, a bolster chisel makes a good lever for prising boards off. The best place to begin removal is at an external corner; otherwise take the overlapping board at an internal corner, or start at the point where the skirting meets the doorway.

Usually skirting boards are nailed in place, but you must be alert for screws (their heads may be covered with filler or even wooden plugs). Unscrew them. first, or, if that’s impossible, cut away a little plaster above the skirting board and slip a cold chisel behind the skirting to chop through them before you finish prising the board off.