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Glossary of DIY Home Improvement Terms - O

This page of our online a to z glossary of DIY home improvement terms is for do-it-yourself terms beginning with the letter 'O'.

• O-ring joint - A plumbing joint where the seal relies on a rubber or plastic O-ring between two surfaces.
• Oak graining - Technique for painting woodwork to give it the appearance of highhquality wood.
• Ogee - A moulding with an S-shaped cross-section.
• Open plan - A living area which is not defined or broken up by fixed partitions.
• Orbital sander - Power sander that makes a series of tiny high-speed cuts to finely smooth wood surfaces.
• Out of plumb - Not vertical.
• Overload - Exceed the working capacity of a circuit.
• Oxidize - Corrosion of metal caused by its combination with oxygen. To form a layer of metal oxide, as in rusting.