Welcome to our wooden window restoration glossary page! Here you will find definitions for all the technical terms used in relation to sash windows refurbishment. We hope you find this helpful! We've collected a list of common sash window terms and their definitions to help you better understand the specific content thought-out our website and blog. The Glossary section of the website can be useful for you to quickly understand the meaning of unknown terms about wooden windows. The sash window glossary is a list of terms and their definitions, which can help you understand the content of our website. In addition, the Glossary can provide you with links to related articles from our window restoration blog, so you can explore the subject in more depth. If you're ever unsure about a term or concept, be sure to check the Glossary first.


Architraves | Arcs are words that originate from the ancient Greek word epistyle used to describe the plaster feature at the top of columns. In modern architecture, an Architrave | Arcs is used to describe the moulding that rounds of walls, doorways or even windows.

While Architrave is the correct team they can also go by door frames, surrounds or castings.

Architraves | Arcs are typically made out of wood but can come in different materials such as plastics or (rarely) metal.

Architraves | Arcs are used for two reasons. Firstly they are a great way to embellish a room. Although minimalistic designs are favoured in modern builds for their easy to clean nature, they can come in elaborate designs. The second use for Architraves | Arcs is more practical.

They protect the joints between the wall and the door to the exterior side of the window and wall much like the skirting bored dose. Edges to plaster are the most likely places for damage like cracking and crumbling to accrue. An Architraves | Arc around these edges can prevent this.

Other terms

  • Fibre brushes

    Fibre brushes

    The bristles are usually made of natural vegetable fibres but can also be a mix of natural and artificial fibres. Fibre brushes often referred to as masonry brushes, are a specific type of paintbrush that is designed to be used with materials and on surfaces an ordinary bristle brush might not be appropriate for. Fibre […]

  • Semi-gloss


    Gloss is a term that describes how much light can be reflected by a surface-so semi-gloss describes paint or coating that, when dry, has a slight sheen to it. This makes it a great compromise between a matte paint (that produces no sheen) and a gloss paint (that produces a lot of sheen and makes […]

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