Summary: Learn how to build an arch.
An arch can be fitted in any type of wall. To build an arch into an existing wall, follow the instructions in creating a doorway to create the door opening.
Having created an opening in the wall and secured the wall with a lintel, you can attach an arch former. These can be fitted to any type of wall and are usually steel mesh, although ornate plaster models are available. Extending sections can be purchased for large openings. For this project we are looking at fitting a steel mesh former.
Plaster the surface of the soffit first, starting at the archway's lowest point and working up towards its peak, then do the sides of the arch.
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