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Deadline Design With Shaynna Blaze

How to Install a Cornice

Follow these top tips from Mike Griggs on how to carry out this key plastering job at home. 

Cornices are decorative pieces made of plaster. There’s nothing wrong with not using cornices but if you do, make sure they suits the design and style of the room.

Cornicing is one of those fiddly jobs you need a lot of patience with. You’ll need a box cutter and a saw.

1. Measure the area you want to fill. Then, with the help of a box cutter or saw, cut down your cornice to the required length.

2. Add premixed cornice cement to the top and bottom back edge of the cornice. There is no need to put any on the flat back area, as this part of the cornice won’t make contact with the ceiling.

3. Once the cornice is in place, you’ll need to seal the corners with some cement to ensure a smooth finish when it’s ready to paint. Use a small trowel.

4. It will only take a few minutes to set. Once it’s fixed, you are ready to sponge it off and give it a light sand, ready for painting. Make sure you’ve got a sponge that’s nice and moist, wipe off the excess then at the end you’ll have that perfect join.

 
 

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