How to fit polystyrene coving around curtain brackets/pole - HotUKDeals
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How to fit polystyrene coving around curtain brackets/pole

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Sorry, a few more questions regarding my decorating! I'm going to get some polystyrene coving to put up today. I have a few queries about putting it up:- 1) When they say 100mm coving, is that how … Read More
Sophiasky Avatar
4m, 16h agoPosted 4 months, 16 hours ago
Sorry, a few more questions regarding my decorating! I'm going to get some polystyrene coving to put up today. I have a few queries about putting it up:-

1) When they say 100mm coving, is that how far it extends down the wall and across the ceiling (100 mm down and 100 mm across), or, does it mean that 50 mm will extend down the wall and the other 50 mm across the ceiling (so the two lengths add up to 100 mm)?

2) I currently have 4 metal brackets up holding a curtain pole - the standard type of bracket, where the bit that fixes to the wall is around 1.5" in depth with two screw holes. The problem that I have is that if I put up the 100 mm coving (if it does extend down and across by 100 mm each way), the current holes that are drilled will be covered by the coving. I've looked at some narrower coving 700 mm but that too would cover the holes. The holes cannot be drilled any lower as they will be too close to the top of the window frame - there is also lintel that has to be drilled into. I'm just wondering how to get around this - if I put the coving up, would it be possible to cut through it where the holes are in the wall and then insert the brackets and screw them into place, or would I somehow have to cove around the metal brackets (the piece that extends outwards that holds the pole should not be a problem as it will be about 3.5" away from the wall).

3) Finally, I'm looking at buying a coving mitre box to do this, however, the boxes that I'm looking at state that they are only suitable for coving from 100 mm. If I buy the narrower coving (700 mm), would it be impossible to use this mitre box, and if so, how would I get around cutting it to shape (I have never done any coving before) - would I actually need the right saw to cut polystyrene coving or could I get away using some kind of sharp knife?

Any suggestions will be appreciated. Thank you.
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Sophiasky Avatar
4m, 16h agoPosted 4 months, 16 hours ago
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#1
1. 100m height and depth

2. Cut a notch out of the coving to fit around the bracket.

3. Coving mitre blocks usually have lines on the base to line up the coving so your cut is true. I can only imagine that the block you're looking at doesn't have the lines for 70mm. Can you post a link? It's very important when you mitre coving that it's sat in the block correctly or the joins don't work. Watch a few YouTube videos.
#2
Oh yeah, anything will cut polystyrene but I'd use a very fine toothed saw. Is it paper covered or bare polystyrene?
#3
I think you're over thinking this sophiasky :)
yeah like Craig's said it will be 100mm each way as for your brackets it's hard to tell without seeing the brackets but you can either try and make holes in the right place in the coving and push them through or cutting slots for each one.
I would buy the block that fits 100mm so the coving sits flush.
You only get one angle on these plastic blocks though so if you need slightly more than 45° it gets tricky.
#4
craigstephens
Oh yeah, anything will cut polystyrene but I'd use a very fine toothed saw. Is it paper covered or bare polystyrene?

I'm not too sure yet - I'm off to Homebase to get some in a bit - Homebase are selling it cheaper than B&Q.
#5
stefromuk
I think you're over thinking this sophiasky :)
yeah like Craig's said it will be 100mm each way as for your brackets it's hard to tell without seeing the brackets but you can either try and make holes in the right place in the coving and push them through or cutting slots for each one.
I would buy the block that fits 100mm so the coving sits flush.
You only get one angle on these plastic blocks though so if you need slightly more than 45° it gets tricky.

Thank you for your advice. I'll go and buy the 100 mm coving so that it can be used with one of the blocks. Once I have the coving here and can look at the brackets, it will probably look more straightforward as to what needs to be done, however, I will work on the suggestions that you have given me.
#6
Just having a look at the Homebase website - do I need to buy a mitre box that is only suitable for coving - only asking as the ones that I'm looking at there, are saying suitable for wood and skirting (would the angles on these be different)?
#7
Sophiasky
Just having a look at the Homebase website - do I need to buy a mitre box that is only suitable for coving - only asking as the ones that I'm looking at there, are saying suitable for wood and skirting (would the angles on these be different)?

Please ignore this comment, have found one that is suitable.
#8
100mm coving comes down the wall 67mm and out on the ceiling 67mm. Equal - Equal... The 100mm is measuring the c shape holding tape tight to the curve... To fit curtains I cut a slot in Cove and gripfill some wood to the wall. When it's dry screw bracket to the wood.. You need good wood.. Poor wood splits and is to soft. Avoid hardwoods though. Mitre block.. If it's a 100mm width like the picture the one in picture, you need something around 33mm on the bottom edge to pack. Make templates so you can offer up to ceiling and place in block so you know your cutting correct. I'm using some wood as packer in the picture but it can't be seen. I'll find my 100mm cove and block and post picture. http://i65.tinypic.com/2pzg2g7.jpg
#9
You might be better using one of these to cut Cove. They sell at toolstation and Diy stores. Some are plastic. Just run a knife down the soft polystyrene http://i968.photobucket.com/albums/ae169/Wayners123/Mobile%20Uploads/IMG_20170225_100706_zpsya8rhxi5.jpg
#10
This block is correct size for 127mm 5 inch Cove. It measures 83mm across. They don't make a smaller one. Go figure! I pack with a wooden block but i used coloured ones in picture as show up better. http://i968.photobucket.com/albums/ae169/Wayners123/IMG_20170225_101338_edit_1488017697750_zpsxyn6l8ek.jpg
#11
wayners
You might be better using one of these to cut Cove. They sell at toolstation and Diy stores. Some are plastic. Just run a knife down the soft polystyrene http://i968.photobucket.com/albums/ae169/Wayners123/Mobile%20Uploads/IMG_20170225_100706_zpsya8rhxi5.jpg
I used one of these for my bathroom coving. Worked very well.

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