Accurately cutting 170mm high skirting

[epatrickt]

Hello - how would you go about accurately cutting 45 degree mitres on 170mm high skirting? I have an old (and cheap and nasty) mitre saw where the arm visibly moves left-right and I have to cut the boards flat which I believe gives rise to potential cupping in the cut. The fancy mitre saws like Makita LS1219L 12" Sliding Compound Mitre Saw doesn't seem to cut as much as 170mm high boards (I think)? Also pretty costly for one job although I'm sure it'd be very handy (thinking about justifying it with my wife...).

While I'm here, some of the wall to which the skirting is going to be attached is missing, that is, it's plastered down to below 170mm from the floor but in places there are gaping holes (flint walls). I was thinking of patching these with carlite bonding ready to use a grab adhesive for sticking the skirting. Sounds sensible?

Ideas appreciated!

Many thanks

 

[epatrickt]

(maybe using a router with some kind of jig? I do have a decent router - no jig though).

 

[Wayners]

You don't need a fancy mitre saw.
Make one easy enough.

Everything you need to know here

 

[epatrickt]

You don't need a fancy mitre saw.
Make one easy enough.

Everything you need to know here

that's pretty good thanks! I guess external corners using a simple saw-jig much like shown in the video?

 

[Wayners]

Scribing joints is way better.
Stick skirting on with foam and polymer like CT1.
Foam gun is cheap enough.

External use some sanding blocks if needed. Make some with PVA and wood. You will with it out

 

[epatrickt]

Scribing joints is way better.
Stick skirting on with foam and polymer like CT1.
Foam gun is cheap enough.

External use some sanding blocks if needed. Make some with PVA and wood. You will with it out

Scribing and a decent handsaw you mean?

My experience of foam is that it goes everywhere and pushes stuff away, expanding for ages. Is there a secret to doing it properly? It’ll grab skirting? It works be nice to avoid having to put bonding in.

 

[mrrusty]

You cut skirting flat in a sliding mitre saw with a bevel set. With a sharp blade it will be 100% accurate. Mine - https://www.bosch-professional.com/gb/en/products/gcm-8-sjl-0601B19160 - 300+mm cutting length perfect for high skirts.

As @Wayners above - Internal joints should be scribed using a coping saw for the twiddly bits.

I also use either grab adhesive (usually "the works") for flat surfaces and foam adhesive where there are gaps behind. Proper adhesive foam doesn't expand as much as ordinary foam, and just needs holding in place for a few minutes

 

[foxhole]

Scribing and a decent handsaw you mean?

My experience of foam is that it goes everywhere and pushes stuff away, expanding for ages. Is there a secret to doing it properly? It’ll grab skirting? It works be nice to avoid having to put bonding in.

If your foam expands you are using the wrong type , you need fixing foam , apply, wait 30-40secs to allow minimal expansion and fix to wall , (this destroys any expansion .)