How to locate replacement exterior trim online?

[TrevorB]

I have a couple of timber corner trims on the outside of the house (late 60's Fibro) that have rotted at the bottom and need replacement, but I can only seem to find standard right-angle corner trims. This house's corner trims look to be about 10mm thick and have a 45 degree cut where the 2 sides meet so it has 3 equal faces.

Does anyone know what these are known by and where I can get them?  I like this style much better than the generic 2-sided ones.

[MitchellMc]

Welcome to the Bunnings Workshop community @TrevorB. It's brilliant to have you join us, and many thanks for your question about trims.

That’s not a traditional exterior trim I’m familiar with. It almost reminds me of a scotia trim, but it looks like it’s been used creatively and possibly installed “back to front” to create that three-sided effect with the 45-degree mitre.

Because it’s not a standard profile, you probably won’t find an exact match off the shelf. One option would be to try to adapt a scotia or similar moulding to recreate the look. Another approach could be to use two standard trims joined carefully at 45 degrees, then sand and finish to mimic the original.

Let me tag @Nailbag to see if he has any thoughts.

Please let me know if you have any questions.

Mitchell
 

[TrevorB]

Thanks for responding @MitchellMc .

I'm afraid it doesn't look like a scotia trim as the inside is stepped, not curved.

If it helps, it's a housing commission build, so I wouldn't expect they got too fancy with it.

I've drawn up a basic pic of the cross-section (best I can do without removing it)

What would you recommend I try if I would have to fabricate my own?

[EricL]

Hello @TrevorB 

Looking at the trim it does appear be quite unusual. I propose either upgrading to a new modern one or try to emulate the piece by using Mitchell's suggestion of using two standard trims to copy its look.

Let me tag our experienced members @Dave-1 and @Noyade for their recommendations.

If you need further assistance, please let us know.

Eric

[Dave-1]

AFternoon @TrevorB 

I have had to make up trim of my own for cornice Garage lining for stud walls stage 2 (Cornice and skirting boards)  (used two different shapes and glued them together) and also when I was making up my snooker table edges/bumps D.I.Y. snooker and pool table .

However with your trim needing to be exterior, I would actually have a go at making it up yourself.

Cut the maroon cuts first from a square ended 42mm piece of timber.

Then cut the Blue cuts leaving the last (diagonal) cut until you are happy with the back side profile. 

I would practice on some shorter pieces first until you are confident of ripping the timber for a full length/height. Ity may seem daunting (the first one will be terrifying) but the accomplishment you feel when you have done it will be worth it  

As a hardness level working with timber and a circular saw with an adjustable foot, ripping and clamping it in place. Id say a 8 out of 10.

If you have a saw table, then I would say the hardnes swould drop to a 5.

Dave

[TrevorB]

Thanks @Dave-1 and @EricL ,

I appreciate the advice.

[Noyade]

Evening @TrevorB 

"I wouldn't expect they got too fancy with it."

Actually, they went all out with an elaborate trim. 😁

My father's house - he just went with quarter-round in 1958.

For me I would go with a table-saw if you have access to one - or maybe a men's shed?

5 cuts.

Difficulty factor? 3 outta 10, I reckon @Dave-1 . 😁

[TrevorB]

Hi @Noyade 

To be honest, I'm surprised they went with faux weatherboard fibro cladding on this house when all the neighbouring houses are standard fibro sheets, so having a decorative trim probably isn't that out there, but I digress.

I don't presently have a table-saw - the legs rusted off my old one and it fell apart after many years, but I could probably do it with the circular saw and/or the router. Thanks again everyone for your input.

[Nailbag]

Hi @TrevorB 

I think @MitchellMc was spot on with his profile suggestion. Unless you want to go down the difficult process of replicating your own, something like this H3 Scotia would work perfectly. The hollowed internal will jot be seen or required. the external dimensions through 12mm short on each straight edge wouldn't be picked up making it a very easy and turnkey solution.

Nailbag

[Nailbag]

Hi @TrevorB 

With well over 30yrs of power tool training, I personally would rate this rip cut as a "do not attempt" in difficulty with a high danger factor with a circular saw, rip fence or not. There is no possible way you can safely secure the material and control the depth of cut in a dead straight line with essentially under-sized timber. And unless you have a router table, this is far from a free-hand cut either.

Be safe, Nailbag