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18th January 2019, 02:58 PM #1Senior Member
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Timber window frame - thoughts on KDHW and other species?
Hi folks,
My chippy is building a new gable for my house and has advised he can build window frames as part of the process, as long as I supply an appropriate timber. The windows are trapezoid and triangle in shape, but will only be fixed glass.
Has anyone used the DAR KDHW from Bowens (reveals and glazing beads) for this purpose? Would it be better trying to source cedar? I don't mind painting the KDHW if it'll do the job.
Any advice greatly appreciated.
Thanks,
Richard
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18th January 2019 02:58 PM # ADSGoogle Adsense Advertisement
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18th January 2019, 02:59 PM #2Senior Member
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Sketch for reference.
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18th January 2019, 06:12 PM #3
Provided the frames are constructed correctly KDHW shouldn't be a problem. When working at the joinery we made a number of doors, windows and frames from asstd. HWs, inc. Vic Ash, Blue Gum and Spotted Gum.
I would recommend painting the whole frame, inside & out, before glazing and/or installing. Ditto for the reveals & beads. Even after this I strongly recommend a final coat of paint externally after all is in place.
If your chippy has a workshop with jointer & thicknesser where he can mill the timber to final sizes, then all should be good.
If, on the other hand, you're hoping to buy the DAR at close on final sizes, then I wish you luck. I don't know what Bowen's DAR is like, I suspect that like many Bunnies how it's stored is dependant on individual mgrs. and all too often their DAR is warped, cupped, bowed or twisted. The stuff of nightmares to try and wrestle into a quality frame.
Be very, very careful in selecting your pieces and load them up yourself for immediate takeaway; don't just place a bulk order and expect quality stuff delivered to your door. That's a sure way to a headache.
- Andy Mc
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18th January 2019, 06:18 PM #4GOLD MEMBER
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Hardwood for windows? No thanks. Too much movement, too much checking, too much weight.
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18th January 2019, 06:28 PM #5GOLD MEMBER
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Nothing wrong with using the blue primed treated pine
it will be cheaper to buy and to fabricate, you can get the rebated jamb section and a glazing bead and away you go
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18th January 2019, 06:47 PM #6Senior Member
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18th January 2019, 06:50 PM #7Senior Member
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18th January 2019, 06:54 PM #8Senior Member
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18th January 2019, 09:06 PM #9GOLD MEMBER
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It is a very commonly used product that most timber yards will carry , Bun Buns have it too, this is the pink primed version https://www.bunnings.com.au/140-x-31...-jamb_p0052902 but there is another brand they carry that is light blue.
It is the same material that they do your fascia and barge boards with
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18th January 2019, 09:40 PM #10SENIOR MEMBER
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Bowens will be able to source it for you. Most of their stores probably even stock it in standard sizes, ask for L.O.S.P.
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19th January 2019, 03:55 PM #11GOLD MEMBER
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It's not the window manufacturers decision, it's yours. If you are happy with overweight windows with a propensity to open in the joints, crack on planed faces and require copious painting be my guest.
What would I use? In order of choice: Australian red cedar, Californian red wood, Western red cedar, Crows ash, Silky oak. And then there is aluminium.
In situations where a window frame becomes a structural member, requiring strength, I understand the use of hardwood.
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13th February 2019, 11:05 AM #12Senior Member
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Just to update any interested parties - decided on that H3 LOSP pine for the frames; it's almost as expensive as cedar but it'll be painted so the finish doesn't matter.
Now just to figure out how to cut 60° without having to hand-saw...
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