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17th October 2006, 01:08 PM #1New Member
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- Oct 2006
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- Bentleigh, Victoria
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- 8
Drilling posts for ballustrade wire threading
Hi there,
I am replacing some timber railing on a deck with capping and horizontal wire infill at 125mm spacing. I am looking for a quality finish so am looking for some advice on how to ensure I am drilling perfectly straight and horizontal through the 90 x 90 existing posts.
Any jigs or other tips out there?
Thanks
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17th October 2006, 01:48 PM #2
Dunny,
How high is your decking? If it's a reasonable distance from the ground you might find that spacing (125mm) is too wide. I think the rules for stainless steel cables have changed recently on balconys to be much closer and posts need to be every meter now I'm told.
HH.Always look on the bright side...
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17th October 2006, 02:00 PM #3
Sounds like a good excuse for a new tool , the Triton cordless drill has a built in guide to sort this prob out
RgdsAshore
The trouble with life is there's no background music.
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17th October 2006, 02:03 PM #4
Yeah I believe that the wires may need to be at 100 mm spacings but I am not sure on the post spacing.
There are drills out there with built-in levels, other than that a small square held in place with a clamp would do the job. Although I found that unless you really drill at a horrendous angle just have the missus eyeball it and unless you are drilling a 2 mm hole for 1.5 mm wire the hole will allow enough movement for the wire to level naturally.
PeteIf you are never in over your head how do you know how tall you are?
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17th October 2006, 02:14 PM #5
Gday Dunny, & welcome
Do you have access to a drill press?
If the posts aren't already in place, you could rig up a long auxilliary table to support each post when drilling on the drill press. Sounds awkward but doable I guess if you're obsessive enough.
If not, you could use a well set up drill press (set so drill bit is 90 degrees to table front to back & side to side) to drill a guide hole through a block that's say 45mm thick.
You could then mark the hole locations accurately on both sides of the post, clamp the block over the top of one mark, and use it to guide the bit in a hand held electric drill. This will get your hole started, remove the guide block & drill to full depth. Do the same from the other side, if the guide block was drilled accurately the holes should meet pretty much OK in the middle of the post.
To reduce/obviate the margin for error when drilling deeply from both sides, buy a long series drill bit to get most/all of the way through the post. If going right through, clamp some scrap tight to the exit side of the post to avoid breakout.
HTH....cheers..............Sean
The beatings will continue until morale improves.
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17th October 2006, 04:26 PM #6
I went through the hoops with wire a few months back - wound up not using it BECAUSE despite the very detailed council regulations regarding to the allowable amount of sag between the wires and the details about how they measure the sag, I could not be guaranteed that even with 80mm spacing (which I was going to use) and the regulation strainer post spacings, that it would be approved. Plus is was going to cost 3 times the price of the powder coated rails I put up anyway.
If you decking is 1 metre or more above the ground, you need to be very careful with the spacing and stretch/sag issues. Ifd it is less than 1 metre, you can proceed as you wish as this is considered a safe height. At least that is the way our local regulations are framed.
As for the other stuff you mentioned, I thinkt he other guys are on the ball with that.
Good luck - wire looks fantastic!
JeffLife is just a leap of faith
Spread your arms and hold your breath
And always trust your cape
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17th October 2006, 05:05 PM #7
I think you will find at least in NSW you can't have anything horizontal that a child can use as a ladder if the deck floor is a metre or more above the ground and the the top rail has to be 1 metre above the deck.
The only thing you can use is verticle slats or solid panel. e.g Laminated Glass, compressed fibro or steel.
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17th October 2006, 05:50 PM #8
Hey guys, went through all this pretty recently. Its all in the BCA may 2006 update.
1. no climbable members (ie horizontal wires) if deck over 4m above ground.
2. No railing needed if under 1m high deck.
3. A table for stainless wires is now in the BCA. The wider the pole spacing, the higher the required tension of the wires and the closer they must be. It is measured by hanging a weight off the wire to measure the deflection. It also has the different wire thicknesses listed. The theory is that it must now resist a 125mm sphere with a certain amount of force, rather than just having a maximum 125 spacing.
4. 865mm high railing for a landing less than 500mm long
Please atatchment for details
Cheers Pulse
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17th October 2006, 06:15 PM #9
I'm not sure if what you say there Barry is building codes but its very good safety advice. My knowledge is playground regulations which are a good starting point for safety anyway. If you go vertical slats the new regs state a 86mm max spacing to stop head entrapment.
EDIT Looks like Pulse has confirmed Building Codes, thanks.
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17th October 2006, 09:39 PM #10SENIOR MEMBER
- Join Date
- Apr 2006
- Location
- Melbourne Victoria
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did mine a bit over 2 year ago. same as pulse re 4 metres obove ground for the floor level. I was 3.5 at worst. At that stage spacing was 125 mm, by pushing a 125 mm ball through. No one at the council would give me an answer of how hard they pushed. One supplier of wire heard of inspectors standing on teh wire.
In the end I went 110 mm spacing, and posts up to 2.1M apart, it fitted the gap I had. The council inspector had to come out through a few phases and I kept talking and asking questions about everything. In teh end he asked the spacing, gave it a jiggle and said it looked good.
Looking back though I now have a 16 month old and I get nervous when he is out there. Will be putting mesh over the top.
When I drilled i just eyed it off and used a templqate with the correct spacings. I drilled jholes only slightly larger than the wire, and crimped eth fittings on after. It now means I can't remove the wire and fittings if need be.
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17th October 2006, 10:21 PM #11
I have seen a few jobs recently where a plastic insert has been inserted into the post or intermediate support, I am guessing to improve the wear that could happen to the post or wire over time or to stop noise caused by the wind moving the wire.
I am not sure but the plastic looks similar in size to the plastic upright used in irrigation sprayers. This really makes for a neat job.
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18th October 2006, 12:36 PM #12New Member
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18th October 2006, 12:38 PM #13New Member
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18th October 2006, 12:41 PM #14New Member
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18th October 2006, 12:44 PM #15New Member
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