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Results 1 to 15 of 24
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17th October 2007, 04:23 PM #1
Novice
- Join Date
- Jul 2003
- Location
- Melbourne
- Age
- 46
- Posts
- 7
Advice (to make sure im on the right track)
Hi All,
Could you experienced types please confirm that Im getting all the bits and peices required (at a fair price) to successfully build a deck/pergola out the back of my house?
It will be attached to the house using a ledger for the deck. All but the deck will be primed and painted.
Deck/Pergola
4500x4500 (20sq/m)
Ledger: 140x45x4500
Stumps: 1500 spacing
Bearers: 1500 spacing
Joists: 450 spacing
Pergola Beams: 240x45x4500
Materials.
Deck:
2x Cypress Pine Dressed Seasoned F7 Timber Posts (115x115x3000) @ $26.90/m = $161.40
9x Concrete Stumps (100x100x500) @ $8.25/m = $37.15
5x Bearers Treated Pine H4 (140x45) @ 7.80/m = $175.50 (1 of these is the ledger)
10x Joists Treated Pine H4 (90x45) @ 5.20/m = $234.00
Pergola
4x CCA Kiln Dried Treated Pine F5 H3 Laser Cut Beams (240x45x4800) @ $13.30/m = $255.35
Merbau Decking
Im not sure which one to go.. 70 or 90.. At the moment im swaying towards 90mm
90mm $3.75 (special) @ 277 l/m = $1038.75
70mm $2.85 (special) @ 357 l/m = $1017.45
(the above is costed at 25sq/m instead of 20sq/m to allow for mistakes)
Total: $1902.15 (using 90mm merbau) or $1880.85 (using 70mm merbau)
Besides screws, joist hangers, framing anchors etc.. Does this sound about right?
The rest of the pergola will be built at a later date. I wish to add in a hipped roof when the time becomes more available (in the new year)
Edit: Cement.. How deep are the concrete stumps meant to go and roughly how many bags of cement would be needed for this project?
Thanks for any info you can give me!
Bain
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17th October 2007, 09:59 PM #2
I will watch this thread with great interest. Anyone here want to spend two hours going over the list with no plans posted and then take a silly guess?
Cheers,
Bob
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17th October 2007, 10:18 PM #3
I think what HB is driving at is, even a hand-drawn sketch would give us an idea of your needs.
As for the stumps, I'd normally put 1/3 of them in the ground (but if it is a two storey deck then that changes things). An experienced deck builder I'm not, I've only done about four smallish ones, although they are some tradies on the forum who may help here.
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17th October 2007, 11:11 PM #4
Intermediate Member
- Join Date
- Jun 2007
- Location
- Melbourne
- Posts
- 31
Hi
I am looking at doing a similar deck 6m X 4m
so will also be interested in this post
Is it better to use concrete stumps oo
use timber with metal brackets in concrete
cost difference/effectiveness??
Thank you
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17th October 2007, 11:14 PM #5
Looks to me like you've done your homework, a fair bit more than some anyway.
How about either a pic of the site or a sketch of what your looking at. I think some of the punters here are using the free Sketch Up? software for mockups
I think you've miscalculated the number of stumps, possibly should be 16 and the spans your looking at are dependant on the sizes of the timbers being used. You may need to refer to some span tables to be right on the money, failing that your supplier can give you a heads up.There was a young boy called Wyatt
Who was awfully quiet
And then one day
He faded away
Because he overused White
Floorsanding in Canberra and Albury.....
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18th October 2007, 09:21 AM #6
Novice
- Join Date
- Jul 2003
- Location
- Melbourne
- Age
- 46
- Posts
- 7
Oh lordy!
My bad guys, i could have sworn i typed in its only 500mm from the ground.
Sarcasm is not needed fella's.. We were all novices at this at one stage..
There is a ledger on the house, if it were off the house that would make the 16 stumps.
Im downloading Sketchpro 6 now and will try my hand at drawing it up.
Ill also take a pic of the area it will be built in.
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18th October 2007, 09:42 AM #7
Senior Member
- Join Date
- Feb 2006
- Location
- vic
- Posts
- 174
You might wanna include double joists for the ends depending on how you wish to finish the decking, what about the beam that picks up the pergola rafters ? is pergola unroofed ? what about battens ?
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18th October 2007, 09:43 AM #8
You're right. We were all novices at one stage. But, sarcasm is one of god's gifts to humanity. No ill will intended, only a bit of welcome to the forums. Don't get yer knickers in a knot.
Anyway, you've got some good advice (apart from mine), so go for it. And no worries, I am just a curmudgeon. Ask anybody.Cheers,
Bob
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18th October 2007, 03:31 PM #9
Novice
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- Jul 2003
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- Melbourne
- Age
- 46
- Posts
- 7
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18th October 2007, 09:01 PM #10
Great sketchup model.
One thing though, your joists are lying on their sides!Ray
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18th October 2007, 09:16 PM #11
Novice
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- Jul 2003
- Location
- Melbourne
- Age
- 46
- Posts
- 7
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19th October 2007, 12:51 AM #12
SENIOR MEMBER
- Join Date
- Apr 2005
- Location
- Sydney
- Age
- 64
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- 882
It looks like you've done your homework, and your prices look right. Ask for a discount since you're getting a bit of quantity there. An order worth a couple of grand should get you about 5% off. Shop around.
One thing, I'd only allow about 5% wastage (offcuts) on the decking, but you may have to pick up an extra stick if you're unlucky and end up with big offcuts. 10% wastage would be heaps, and then you could toss the odd rough bit that you may get.
A bit of decking left over comes in handy for all sorts of things, but unless you've got something in mind, I wouldn't get an extra five square metres.
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19th October 2007, 09:01 AM #13
Novice
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- Jul 2003
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- Melbourne
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- 46
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- 7
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19th October 2007, 09:53 AM #14
Couple of observations:
1. You might want to check the span of that pergola beam. I presume there's no roof going on it, but the widest span in my tables for a verandah plate under a sheet roof is 3600 and it is about a 240x70 member.
2. How are you planning to fix the end joists to the back of the posts? If I was doing it, I would carry the bearer past the post and have the joist come all the way through on the outside of the post. The joists would also carry on past the bearer. I would also have a joist against the inside of the post. When I put the decking down, I would run a board along the outside joist, parallel to the joist and mitre it into the first board across the front, which would also be outside the post."I don't practice what I preach because I'm not the kind of person I'm preaching to."
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19th October 2007, 12:08 PM #15
SENIOR MEMBER
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