22kg per metre = 176kg total weight
If I use one of these, it should be fun getting it 8 feet up in the air onto 6" square beams!!!!!!
Whatever I use it will need to be 8 feet up.
Roof/Pergola started
Moderators: B.Scott, vippymini, Gazza, Manky Sanke
Hi Bob
This company manufacture exhibition display stands. They can probably make a curved section that will span the whole length of your pond front, so you won't have any posts obstructing your view (or net handle!)
http://www.opti-kinetics.com/content/view/405/38/
Or if you know anyone who works around the exhibition halls, maybe there's something being dismantled that needs a good home!
No idea what it might cost, but there's no harm in making a couple of phone calls!
Cheers
Bob
This company manufacture exhibition display stands. They can probably make a curved section that will span the whole length of your pond front, so you won't have any posts obstructing your view (or net handle!)
http://www.opti-kinetics.com/content/view/405/38/
Or if you know anyone who works around the exhibition halls, maybe there's something being dismantled that needs a good home!
No idea what it might cost, but there's no harm in making a couple of phone calls!
Cheers
Bob
Bob, sorry a composite beam is simply 2 or if you want overkill, 3 pieces of ply glued together with epoxy and bolted together, this will be mighty strong, depending on the depth as this is where the strength comes from, some of these other ideas are way over engineered and the weights involved will actually weaken your roof.
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Bolt either side of each joint.
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Bolt either side of each joint.
Hi Stuart
Couldn't agree more regarding the over-engineering bit, but don't agree with your comment about the weight - this stuff is really lightweight and easy to lift into position even for a long span.
I'd just put an extra couple of posts at the front to keep it simple, but if Bob wants an open front I think it's worth him looking at all available options.
Cheers
Bob
Couldn't agree more regarding the over-engineering bit, but don't agree with your comment about the weight - this stuff is really lightweight and easy to lift into position even for a long span.
I'd just put an extra couple of posts at the front to keep it simple, but if Bob wants an open front I think it's worth him looking at all available options.
Cheers
Bob
The old saying, "keep it simple stupid" comes to mind. Take a step back from all the grand designs and don't overengineer it, it doesn't need it! You may have to compromise on the amount of posts along the front Bob and some times construction and physics will take priority over asthetics.
Off to bed now
Jules
Off to bed now
Jules
Bob,
the way I see it you can bring the post in a little, say a metre from either end or put a post in the middle. You can also make the canopy a little bit wider so that the post won't be right next to the pond. If you go for the bringing the post in a little then a 6 m span should be possible in timber without too much effort. A couple of 8x3 bolted together and it won't be going anywhere.
David.
the way I see it you can bring the post in a little, say a metre from either end or put a post in the middle. You can also make the canopy a little bit wider so that the post won't be right next to the pond. If you go for the bringing the post in a little then a 6 m span should be possible in timber without too much effort. A couple of 8x3 bolted together and it won't be going anywhere.
David.
Hi Bob
You could put a post at each corner and another two posts a short distance inside them - i.e. so that you have a short span at each end and a longer span in the middle.
This should give you more support and a shorter span (cheaper materials too) and, so long as the inner posts are no further from the ends of the pond than you can reach with your net, you will still have unobstructed movement with the net when you need to catch the little so'n'sos.
Hope that's clear and is not already one of the ideas you've already rejected.
Cheers
Bob
You could put a post at each corner and another two posts a short distance inside them - i.e. so that you have a short span at each end and a longer span in the middle.
This should give you more support and a shorter span (cheaper materials too) and, so long as the inner posts are no further from the ends of the pond than you can reach with your net, you will still have unobstructed movement with the net when you need to catch the little so'n'sos.
Hope that's clear and is not already one of the ideas you've already rejected.
Cheers
Bob
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Bob Hart
- Site Admin
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- Location: Maidstone, Kent, England
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David/Bob,
We're all thinking the same way now, due to trying to keep the costs down a bit.
On the second photo where I have the 8-metre beam going between the post and the budda's head, I've just moved the budda a bit nearer and around the pond a bit. This moves the beam out a bit, but still under the roof. By moving the post a bit nearer the Budda, I can still have most of the front of the pond open and have a beam 5 to 6-metres long.
So plan number ????
- 2 x 6" posts, one on top of the wall at the far end, one concreted into the ground at this end.
- I need to see what lengths the timber comes in, but as suggested two 6" x 2" beams bolted together, no more than 6-metres apart. Could be less of course, but I'm hopefull this would support the roof.
I will have near 2-metres this end where there is a beam coming tomwards me, which is not supported by a post. I should be able to assist supporting this with an angle brace and perhaps a 4" post on the pond wall right near the patio. I know what I mean anyway.
Will draw on a photo later to make it clearer.
We're all thinking the same way now, due to trying to keep the costs down a bit.
On the second photo where I have the 8-metre beam going between the post and the budda's head, I've just moved the budda a bit nearer and around the pond a bit. This moves the beam out a bit, but still under the roof. By moving the post a bit nearer the Budda, I can still have most of the front of the pond open and have a beam 5 to 6-metres long.
So plan number ????
- 2 x 6" posts, one on top of the wall at the far end, one concreted into the ground at this end.
- I need to see what lengths the timber comes in, but as suggested two 6" x 2" beams bolted together, no more than 6-metres apart. Could be less of course, but I'm hopefull this would support the roof.
I will have near 2-metres this end where there is a beam coming tomwards me, which is not supported by a post. I should be able to assist supporting this with an angle brace and perhaps a 4" post on the pond wall right near the patio. I know what I mean anyway.
Will draw on a photo later to make it clearer.
-
Bob Hart
- Site Admin
- Posts: 2292
- Joined: Sun Aug 14, 2005 8:53 am
- Location: Maidstone, Kent, England
- Contact:
Couple of photo's here to describe the 'latest' plan
[img]http://www.koipix.com/gallery/albums/userpi ... 0beam1.JPG[/img]
Maybe if I get the 6" x 2" pair of front beams at 8-metres long, the overhang at the front end will be nicely fixed.
[img]http://www.koipix.com/gallery/albums/userpi ... 0beam2.JPG[/img]
[img]http://www.koipix.com/gallery/albums/userpi ... 0beam1.JPG[/img]
Maybe if I get the 6" x 2" pair of front beams at 8-metres long, the overhang at the front end will be nicely fixed.
[img]http://www.koipix.com/gallery/albums/userpi ... 0beam2.JPG[/img]
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Smart Koi
- Nurse Shark
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- Location: Harold Wood, Romford, Essex
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Hi Bob,
Looking good over there.
Another option could be Fibreglass. One of my dad's cousins was looking into importing Fibreglass joists from China to span longer distances. Apparently they are as strong as steel with a fraction of the weight. If you boxed it in you would never know the difference.
Just another idea to throw around.
Cheers mate, Dean.
Looking good over there.
Another option could be Fibreglass. One of my dad's cousins was looking into importing Fibreglass joists from China to span longer distances. Apparently they are as strong as steel with a fraction of the weight. If you boxed it in you would never know the difference.
Just another idea to throw around.
Cheers mate, Dean.
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Jose Antonio
- Lemon Shark
- Posts: 36
- Joined: Fri Dec 29, 2006 2:01 pm
Hi for all.
I suffered a similar problem. Many distance to covering. Exactly between 8 and 8,5 meters. I consulted in many sites, he did not want to construct a roof with two faces, I do not like much.
Ultimately calculating weight, I solved the problem. For it I bought bars of pipe of steel of 60mmX40mm, of 6 meters of length. I welded an extension to each one of 2,5 meters.
To avoid the curvature down for the weight of the steel, I reinforced them 2 ends with 2 meters of the same pipe, every soldier.
The result is that with a very light structure of steel of weight, I have managed to cover a great surface and without you curl down.
In my pond it has had days of temporarily of air and has not suffered anything. And they are two complete pergolas.
In this one photo you can see the system of construction. It is very simple and I hope that the idea can be useful to tàor to another companion, like I take advantage of yours ideas.
[img]http://i20.photobucket.com/albums/b206/jasg ... e/x3-1.jpg[/img]
[img]http://i20.photobucket.com/albums/b206/jasg ... e/x1-1.jpg[/img]
Regards
I suffered a similar problem. Many distance to covering. Exactly between 8 and 8,5 meters. I consulted in many sites, he did not want to construct a roof with two faces, I do not like much.
Ultimately calculating weight, I solved the problem. For it I bought bars of pipe of steel of 60mmX40mm, of 6 meters of length. I welded an extension to each one of 2,5 meters.
To avoid the curvature down for the weight of the steel, I reinforced them 2 ends with 2 meters of the same pipe, every soldier.
The result is that with a very light structure of steel of weight, I have managed to cover a great surface and without you curl down.
In my pond it has had days of temporarily of air and has not suffered anything. And they are two complete pergolas.
In this one photo you can see the system of construction. It is very simple and I hope that the idea can be useful to tàor to another companion, like I take advantage of yours ideas.
[img]http://i20.photobucket.com/albums/b206/jasg ... e/x3-1.jpg[/img]
[img]http://i20.photobucket.com/albums/b206/jasg ... e/x1-1.jpg[/img]
Regards