Allotment Gardening Advice Help Chat

Chatting => Design and Construction => Topic started by: maddave on April 13, 2015, 15:25

Title: How many water pipe hoops for netting?
Post by: maddave on April 13, 2015, 15:25
I'm looking to use some of the blue water pipe to make hoops to support netting and I am trying to work out how much pipe to get.  My beds are 3 metres by 1.5 metres.  Will three hoops 1 metre high be enough to support the netting plus a length of wood 25mm square, laying on top of the hoops down the length of the bed? 

I.e a hoop placed at each end of the bed and one in the middle?

Title: Re: How many water pipe hoops for netting?
Post by: sunshineband on April 13, 2015, 15:43
I would have another hoop, making four in all in 3m. Others may have other advice of course, but that works for me  :D
Title: Re: How many water pipe hoops for netting?
Post by: maddave on April 13, 2015, 15:51
If it works for you then it should work for me!! I dont want a saggy net!
Title: Re: How many water pipe hoops for netting?
Post by: mumofstig on April 13, 2015, 16:09
No, we don't want saggy, do we  :lol:

I'd also add the fourth hoop.
Title: Re: How many water pipe hoops for netting?
Post by: sunshineband on April 13, 2015, 16:12
No, we don't want saggy, do we  :lol:

I'd also add the fourth hoop.
:lol: :lol:
Title: Re: How many water pipe hoops for netting?
Post by: Elm street on April 13, 2015, 16:14
That's the way, One every metre does fine for me!

(http://i1251.photobucket.com/albums/hh550/silhouette1265/Allotment/D1DB5FC9-F4C3-4C5A-8B15-E8C7858CCC56_zpswnjeccjs.jpg)
Title: Re: How many water pipe hoops for netting?
Post by: maddave on April 13, 2015, 17:03
Thanks all. 

Looks good Elm Street. That is what I'm hoping to achieve!
Title: Re: How many water pipe hoops for netting?
Post by: cadalot on April 13, 2015, 19:48
The Anti fox / bird chicken wire is 20mm and the beds are 1.2 x 2.4m

The green netting is also on a bed which is 1.2 x 2.4 and the hoop is 25mm and is cut to a half circle plus 200mm either end for pushing in the ground. The lateral stiffeners on the top and sides help stop the mesh sagging especially when the foxes use it as a trampoline

The small one is 20mm dia, potable on a timber frame measuring 1.2m x 1.2m
Title: Re: How many water pipe hoops for netting?
Post by: Beetroot Queen on April 13, 2015, 21:24
We do four on our 8 foot beds and still get saggy sometimes lol
Title: Re: How many water pipe hoops for netting?
Post by: cadalot on April 13, 2015, 22:11
Not if you roll up the bottom and peg it with tent pegs. I cable tie a timber or plastic batten to the bottom edge.
Title: Re: How many water pipe hoops for netting?
Post by: maddave on April 14, 2015, 09:14
Cadalot, Elm Street, does that green netting you use have a special name?  I need something fine for my cabbages and sprouts. I've seen enviromesh and veggimesh, but they look quite delicate and expensive. Interested to see if there is something cheaper!

Thanks.
Title: Re: How many water pipe hoops for netting?
Post by: cadalot on April 14, 2015, 09:39
Take a look on ebay and use "debris netting" in the search- there are various qualities of netting
Title: Re: How many water pipe hoops for netting?
Post by: maddave on April 14, 2015, 10:28
Perfect. Thank you.
Title: Re: How many water pipe hoops for netting?
Post by: Kristen on April 14, 2015, 18:36
Mine came from tarpaflex

http://www.tarpaflex.co.uk/acatalog/Debris-Netting.html
Title: Re: How many water pipe hoops for netting?
Post by: noshed on April 20, 2015, 20:52
You can get debris netting free off scaffolders if you catch them when they're taking it down. They mostly just put it in a skip anyway. Just ask nicely.
Title: Re: How many water pipe hoops for netting?
Post by: cadalot on April 24, 2015, 06:35
Noshed - I never have managed to get the timing right on that one  :nowink:
Title: Re: How many water pipe hoops for netting?
Post by: cadalot on April 24, 2015, 22:18
I received a pm about the middle hooped frame picture on the 12th April so here are the answers for all you girls and boys

What's the length of the MDPE pipe?

My beds are 1.2m wide so using some math I worked out the length of half the circumference of a circle then added 200mm either end to get pushed in the ground.

circumference of a circle C = 2 pi r
                                    C = 2 x 3.1415926 x 600
                                    C = 3869
                              1/2 C = 3869 / 2 = 1885 long above ground + 400mm to go into the ground

Thus total length of pipe 2385mm - I may have rounded up to 2400mm
                                 
How is it held in the ground?

I have a steel reinforcement bar that I use to probe a hole in the ground my beds are 2.4m long so I probe at each end and then at 800 crs. The water pipe is then just pushed into the ground.

What size is the netting?

2000mm wide and length cut on site over hoops but at least 800 + 2400 + 800 = 4000

How are your stabilizing bars fitted?

They are UPVC trim and have two holes drilled just smaller than the width or diameter of the MDPE pipe for the middle hoops and one hole just under the width of the pipe in from the end and then a cable tie is used.

Anything you can remember really.

The ends are drawn together at the middle at ground level and cable tied
I used to roll up the extra 2000-1885 = 115 divide that by 2 = approx. 60mm and put tent pegs over the rolled section. I now use plastic trim salvaged from a closing window installers like the stabilising bars and roll into the bottom of the netting and cable tie so the tent pegs hold the netting down close to the ground and it stops the foxes getting their noses under it and lifting it but you could use roof tile batten 

I use the holes in the stabilisers to help me set out the hoops when probing the ground.
Title: Re: How many water pipe hoops for netting?
Post by: maddave on April 27, 2015, 09:53
I put up my hoops and netting this weekend. Thanks for all the advice. I bought the pipe from wickes which seemed to be the cheapest. I bought the netting from tarpaflex who were very good. 

I ended up using pipe clips to mount the pipe to my bed edging as I could just leave these in place each year and just unclip and move the netting to different beds as required.

Photos show the clips and the netting before I tidyed up the edges.

My only problem is I don't think the nets are high enough for my sprouts so might have to think of something else for them!

Thanks all again for your help.
Title: Re: How many water pipe hoops for netting?
Post by: mumofstig on April 27, 2015, 10:30
You can raise the pipe up on some lengths of wood/cane, pushed in the pipe ends, to give higher hoops  ;)
Title: Re: How many water pipe hoops for netting?
Post by: cadalot on April 27, 2015, 11:42
I've made higher reinforced hoops for my sprouts but have not tried erecting it just yet, picture is them laid on the ground. I tried the extending on pipes and sticks etc and its always a faff. 

First tie is at the diameter of the circle at the top, bottom tie is about 200mm from where ground level will be when placed in the ground and the middle tie is mid way between the other two. There will be longitudinal ties along the bed at each level and the apex of the roof. I will also add a couple of raking braces on the side one each end and if still not stable enough both sides both ends.

I will upload a photo when it gets built
Title: Re: How many water pipe hoops for netting?
Post by: RJR_38 on May 10, 2015, 11:20
This is my taller one that I use for sprouts and psb for the majority of the growing season.
(http://i1305.photobucket.com/albums/s559/Rachel_38/641ec24f5dfca6c0872c2bf4d2f4fe81_zpsq1r2f0j2.jpg)

As you can see my netted beds are not as professional looking as others that have been put on here but they have done the job for the past few years
Title: Re: How many water pipe hoops for netting?
Post by: surbie100 on May 10, 2015, 11:41
I've just started using treated dahlia stakes to make small cages - I like the plastic hoops, but find that my plants push out the netting towards the curve on the hoops as they get bigger. My own fault for optimistic spacing I guess.

The frames are easily dismantled and will be stacked for winter on gutter clips after a dunking in wood preserver. The bird netting is cut to bespoke length/width from Nutley's Kitchen Garden who are really helpful.

It didn't cost that much - whole thing with netting, bamboos, stakes was about £40 for a 4.8mx1m bed and should last a good few years.  :D
Title: Re: How many water pipe hoops for netting?
Post by: RJR_38 on May 10, 2015, 12:51
I love the funky colours!
Title: Re: How many water pipe hoops for netting?
Post by: miggs on June 28, 2015, 15:33
After looking at and reading about these frames on here and on you tube, I have just bought some CLS timber to make my own. Just given the wood its first coat of preservative. I will post pics when it is finished as I am building one first to see how it goes. If all goes well I will make another one.
Title: Re: How many water pipe hoops for netting?
Post by: miggs on July 10, 2015, 16:27
Here is my take on making a cage using Blue water pipe's.
The frames are 2.4M x 1.2M, I made them using CLS timber. They have had about 8-10 coats of preservative on them over the past couple of weeks. I have made these this afternoon. I have the netting in the car. They will now be taken apart and taken to the plot over the weekend.
Title: Re: How many water pipe hoops for netting?
Post by: miggs on July 12, 2015, 09:52
After seeing what I have made, I have already decided to make some more, but they will be a little higher. On the new ones I will cut the Blue tube at 3M length's, this will give me some more head room for sprout's etc. The cost's to make these are as follows. The wood £12, Blue tube £15, debris netting 2M x 10M £10. When they are on the plot I will post some pic's.
Title: Re: How many water pipe hoops for netting?
Post by: miggs on July 12, 2015, 13:37
Took all the bit's down to the plot earlier, here's what they look like without the netting.
Title: Re: How many water pipe hoops for netting?
Post by: mumofstig on July 12, 2015, 16:04
You need to have perfectly flat soil or cabbage whites will get in underneath the wood.........
Title: Re: How many water pipe hoops for netting?
Post by: miggs on July 12, 2015, 16:52
Thanks, don't worry about that they will be bedded down a couple of inches when the Cabbages go in . I just put them in the plot to show how they would look.

Thanks Again.
Title: Re: How many water pipe hoops for netting?
Post by: cadalot on August 06, 2015, 08:07
I tried the really high construction and it didn't work it was unstable before the netting went on so I trimmed it down to about 5 foot high and if you look at the photo I have uses a blue pipe connected to the hoops as a brace to stiffen the structure and provide lateral restraint against wind.

I have plastic along the bottom of the netting which is held in place withplastic milk bottles filled with sand, so pulling up one side at a time I can get in quickly and easily when I need too

Left     Mk  I Version Way too high and flimsy
Middle Mk II Version before I levelled it up a little more and added the sway brace to stiffen the whole frame up.
Right   Mk II Covered with two nets cable tied together along a ridge member