Read this thought it was a pretty cool idea if you have a bunch o plastic bottles and want to greenhouse grow. URL: hMPp://ana-white.com/2011/04/plastic-bottle-green-house-build-guide plastic bottle green house build guide ! How to construct a Greenhouse using Plastic Water bottles !! Well I think from the picture you have already seen, I reckon you will have a good idea as how to make your greenhouse, however take a look here à(hMPp://www.reapscotland.org.uk/reports/greenhouse%20v1.pdf ) there were certain points on the site that I didn’t like, so I adapted my construction a little different to theirs, since my 1st green house I have adapted even more. also I used only 1.5 litre water bottles that friends on the island collect for me, in 3 months I had collected over 7000 bottles, fortunately most had easy peeling labels, the rest are awful to peel, but hey! It’s all for a great cause. Did you know, it takes over 100 years for a single plastic bottle to completely decay? 1)You need a terrific amount of storage space to keep your collected bottles, the greenhouse I made measures 2mtrs x 2mtrs and 1.9 high and took a little over 1000 bottles to make ! 2) It will benefit you, if you put all the different types of bottles in separate sections, I do this as it’s easier to find the same type bottles to make the gaps between each bottle the same ! 3) I find, sharp blades are the best for cutting the bottles, so you will need lots of blades and lots of band aids. ( If you’re anything as clumsy as me ) I use 2” x 2” timber for my frames ( panels ) and all the wood is treated ( stained ) before any bottles are fitted ! ( NOTE ) never ever use nails, screw and glue all wood frame joints, because if you make an error, you will damage the wood trying to prise it apart ! Also make sure you start at the top of the panel and work downwards, otherwise later on when the greenhouse is outside, rain water will get into the cuts and may go mouldy! working from the top ensure all cuts are downward and rain won’t get in ! 4) Clear Silicon ( transparent glue ). I squeeze a little dab of clear silicon in between each bottle when the full panel is finished, laid on the floor I run a soft sweeping brush over the finished panel, to make sure all the bottles are flat, then I squeeze in the silicon ( glue ) this gives greater strength ! 5) When you have measured the diameter of your bottles, you can work out how wide your wood frame has to be, don't guess or you will either be to short or too long, and the bottles will have big gaps in between them, “which looks awful” ( I did this on my 1st attempt, but learned very quick ) the height of your green house is entirely up to you, as you can cut the length of a bottle to any size, the width of your frame is important so that the bottles fit in nice and snug. 6) You must lay your wood frame flat on the floor and put thin pieces of wood underneath the frame to lift it up, this is so the centre of the bottles are centred to the middle of wood frame ( otherwise your bottles will be proud on the other side) and won't look nice. 7) When you see my pictures, you will notice I cut a bottle in half, and I screw the bottom of the bottle onto the inside top of the readymade frame, this will ensure they won’t move about or blow around when its windy ( which is quite frustrating ) ! 8) I then cut about 1 inch off the bottom of every other bottle and insert the top of those bottles into the half cut bottles that I screwed to the wood, this is done all the way along the frame until you get close the bottom of the wood frame. 9) I then put full ( uncut ) bottles along the bottom of the wood frame, now you should have a gap from the full bottle and the last cut bottle, measure this gap and cut a bottle enough so it’s a tight snug fit, then push it into position, do this the full length of the wood frame until you have a full panel. Every 4th row of bottles will have a hole of 16mm ( use a soldering iron to do this ) the top on and the bottom one has this hole, and directly where that hole sits on the wood frame, a 16mm hole is drilled through the wood, then a 15mm bamboo or 15 mm steel bar can be threaded through one end of the frame and inside the bottles until it comes through the other end of the wood frame, ( I cut the bamboo or steel a few mm short so I can hammer a nail underneath it to stop it falling out when you move the frame, without these, the panels will be weak.