Picture of Tomato Cage with PVC
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Tomato cages always seem to be too small, too flimsy and simply, not enough for the indeterminate tomato plants I grow.  This year I decided to make a 3-D PVC grid to support my tomato plants.  My final cost was about $55.  The tomato portion of my garden is roughly 6'X7'.  Since your garden will probably have different dimensions, your cuts will be different lengths than mine.
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Step 1: What you will need

Picture of What you will need
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For my garden, I needed
---21-10' pieces of 1/2" PVC pipe
---8 -X shaped PVC connectors for 1/2" PVC
---38 -T shaped PVC connectors for 1/2" PVC
---a tape measure
---duct tape
---a marker, such as a sharpie
---an electric saw of some sort (I used a miter saw)

Step 2: Cutting Tips

Picture of Cutting Tips
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Measure the PVC using the tape measure and mark it with the sharpie.  PVC tends to break easily when cut with an electric saw.  To prevent this, wrap the area to be cut with duct tape and re-draw the line on the the tape.  The duct tape can be removed after the cuts are made.  The length of the cuts for my garden will probably be different from your garden, but I will list them in the following steps so that they can be used for reference.

Step 3: The first cuts

Picture of The first cuts
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I started with the 4 corner pieces and 4 center support pieces and decided that 10 inches into the ground would be enough to keep the grid stable.  I wanted each level of the grid to be 20" above the next, so I made my first 8 cuts at 30" each and pounded each 10 inches into the ground (I drew a line 10" in so that I could be sure to push each piece the same distance into the ground.  The four corner pieces each should have a T-shaped connector bracket on top.  The four center pieces should each have an X-shaped connector bracket on top.
reddace2 months ago

Would like to know how tall is the finished cage? Did you have any problems with it coming apart not gluing it? Totally awesome idea!

goofy gal (author)  reddace2 months ago
It is roughly six feet tall. After the first couple of years it did start to come apart, so I glued it. It is now several years later and is in good condition, except the part where a large tree branch fell on it. Since I glued it, it is really easy to rotate it to different parts of the garden each year. Hope that helps!
PapaGeek2 years ago
I would recommend using a pipe cutter like this one.
zigzagchris4 years ago
nice job. i saw another person with a trlace like this but they cut wholes in the pipes to spray nutrients