Actually, I'm not sure if my peas need to climb as I think they may be a low growing type LOL but I will definitely need it when planting beans.

I've also heard you can plant cucumbers/pumpkins on trellis set-ups. Has anyone tried this?? If so, some instructions would be greatly appreciated :D

Cheers
L

I don't think pumpkins or cukes are appropriate for this sort of support but certainly climbing peas and beans will be very happy to cover it.

If you want to have pumpkins on a trellis it only needs to be low.. but they will climb great heights if they want.. but at the cost of the crop. For a couple of years I let mine wend their merry way up through a large, dense lemon tree but the fruit was only average sized. I have today just made a 1.5 metre high wire mesh trellis along 2 sections of our colourbond fence for just the sole purpose of growing small pumpkins ( Butternuts are great..very prolific, heaps of punks and they store really well..) as well as rock melons, watermelons and various cucumbers. all of these do not roam far from the plant but they do like their owbn share of sunshine, hence the vertical support. They will also mix in well together although the butternuts have large leaves so best given their own section. Last summer I planted Lebanese cucumbers at the foot of my bean trellis and guided them up it a bit , with some twine,( growth was not more than half a metre) and was rewarded with a constant, fast growing crop far better than ever before.
On the subject of trellis.. We had a 2100 litre (5000 gal) plastic tank installed a couple of years back ( to supplement our drought restricted mains water) and a year ago I decided to run 100mm square wire mesh all the way around it, using pine decking boards to keep it away from the tank and just wired the whole thing in place without screwing into the tank at all.. I planted several types of berry vines around it and they have flourished.. It was a chance sowing of some rockies at the base that showed me how well they ( and water melons) love the full exposure to the sun.. I never thought I could grow these succesfully in central Victoria.
(Photos available if anyone interested..)
So there you go..hope all this helps or is of interest.