neb: An indirect answer, but if there's not too many pages to do you can also DIY it with a perforation cutter and a ruler.

Thanks, but we'd be looking at more like 100 reams.

A5 sheets no good?

https://www.officemax.co.nz/Paper/Other-Sizes-Copy-Paper/PaperOne-A5-80gsm-White-All-Purpose-Copy-Paper-Pack-of-500-2568918?gs=1&utm_source=google&utm_medium=organic&utm_campaign=organic-shopping&gclid=EAIaIQobChMI4teMl4yd-wIVRJlmAh1j8gxuEAQYASABEgJW7_D_BwE

Gordy7:

 

A5 sheets no good?

 

https://www.officemax.co.nz/Paper/Other-Sizes-Copy-Paper/PaperOne-A5-80gsm-White-All-Purpose-Copy-Paper-Pack-of-500-2568918?gs=1&utm_source=google&utm_medium=organic&utm_campaign=organic-shopping&gclid=EAIaIQobChMI4teMl4yd-wIVRJlmAh1j8gxuEAQYASABEgJW7_D_BwE

 

Unfortunately not. Specific use case requires A4 to be torn in half.

If you plan on putting them thru a laser printer this is very problematic for them pulling apart if its not done right.

If you are looking at 100 reams then it will be far cheaper to get a print shop to do this for you. 

For the number of pages you want to print, get (search for) a laser printer with a laser perforating attachment.

It certainly exists.

This seemed to be the closest place to NZ:

https://megaofficesupplies.com.au/office-supplies/paper-supplies/a4-perforated-papers-and-cards/

Specifically this one: https://megaofficesupplies.com.au/bala-stock-forms-australia-a4-chp-w-a4-plain-with-centre-horizontal-perforation-white-210-x-296mm-80gsm-ream-of-500-sheets/

No idea if they would ship.

robjg63:

 

No idea if they would ship.

 

It appears that they do, but you need to contact them.

ResponseMediaNZ:

 

If you are looking at 100 reams then it will be far cheaper to get a print shop to do this for you. 

 

This. Time is money and a print shop has the gear to do the printing fast and perforate the paper. 50,000 pages is a big job and would best be done with commercial grade printers and paper handing machinery.