My two, which are around the 1 metre mark now, each have their own enclosure which is 3ftL x 2ftD and 1.5ftH. I reckon they will stay in that for at least another year or two. They look a long way off from out growing them. And I feed them fairly steady every 7-10 days.
and this is my male Irwin on my new $150 Irwin bronze limited edition figurine and a few out in the yard, he's by far my favourite python, great handler, great feeder, just a gem of a bredli, he is currently 124cm/ 4ft and weighed 376grams a month ago, he is 16 months old
Enjoy
Bax