I recommend that you use snake and mouse fencing because it has smaller holes and other animals are less likely to get in. The thing is that if you want a hutch that stays on the grass or is up above the ground. For one on the ground use untreated timber(because the G-Pigs will most likely knaw at it) and make a 75cm by 50 cm (for one guinea pig, if more double) make sure there is a bottom on it. I recommend you make a lid because then the birds are less likely to come and eat or attack your guinea pigs as for the outside of the hutch make a frame of untreated timber and stick the wire around it using a staple gun or nails. If you wna't it elevated (off the ground) use the 75cm by 50cm part but make sure you feed them lots of greens and grass. As Giraffe said fill the wooden bit with bedding about 5cm thick. Using ceramic bowls food, water bottle and a tunnel you can just use a pvc tube.
Ps: I had to make my guineapig hutch as well it really doesnt take that long
Hope this helps Gelati
Ps: I had to make my guineapig hutch as well it really doesnt take that long
Hope this helps Gelati