You can have shelves and leaping ledges or just shelves, or just leaping ledges ... that's your choice and what the chinchillas seem to like the most.
With you having 2 female chinchillas (one which is probably pregnant now) and one male chinchilla, you are going to need to get another cage ... a.s.a.p. If the little momma delivers in that cage, the kits will end up on the floor of your room instead of on the floor of the cage. Even at six or seven weeks old, they would probably still be small enough to escape between the bars. What you have is a cage made for ferrets, not chinchillas. It's fine, if the chinchillas are big enough, but if they are small enough to get out between the wires, they will, you can count on that possible disaster.
Would it be best to buy them from that websight or is there an easy way to make shelves?
Personally, I could not afford to buy things like that from an on-line store ... if their prices don't get you, the the transport/shipping bill probably would. Besides, I like doing things for my chin, I think they appreciate it and ... it just makes you have a good feeling about doing something with your own hands that is for your little ones. [Or at least it does me ... besides, the money I save goes in the chinchilla bank.
] I take all the change in my purse each night and dump it into my chinchilla bank ... it really adds up fast ... my little bank holds about $100 in change.
For now, if you want to replace the shelves, take the shelf with you to somewhere like Lowe's or Home Depot and let them cut a board to fit inside of the cage. I would suggest 1" x 8" board. Multiply the length of shelves by the number of shelves, if they are they are all the same size to get the length (if they will not all be the same size add the length of each one) to get the total length of the board needed.
You might want to get you a hand saw to cut the leftover scraps into chew blocks for your chins.
You will need 6 or 7 wood screws for each shelf and 12 to 14 fender washers for each shelf. (2 fender washers for each screw) *Make sure the fender washers are larger in diameter than the distance between the bars on the wire (measure them before leaving home) and the center hole of the fender washer must be small enough that you
can not push the head of the screw through the center hole.
Pre-drill the holes for the screws (to keep the board from cracking), making holes for 2 screws on each end {about 1/3 the distance from each side} and 2 or 3 holes (evenly spaced) along the long side of the shelf that will be up against the cage bars ...
Place one fender washer directly against the wood and inside of the cage bars ...
Place the second fender washer between the outside of the bars and the screw head. (It is sometimes best to have a second person helping you.)
Gently insert and screw each screw in place ... loosly ... you will come back and tighten each one when you have put the last one in.
For leaping ledges, I would use 2" x 4" boards cut into 6 or 8 inches in length. Use sandpaper to smooth the edges. Each leaping ledge will need 2 wood screws and 4 fender washers. Place fender washers as described above and secure each ledge in place.
Save your money for the chin bank!
Jo Ann
Check below 8-week Old Kit
Good Reason for using 1/2" x 1" OR 1/2" by 1/2" Wire ... NOT 1" x 2" Wire seen here.
1st picture ... kit exits the cage to get a raisin.
2nd picture ... Back inside, with a smug look on her face, with her prize raisin in her fat little cheek!