Being able to tie into a rope is a fundamental thing that all rock climbers need to learn how to do. If you can’t tie into a rope then you won’t be able to climb safely. Whether you are climbing indoors, outside, ice climbing, trad climbing etc you have to learn how to tie in. But before we teach you how to tie in lets talk about ropes.
In most cases you will be tying into a single, but there are cases in which you will use two half ropes to tie in, but you won’t need to know about that until you’re a little more advanced. Most single ropes are between 9.5-10mm in diameter, but you can get single ropes that are 9.1 or 10.3. What is meant by single rope is that you can safely climb on it as a single strand of rope. Half ropes are not certified for use as a single rope. Single ropes are put through serious testing and have to meet a certain standard for them to be certified as a single rope. If a rope is certified as a single rope it is safe to climb on. If it’s certified as a half rope you need another rope to make it safe. Also there are some ropes that are dry treated and ones that are not. If a rope is dry treated it means it won’t absorb water as much and can be used for ice climbing. When ropes absorb water they are compromised and can not be used. Once the rope is dry again it’s fine to use again. Just never use a rope when it’s wet. Dry ropes are usually way expensive and they are only going to be worth it if you live in a very wet climate or are going to ice climb a lot. I would say for your first rope, get a non dry treated rope. You also need to choose a length of rope. Ropes are measured in meters and they common sizes are 40m, 60m, and 70m. For most cases a 60m rope will be long enough (remember you can only climb as high as half your rope). But I would suggest getting a 70m rope because it’s just a great all around rope. You can use it on big climbs and short climbs and you can even use it in the gym. If you are planning on doing a lot of indoor climbing a 40m rope will be best because it’s lighter and less of a hassle to haul around. But you won’t be able to do much outdoor climbing with it.
Now that you know what rope to buy check out this link to learn how to tie in.


