Get another crib or not?

🙃

So my first baby boy will be 14 months when our second baby boy is born. We are planning on having our 2nd in our room in a bassinet until he is 6 months old so our first will be 20 months at that time... would it be too early to put him (the 20 month old) in a toddler floor bed and give our second the crib or should he stay in the crib longer and we buy a second crib? This is the kind of bed I’m thinking for our first when he’s 20 months if we do use a toddler like bed.