is 50% of my income too much for a mortgage?

Looking at $320k homes on a $100k salary has me so confused! I can only put down $20k, making my mortgage ~$2000/month—that's half my take-home pay after maxing retirement accounts. Is this normal? Sustainable? I'm debt-free but the numbers make my head spin! What percentage of your income goes to housing? #firsttimehomebuyer #mortgageadvice #financialplanning