This is a great breakdown of the money available this summer.
http://www.basketballinsiders.com/maximum-salary-cap-space-projections-for-2018-19/
Here is how I break it down (and I'm going to round off the numbers). It is important to remember - these are the max numbers possible and making the assumption that a bunch of low level players and contracts are just going to either be let go, renounced, not-resigned, etc,:
Lakers -
$60 million but that doesn't include Randle. If they want LeBron at max ($36), they could add him. If they wanted LeBron ($36) and PG ($30), they would still have to shed Ingram ($6) or Deng ($18).
Sixers - $28 but they are probably going to pick up TJ McConnell ($2). So they have about
$26 million to spend.
Mavs - $31 but they will pick up Dirk's $5 million option. So they really have about
$25 million to spend.
Hawks - $26 because Dedmon already picked up his $6 million option. Mike Muscala probably picks up his too ($5). So they really have about
$20 million to spend.
UTAH JAZZ - $19 million because we will definitely pick up O'Neale's $1.5. We still have to decide on Exum and Favors.
Kings -
$19 million because Temple has said he will pick up his $8 million option.
Suns -
$18 million because they will renounce Len, Payton and everybody else.
Pacers - $52 but Thad Young ($14), Bogdanovic ($11), Collison ($10) and Stephenson ($4) are all probably kept. So they really have about
$12 million to spend.
Bulls - $37 but Zach LeVine and Noah Vonleh are probably kept. Let's safely say they take $30 combined, Chicago has around
$10 million to spend.
Nets -
Minimal cap space because they decided to take on Dwight Howard's contract.
Clippers - $16 because Rivers is going to pick up his $13 million option. This also doesn't include Jordan ($24) and Teosidic ($6) who will likely pick up their options. So they really have
no cap space barring a miracle.
Rockets -
No cap space because they will keep Paul and/or Capella and/or Ariza and/or Mbah a Moute.
Spurs -
No cap space because they will likely keep Parker, Green, and have to re-sign Kyle Anderson
Magic -
No cap space because they will likely keep Aaron Gordon.
Rest of NBA (16 teams) -
no cap space.
In other words, 21 of 30 teams have practically zero cap space. Without a substantial trade, only 3 teams (LA, Philly and Dallas) are close to having the money for 1 full max free agent contract. Our Jazz, without Favors, Exum and the non-guaranteed guys (Thabo, Jerekbo and Udoh), have the 4th most cap space in the NBA this summer.