When you finally get your hands on Sandbox, draft out your ultimate map design, and fire up Forge to make it happen, you'll need to be aware of two distinct concepts. The first is one that you're more than likely already familiar with: Budget. When most players talk about a map's budget, they're referring to the dollar value assigned to objects and the total dollars available to spend placing them.
Each object is assigned a specific dollar value, and when dropped in or deleted from play, the maps overall available budget is updated to reflect the most recent addition or subtraction. When players tap out the budget, they can't place anymore objects without first removing another.
Got it? Good. But there's another budget you might have to consider when you build your Sandbox map: the Object Limit Number. We'll call it the OLN from here on out in this update (please don't sue us, Outdoor Living Network).
Oh snap, a secondary budget?! Yup. Simply put, a map can only contain a fixed number of total unique objects, regardless of how many budget dollars you have available. When the OLN cap is reached, you're done placing objects, even if you still have money in the bank (shoteh what you drank?). You're then forced to delete something should you want to keep on keepin' on.
So why are we telling you this? Well, in test we frequently ran into the upper boundary of the OLN before we ran out of dollars. You probably will too. We just wanted to make you aware.
We also wanted to let you in on a little trick we learned. It turns out that all the default objects on Sandbox are automatically and irrevocably factored into the OLN. That means that if you delete them and create a blank "canvas," you won't be reclaiming those objects and you'll ultimately hit your OLN value long before you really should.
So, instead of making a "canvas," you should stack all of the original objects off to the side (spawn points included, they're also factored into the calculation), away from your build site, and save them for reuse later. That way, you'll be able to make the most out of the total number of objects you're given to work with.