What is the max room size?

What is the max room size, and how much does it cost for each upgrade?

Considering that every upgrade would add 1 unit to the side.

1 Answer

So far, I have found that you can at least increase it by 5 units (a unit being half the length of the purple square rug which you unlock early on in the game) - with the price for increasing the size being 10, 25, 50, 75 and then 100.

I have not increased the room to have five extra units yet in one direction, but I have a feeling from looking at PewDiePie's own room as it is right now, it might be six extra units.

Here are a few images to try and measure what it actually is:

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