Enclosure too small?

[TwinkleToes19]

I got my T. albo a week and a half ago and her enclosure had good bit of space for her but now she has molted. Is it already time for a bigger enclosure, there isn't too much room for her to crawl around but idk what a spider finds partially comfy. I'm posting pictures of my set up, any advice is welcome.

 

[Reptisect]

Currently I house my 15cm female in a 15 gallon cube but I believe it to be a bit large so I intend on moving her into a smaller 10 gallon enclosure of my own design.
Her current enclosure (it looks much bigger than it actually is)

My G. pulchripes enclosure. It is much smaller and better suited for my T.albo

 

[TwinkleToes19]

Currently I house my 15cm female in a 15 gallon cube but I believe it to be a bit large so I intend on moving her into a smaller 10 gallon enclosure of my own design.
Her current enclosure (it looks much bigger than it actually is) View attachment 70320
My G. pulchripes enclosure. It is much smaller and better suited for my T.albo
View attachment 70321

Definitely think I need to get a 10 gallon, poor girl looks cramped in mine, it's a 5 gallon tank I believe. Hate to rehouse her so soon, but such is life. I'll have to wait till after her new exoskeleton hardeners, but I think she'll be ok till then.

 

[Reptisect]

Currently I house my 15cm female in a 15 gallon cube but I believe it to be a bit large so I intend on moving her into a smaller 10 gallon enclosure of my own design.
Her current enclosure (it looks much bigger than it actually is) View attachment 70320
My G. pulchripes enclosure. It is much smaller and better suited for my T.albo
View attachment 70321

Ok so I thought something didn't add up so I rechecked and it turns out I calculated everything in liters not gallons. A 10 gallon would be suitable for larger tarantulas while a 5-7 gallon is better for something the size of a T.albo. I use metric so I had to do a bit of math to figure out the dimensions in gallons

 

[TwinkleToes19]

Ok so I thought something didn't add up so I rechecked and it turns out I calculated everything in liters not gallons. A 10 gallon would be suitable for larger tarantulas while a 5-7 gallon is better for something the size of a T.albo. I use metric so I had to do a bit of math to figure out the dimensions in gallons

I did my math wrong too, she's in a 2 gallon tank rn which is small, but she's a juvie. She's gotten so big over one molt though. Pretty sure she gained almost a whole inch in length

 

[TwinkleToes19]

Ok so I thought something didn't add up so I rechecked and it turns out I calculated everything in liters not gallons. A 10 gallon would be suitable for larger tarantulas while a 5-7 gallon is better for something the size of a T.albo. I use metric so I had to do a bit of math to figure out the dimensions in gallons

Also her leg span is like 4 inches and the terrarium is 8 x 8 x 8 in