It started life as 2500x700mm (1.2 thick) and finished a lot smaller.
For the record I used this saw WORX WX423 85mm 400W Compact Circular Saw Worxsaw
https://www.amazon.co.uk/dp/B01AI44P..._v7Xryb0RQJ7RG with this blade
https://www.ebay.co.uk/itm/112033399307 for chopping up all my sheet ally. Sails through it like it's not there.