Here’s some information about the acrylic sheet I got for my custom table:
The material I bought is called non-glare Acrylite P-99, originally sized by the manufacturer at 48" x 96" x 1/16" thickness. The local plastics company from which I bought it cut the sheet to the size I wanted, which is 36" x 96", so they just had to cut a slice from the width because the length was already correct. (Note that this is bigger than is needed for the A&A Global 1940 map, but my wargaming table is larger than the A&A game requires). They then shipped it to me by delivery truck, rolled up into a tube about two feet in diameter as I recall (the rolling made possible by the fact that the plastic was just 1/16" thick). The costs (in Canadian dollars) were $60 for the plastic itself, plus $10 for the cutting, plus $30 for delivery, plus another $15 or so for sales tax.