LARGE PLEXIGLASS SHEETS. It's what we do. Plexiglass sheet in XL and XXL sizes are sold and fabricated by ePlastics.com - an Authorized Plexiglas® distributor.
48"x96" is just the starting point. We stock sheets up to 100"x150" and can make sheets even larger by special order. We have a complete line of clear and colored sheet (not all inclusive) in 72"x96", 48"x120", 48"x144", etc.
Keep in mind that this has to fit on/in a truck and through your doorways.
*Allow a couple of extra days on these - custom pallets may be needed. The thinner sheets are not recommended for patio covers - your best avenue is 48x96 sheets, Multiwall sheets of polycarbonate, or our Fiberglass corrugated panels.