Medium:
Product Dimensions: 63"*35.4"*26.8"
Maximum Capacity: 500lbs
Seat Cushion Thickness (unfolded): 15.7"
Width (folded): 70.9"
Backrest Length: 31.5"
Armrest Length: 35.4"

Large:
Product Dimensions: 78.7"*36.2"*27.6"
Maximum Capacity: 500lbs
Seat Cushion Thickness (unfolded): 15.7"
Width (folded): 72.4"
Backrest Length: 39.4"
Armrest Length: 36.2"

Comes with:

Side Support Brackets*2
Back Support Bracket*1
Compressed Quality Mattresses*2
Angled Padded Armrests*2
Pillow*2

- All parts are reasonably easy to carry and move around and can usually be handled by just one person.