General Dimensions:

Tub Width: 25"
Tub Height: 17 1/2"
Bottom Tub to Top Footrest: 22"
Tub Length: 53 1/2" 

Massage Chair 718 Dimensions:
Seat Width: 23"  
Armrest Width: 31"1/4
Armrest Width (with Open Trays): 47"1/2