1. CANVAS WITHOUT FRAME: 2person may carry lightweight person go upstair or downstair with easily,
but make sure your staircase is wide enough for 3person to go up or down
or if you are 1person to carry oku, this is also suitable
if you want to carry heavy person upto 130kg, there should be 3 person for safety
2. with STEEL FRAME: 2person may carry heavy person
Check your staircase design and Helper ability before you choose without frame or with frame
But with frame is always better
if seldom use, steel frame is good because low price
just keep in good condition, it also can be used for long long time
Sometimes you may rolling the patient if you are 1person only