Abbott ... from the deck to the top of the white collar you see on the umbrella pole is 40" .... not sure how much additional length the umbrella section rod itself will add. (Likely no more than 3ft) Umbrella will also tilt. Bought it at Target, and they have similar ones for around the same price (~$20) ... and they're 6' tall. My guess is this one is the same length.
BUT ... I could raise the umbrella higher if I wanted it higher. All I'd need to do is remove the cotter pin, lift the umbrella pole up as high as I wanted it, drill through the cotter pin hole into the umbrella pole, then replace the cotter pin. I placed the cotter pin through them to stop the wind from lifting the umbrella out of the upright PVC pole ... which it did on the first trial run.
(You can see the cotter pin head just to the left of the Coke can ... it's the little silver circle backdropped by the black Handi-holder)
This setup has been modified since this picture was taken. You will notice that the seat pole is an offset pole, and the PVC T allows the whole setup to wobble side to side a bit. It also does that when I'm using a regular straight pole, but I've modified it with a reducer and a section of PVC pipe that goes around the straight seat pole .... so no more wiggle room. My buddy is fixing up a mod for the offset pole, using clamps & threaded rods, but I haven't gotten around to getting my offset pole over to him for measurements. I prefer using the offset seat pole, as it's more comfortable and doesn't crowd my knees so close to the rod holders.
I'm using 1.5" PVC pipe, and the straight seat pole is about 1 3/8" ... and that little bit of "wiggle room" allows the umbrella to sway several inches left/right of center. The added length of pipe (~ 7" long) and the reducer cap (1.5" wide) fits snugly against the seat pole, and doesn't allow any "wiggle room".