[Bruceb]

So, you have the height above the carpet.

The vertical reflectors begin 3 ft. 1 ½ in. above the
FIELD carpet.

You have it's dimensions.

a 4 in. wide, 2 ft. 8 in. tall stripe of retro-reflective material
bordered by 2 in. wide black gaffers tape on the left and right sides

You have it's location relative to another field element.

half is behind the polycarbonate sheet above the LOW GOAL and
half is behind the acrylic panel of the PLAYER STATION

and the low goal, per the drawings is 36.75 inch wide.