Standard office furniture assumes a user between 5 feet 6 inches and 5 feet 10 inches. At 6 feet 2 inches or taller, the standard geometry puts you in a compromised position: elbows too high, neck bent down, lower back unsupported. Check the specs before buying anything.
Desk Height
Standard desks are 29 to 30 inches tall. For someone 6 feet 4 inches, the seated elbow height is about 26 inches. A 30-inch desk puts your elbows too high, forcing your shoulders to shrug slightly all day. For tall users, you want a desk that adjusts down to 26 to 27 inches at the low end.
Most standing desks adjust down to 27 to 28 inches, which is enough for people up to 6 feet 1 inch. For taller users, look for desks that specify a minimum height of 24 to 25 inches. The FlexiSpot E7 goes down to 22.8 inches. The Uplift V2 goes down to 24.4 inches. These are the correct picks for people 6 feet 2 inches and above.
The standing height range also matters. At 6 feet 3 inches, your standing elbow height is about 44 to 46 inches. Standard standing desks max out at 48 to 50 inches, which is sufficient. Some budget desks max at 44 inches, which is standing elbow height for a 6-foot person with no margin for adjustment. Confirm the specific range before buying.
Chair Seat Height
Standard chairs top out at 20 to 21 inches of seat height. For someone 6 feet 4 inches, the correct seat height is about 17 to 18 inches measured to the crease at the back of your knee when your feet are flat on the floor. Tall people often need lower seats, not higher ones.
The real problem for tall people is seat depth. Standard chairs have a seat depth of 17 to 19 inches. For someone with a long femur (upper leg), that depth puts the front edge of the seat cutting into the back of the knees. You need a seat that either adjusts deeper (21 to 22 inches) or has a forward sliding seat mechanism.
The Humanscale Freedom chair adjusts seat depth. The Steelcase Leap adjusts seat depth. For budget options under $400, the Sihoo M57 has a deeper seat than most at 19 inches and adjusts higher to 21.7 inches, which accommodates taller users better than similar-priced options.
Monitor Height
At 6 feet 2 inches, your eye level when seated is roughly 45 to 47 inches from the floor. The center of your monitor should be 2 to 3 inches below that. A monitor arm solves this with precise adjustment independent of desk height.
Keyboard and Mouse Height
At 6 feet 3 inches with the desk set to the correct height (26 inches), your elbows should naturally fall to the right position. Where tall people run into trouble is when a desk is shared with a shorter partner and not readjusted. Use the memory presets on your standing desk to save separate heights for each person.
Recommended Buys
Desk: FlexiSpot E7 (adjusts to 22.8 inches minimum) or Uplift V2 (24.4 inches minimum). Both accommodate people up to 6 feet 8 inches when fully extended.
Chair: under $400, Sihoo M57. For $400 to 800, a used Steelcase Leap or Humanscale Freedom. Both have verified seat depth adjustment and accommodate 6 feet 6 inch plus frames.
Monitor: any 27 to 32 inch display on an articulating arm. The arm lets you position the screen precisely rather than relying on desk height plus stand height calculations.