Standard Table Height: The standard height for a dining table is typically between 28 and 30 inches (71 to 76 centimeters) from the floor to the tabletop. This range is comfortable for most users when paired with standard dining chairs or benches, whose seats are about 18 inches (46 centimeters) from the floor.

Chair Height: Consider the height of the chairs you plan to use. There should be a clearance of 10 to 12 inches (25 to 30 centimeters) between the chair seat and the table's underside to allow for leg space and comfortable seating.

User Comfort: Think about the people who will be using the table most frequently. If you're able to customize, consider their leg lengths and seating preferences. It's important that there's ample knee room and that the table isn't too high or too low for dinner guests.

Functionality: Determine the primary use of your table. Will it solely be for dining or will it serve multiple purposes, such as working from home or children's homework? Sometimes, a slightly higher table can be more versatile.

Custom Heights: If you’re considering a non-standard table height, remember to adjust the height of dining chairs accordingly, or consider using adjustable chairs.

Species of Table Leg: If you're selecting decorative legs, such as turned or tapered legs, make sure to measure the leg from the top where it connects to the table to the bottom. Decorative elements should not interfere with legroom.

Flooring: Take into account the flooring in your dining area. If you have thick carpets, you might want to add an inch or so to compensate for the sinkage.