My massage table is rated for 600 pounds. Please weigh less than that if you come to my office for a massage.
There are tables with hydraulic lifts to make it easier to get on and off the table, and these may have a higher weight rating. Call around to ask massage therapists if this is an issue for you.
Other than that, you aren't too fat to get a massage. God made us in a variety of sizes, shapes and colors, all pleasing ot his eyes.