To determine

**the**rise and run of**the steps**, measure**the**distance from**the**floor of**the deck**to**the**ground and divide that number by 7.5.**The**result will be**the**number of**steps the**staircase will need (e.g.,**deck**is 112" from**the**ground; 112/7.5 = 14.93. Round up to get 15**steps**).Keeping this in consideration, how high should a step be?

The general rule (in the US) is 7-11 (a

**7 inch**rise and 11 inch run). More exactly, no more than**7 3/4 inches**for the riser (vertical) and a minimum of**10 inches**for the tread (horizontal or step). You can find some more information here as well on other stair-related dimensions.