pitch line definition
pitch line means line tangential to the nosings of the treads;
pitch line means a notional line drawn from the floor or landing below a stairway to connect the nosings of all the treads in a flight of stairs;
pitch line means a notional line which connects the nosings of all the treads in a flight or stairs;
More Definitions of pitch line
pitch line. , in relation to a stairway, means a notional line drawn from the floor or landing below the stairway which connects all the nosings of the treads in a flight of stairs;