Digital speed square apparatus and method for using the same

A rafter angle square comprising:

• a right-triangular member, said right triangular member having a base edge, said base edge having at least one perpendicular flange along its length, a measurement edge and a hypotenuse edge, said right-triangular member having a first side opposite a second side, said perpendicular flange and said right-triangular member defining an inside corner;
• a distance measuring device located on either said perpendicular flange or said right-triangular member, said distance measuring device adjacent said inside corner, said distance measuring device configured for measuring the distance said rafter angle square is slid along an outside corner of a piece of dimensional lumber inserted into said inside corner;
• a counter device in communication with said distance measuring device, said counter device preprogrammed to count sequentially for a predetermined distance measured by said distance measuring device;
• a digital display on said right-triangular member, said digital display in communication with said counter device for visually displaying an output of said counter device and thus the distance measured by said distance measuring device;
• and
• a sound emitting device in communication with said counter device for emitting a sound at predetermined distance measured by said distance measuring device.

A method of use for a rafter angle square whereby wall layouts can be quickly created, said rafter angle square comprising:

• a right-triangular member, said right triangular member having a base edge, said base edge having at least one perpendicular flange along its length, a measurement edge and a hypotenuse edge, said perpendicular flange and said right-triangular member defining an inside corner;
• a distance measuring device located on either said perpendicular flange or said right-triangular member, said distance measuring device adjacent said inside corner, said distance measuring device configured for measuring the distance said speed square is slid along an outside corner of a piece of dimensional lumber inserted into said inside corner;
• a counter device in communication with said distance measuring device, said counter device preprogrammed to count sequentially for a predetermined distance measured by said distance measuring device;
• and
• a digital display on said right-triangular member, said digital display in communication with said counter device for visually displaying an output of said counter device and thus the distance measured by said distance measuring device;
• the method of use for said rafter angle square whereby wall layouts can be quickly created may be made comprising the following steps:
• (a) providing a piece of dimensional lumber to be marked, said piece of dimensional lumber having an outside corner, an end and a length;
• (b) positioning said outside corner within said inside corner;
• (c) aligning the measurement edge of said rafter angle square with said piece of dimensional lumber end;
• (d) sliding said rafter angle square along said length;
• (e) stopping said sliding process when said counter reaches a predetermined measurement;
• and
• (f) making a mark upon said piece of dimensional level adjacent said measurement edge representing said predetermined measurement.