Floor joist square

1. A floor joist square for facilitating marking a straight line along a face of an engineered I-shaped floor joist, the floor joist square comprising:

a blade member, the blade member being flat and rectangular in shape and comprising a substantially thin first lip extending out from a first end of said blade member and a substantially thin second lip extending out from a second end of said blade member;

a tongue member, the tongue member being flat and rectangular in shape and is perpendicularly affixed to said blade member at an end of said tongue member above said second lip; and

a handle affixed to said blade member and said tongue member such that said handle, said blade member and said tongue member form a triangular shape, wherein a thickness of said blade member and a thickness of said tongue member is equivalent to a recessed thickness of a web from a top of a first flange of said engineered I-shaped floor joist and a second flange of said engineered I-shaped floor joist and wherein said floor joist square is fabricated via a 3D printer.

2. The floor joist square of claim 1 , wherein said blade member further comprises a plurality of hatch marks along a surface of said blade member designating increments of spatial distance for measurement.

3. The floor joist square of claim 1 , wherein said tongue member further comprises a plurality of hatch marks along a surface of said tongue member designating increments of spatial distance for measurement.

4. The floor joist square of claim 1 , wherein said 3D printed floor joist square is of unitary construction.

5. A method of applying the floor joist square of claim 1 , for marking said engineered I-shaped floor joist in preparation for cutting, the method comprising:

inserting the floor joist square onto said engineered I-shaped floor joist such that said tongue member lies flat against a second flange of said engineered I-shaped floor joist, said blade member lies flat against a web of said engineered I-shaped floor joist, said first lip lies flat on top of a first flange of said engineered I-shaped floor joist and said second lip lies flat on top of said second flange of said engineered I-shaped floor joist;

holding said floor joist square in place;

marking said second flange along an edge of said second lip, said web along an edge of said blade member and said first flange along an edge of said first lip in one continuous motion.

6. The method of claim 5 , wherein said floor joist square is inserted onto said engineered I-shaped floor joist by gripping said handle and maneuvering said floor joist into place.

7. The method of claim 5 , wherein said floor joist square is held in place by gripping said handle.

8. A floor joist square for facilitating marking a straight line along a face of an engineered I-shaped floor joist, the floor joist square comprising:

a blade member, the blade member being flat and rectangular in shape and comprising a substantially thin first lip extending out from a first end of said blade member and a substantially thin second lip extending out from a second end of said blade member;

a tongue member, the tongue member being flat and rectangular in shape and is perpendicularly affixed to said blade member at an end of said tongue member above said second lip; and

a handle affixed to said blade member and said tongue member such that said handle, said blade member and said tongue member form a triangular shape, wherein said floor joist square is fabricated via a 3D printer and wherein said blade member, said tongue member and said handle are 3D printed individually and assembled into said floor joist square.

9. The floor joist square of claim 8 , wherein said blade member further comprises a plurality of hatch marks along a surface of said blade member designating increments of spatial distance for measurement.

10. The floor joist square of claim 8 , wherein said tongue member further comprises a plurality of hatch marks along a surface of said tongue member designating increments of spatial distance for measurement.

11. The floor joist square of claim 8 , wherein said 3D printed floor joist square is of unitary construction.