A tile saw gauge has a receiver, an extension arm, and a slidable gauge. In one embodiment, the slidable gauge has one or more protrusions for fixing various lengths. The receiver may be permanently attached to a tile saw, such as by welding, or may removably attachable, such as by using screws, a bolt and nut, or similar mechanism. The tile saw gauge may be retrofitted on saws in the art, allowing tile saws in the market to make consistent cuts on larger tiles or tile lengths.

A joinery jig comprising a body and a plurality of spacers, wherein the body defines (i) a first straight slot, a second straight slot and an angled slot, wherein the angled slot connects the first straight slot to the second straight slot to define an elongate angled channel; (ii) a plurality of datum alignment elements aligned with the angled slot, wherein each datum alignment element is spaced from a reference point of the angled slot by a pre-determined distance; and (iii) at least one spacer receiving aperture; and wherein the number of spacers is equal to the number of datum alignment elements and each spacer includes a body having a dimension which is equal to the pre-determined distance defined between a respective one of the datum alignment elements and the reference point of the angled slot; and wherein each spacer includes a body portion which fits within the or one of the spacer receiving apertures.

A joinery jig comprising a body and a plurality of spacers, wherein the body defines (i) a first straight slot, a second straight slot and an angled slot, wherein the angled slot connects the first straight slot to the second straight slot to define an elongate angled channel; (ii) a plurality of datum alignment elements aligned with the angled slot, wherein each datum alignment element is spaced from a reference point of the angled slot by a pre-determined distance; and (iii) at least one spacer receiving aperture; and wherein the number of spacers is equal to the number of datum alignment elements and each spacer includes a body having a dimension which is equal to the pre-determined distance defined between a respective one of the datum alignment elements and the reference point of the angled slot; and wherein each spacer includes a body portion which fits within the or one of the spacer receiving apertures.

A dual speed square has a first triangle member, a second triangle member, and an intermediate connector. The first triangle member and the second triangle member are each laterally and hingedly connected to the intermediate connector opposite each other through a first hinge joint and a second hinge joint, respectively. The triangle members rotate respective to the intermediate connector between a deployed configuration and a stored configuration. In the deployed configuration, the triangle members may be placed on opposite sides of a workpiece in order to identically mark out the opposite sides of the workpiece. In the stored configuration, the triangle members are positioned adjacent to each other, occupying a smaller space than in the deployed configuration for easier transport and storage.

A dual speed square has a first triangle member, a second triangle member, and an intermediate connector. The first triangle member and the second triangle member are each laterally and hingedly connected to the intermediate connector opposite each other through a first hinge joint and a second hinge joint, respectively. The triangle members rotate respective to the intermediate connector between a deployed configuration and a stored configuration. In the deployed configuration, the triangle members may be placed on opposite sides of a workpiece in order to identically mark out the opposite sides of the workpiece. In the stored configuration, the triangle members are positioned adjacent to each other, occupying a smaller space than in the deployed configuration for easier transport and storage.

A jig assembly for marking a cabinet with hole positions that are needed to install hardware. The jig assembly utilizes a reference plate. At least one matrix of holes is formed through the reference plate. The holes are used to make markings at different positions and distances. The holes are preferably identified with scale indicia that provide visual indications as to the positions of each of the holes. Arms are attached to the reference plate with pivot connections. Marking holes are disposed through the arms. The arms can rotate and extend from the reference plate in opposite directions. A top plate is positioned across the top edge of the reference plate. The top plate creates a guide. A side plate is positioned across a side edge of the reference plate. The side plate creates a second guide that intersects the top plate at a perpendicular.

A floor joist square is provided. A floor joist square for facilitating marking a straight-line along a face of an engineered I-shaped floor joist, the floor joist square comprises a blade member, a tongue member, and a handle. The blade member is flat and rectangular in shape and comprising a substantially thin first lip extending out from a first end of the blade member and a substantially thin second lip extending out from a second end of the blade member. The tongue member is flat and rectangular in shape and is perpendicularly affixed to the blade member at an end of the tongue member above the second lip. The handle is affixed to the blade member and the tongue member such that the handle, the blade member, and the tongue member form a triangular shape.

A floor joist square is provided. A floor joist square for facilitating marking a straight-line along a face of an engineered I-shaped floor joist, the floor joist square comprises a blade member, a tongue member, and a handle. The blade member is flat and rectangular in shape and comprising a substantially thin first lip extending out from a first end of the blade member and a substantially thin second lip extending out from a second end of the blade member. The tongue member is flat and rectangular in shape and is perpendicularly affixed to the blade member at an end of the tongue member above the second lip. The handle is affixed to the blade member and the tongue member such that the handle, the blade member, and the tongue member form a triangular shape.

A roof square for marking rafters comprising a right angle triangular body with a marking blade pivotally mounted adjacent the right angle. Either side of the square adjacent the right angle is held against the stock to be marked, and the blade used to mark either a plumb cut or a foot cut. The blade retracts to allow marks to be made at a measured depth. The tool can also be used as a conventional square to make 90 and 45 degree marks.

A roof square for marking rafters comprising a right angle triangular body with a marking blade pivotally mounted adjacent the right angle. Either side of the square adjacent the right angle is held against the stock to be marked, and the blade used to mark either a plumb cut or a foot cut. The blade retracts to allow marks to be made at a measured depth. The tool can also be used as a conventional square to make 90 and 45 degree marks.