Abstract: A wrap around type tool with flat, right angled, rectangular blades, one perpendicularly aligned with the other, designed for bordering adjacent sides of a work piece. Each blade having perpendicularly paralleling outer straight edges, a centrally located slot providing for perpendicularly paralleling inner straight edges. Said edges, selectively chosen and in conjunction with a measuring tape, aiding the user in marking delineations for the placement of components in the fabrication of a buildings framework. The afore mentioned measuring tape is a locking type, and placed in a fixed position, on the surface of the working place, contiguous to the work piece. In placing the inside face of the horizontally oriented blade atop a work piece and the vertically oriented blade adjusted to fitting the blades end stay lightly touching the measuring tape. Moving in a comfortable direction, the user proceeds along the work piece, marking component placement location, component size and description.