1. **State the problem:** You need to transfer the foundation wall dimensions accurately onto the footing using a laser level, given that profile boards are set and the strip footing is ready. 2. **Tools and setup:** Use a laser level to project a horizontal laser line across the footing area. Ensure the laser level is properly calibrated and stable. 3. **Marking the reference line:** Align the laser level so that the laser line hits the profile boards at the exact height corresponding to the foundation wall's base. 4. **Transferring dimensions:** Move along the footing, marking points where the laser line intersects the footing edges or surface. These marks correspond to the foundation wall dimensions. 5. **Check measurements:** Use a tape measure to verify distances between marks match the foundation wall dimensions from the plans. 6. **Finalizing:** Connect the marks with a chalk line or pencil to outline the foundation wall on the footing. This procedure ensures precise transfer of foundation wall dimensions onto the footing using a laser level, leveraging the fixed profile boards as reference points.