In this image the middle worker is using a jig to drill a screw hole exactly aligned with a red chalk-snapped vertical line marked on the black paper. The use of a jig with pre-drilled holes is critical to ensuring that the screws stay lined up vertically.  Photo 8 of 13 in Dwell Home Venice: Part 17

Dwell Home Venice: Part 17

8 of 13

In this image the middle worker is using a jig to drill a screw hole exactly aligned with a red chalk-snapped vertical line marked on the black paper. The use of a jig with pre-drilled holes is critical to ensuring that the screws stay lined up vertically.