Amateur carpenters who have laid out the cuts in a stair stringer (the zig-zag structural support for the steps) know the queasy feeling that bubbles up at the prospect of this job. There’s the simple ...

The Marc Jacobs marketing team is wild for this one. To advertise its new XL Sack Bag, the fashion label captured a model inexplicably tumbling down stairs while carrying the roomy tote — because ...

One of the great difficulties we encounter with “classic” plan delineation methodologies are ramp and stair projections. It has always been difficult to avoid calculating the ramp’s slope, as well as ...