How do you lift and brace a 15-ton historic structure, then roll the assembly along an I-beam track to its new foundation? Very carefully. Read more
There is a structural difference between full-height jacks at window openings vs. split jacks that fit around the rough sill. Read more
Profit can be looked at in two ways: in dollars (gross profit and net profit), or as a percentage of sales (gross margin and net margin). Read more