This is where the becomes indispensable. Often referred to simply as the estimator’s bible , this manual bridges the gap between theoretical engineering and real-world shop floor reality.
If you want, I can:
First, determine your "Base Productivity Factor." If your crew is highly experienced and working in an open, ground-level shop, your multiplier might be 1.0. If you are working in a congested refinery at 50 feet in the air, you may need to apply a multiplier of 1.4 or higher to the manual's base hours. This is where the becomes indispensable