The industry standard density for carbon steel is 0.2833 lbs/in³ (or 490 lbs/ft³). This is the value used by AISC, NISD, and most detailing software like Tekla Structures.
Why Use a Takeoff List?
Estimating plate requires more than just one calculation. By building a list above, you can:
Sum Total Tonnage: Get the exact weight for a shipping manifest or steel order.
Compare Materials: Switch to "Stainless" for specific items and see how it impacts the weight.
Avoid Calculator Errors: Stop manually adding numbers on a notepad. Let the tool track the total.