Enter the weight supported by the truss (lbs) and the weight of the truss (lbs) into the calculator to determine the Truss Efficiency.

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## Truss Efficiency Formula

The following formula is used to calculate the Truss Efficiency.

**Etruss = WS / WT *100**

- Where Etruss is the Truss Efficiency (%)
- WS is the weight supported by the truss (lbs)
- WT is the weight of the truss (lbs)

## How to Calculate Truss Efficiency?

The following two example problems outline how to calculate the Truss Efficiency.

**Example Problem #1:**

- First, determine the weight supported by the truss (lbs). In this example, the weight supported by the truss (lbs) is given as 500.
- Next, determine the weight of the truss (lbs). For this problem, the weight of the truss (lbs) is given as 200.
- Finally, calculate the Truss Efficiency using the equation above:

Etruss = WS / WT *100

Inserting the values from above and solving the equation:

Etruss = 500 / 200 *100 = 250 (%)

**Example Problem #2: **

Using the same process as above, first define the variables required by the formula. In this case, these values are:

weight supported by the truss (lbs) = 375

weight of the truss (lbs) = 60

Entering these values yields:

Etruss = 375/60 *100 = 62.5 (%)