© Infrastructure Health & Safety Association (IHSA)
36 • Institute for Work & Health (IWH)
Modified Participant Numeracy Use Excerpt
NEW SECTION: Calculating Load Weight
The single most important precaution before attempting a lift is to determine the
weight of the load.
Methods in Determining Load Weight
• Calculate from material weight
• Refer to drawings
• Refer to shipping documents
• Refer to equipment catalogues
• Look for painted, cast or welded posting on load
• Weigh it using weigh scales or using weighing device on crane
For Load Weight Calculations, there are 3 types of questions:
• Calculating Weight Based on Volume
• Calculating Weight Based on Area
• Calculating Weight Based on Length
For each type of question, you'll refer to a separate table from M035
Load Weight Question Type Table
Volume 1.2
Area 1.3
Length 1.1
Steps to Solve:
Step 1: Complete the calculation using either Volume, Area, or Length
Step 2: Locate the unit weight in the correct table
Step 3: Calculate the weight
Step 4: Complete any required conversions
Added:
new
explanation
content
for
question
calculation
types
(area,
volume,
length)
