There are many sizes, shapes and materials used to manufacture shovels and spades that you should consider when selecting the right tool for the task and person using it.
When selecting a shovel, its important to consider ergonomics impacted by:
- handle type
- weight
- length
- blade shape and size
What size and shape of blade should be used?
When choosing blade shape, construction material (steel, plastic or aluminum etc.) and size depend on the materials being shoveled. Factors to consider include hardness, density, and stability; The more loose and light weight the material, the larger the blade size can be used for optimal efficiency.
- Use triangular or round blades with long handles for sand and dry earth.
- Use square blades with short handles for coarse-grained materials such as gravel, coal, or ore.
- Use a smaller blade to minimize the weight of material when lifting.
- Use a blade that has rolled step on the top (it can be triangular, round, or straight at the bottom) for digging in hard earth. These shovels/spades allow the users to apply foot pressure to push the blade into the earth. This action substantially reduces strain on upper body and lower back.