We're sorry, but OSHAcademy doesn't work properly without JavaScript enabled. Please turn on JavaScript or install a browser that supports Javascript.

619 Materials Handling Safety
Skip to main content

Bagged Materials

Bags and bundles should be stacked in interlocking rows to remain secure. Bagged material should be stacked by stepping back the layers and cross-keying the bags at least every ten layers. To remove bags from the stack, start from the top row first.

Bags stacked on pallets
It's important to cross-key layers of bagged materials to improve stability.

Bulk Materials

Ensure entry to bulk storage locations, such as silos, hoppers, tanks, or bins (which are also classified as confined spaces) complies with OSHA requirements and local operating procedures.

Lumber

Stack lumber on level and solidly supported sills so that the stacks are stable. Do not pile lumber more than 16 feet high.

Bricks and Masonry Blocks

Stack bricks and masonry blocks on level and solid surfaces.

  • Bricks: Stack bricks no more than 7 feet high. Step back a loose brick stack at least 2 inches for every foot of height above 4 feet. Stack packaged brick no more than three units high.
  • Masonry Blocks: Step back masonry blocks one-half block per tier above the 6-foot level.

Cement and Lime

Handling or storing cement or lime requires a job hazard analysis (JHA). Lime requires careful storage and handling procedures. Store unslaked lime in a dry area and, because it presents a fire hazard, separate it from other materials.

Knowledge Check Choose the best answer for the question.

4-7. What is the requirement for stacking bagged material so that they remain secure?