Bluff ManufacturingBluff Manufacturing

Bluff Manufacturing, Inc.



Best Price, Best Service

As a Master Distributor, Bluff Manufacturing can provide the best pricing for Turtle Plastic Cribbing.  

Engineered Plastic Benefits

  • 100% recycled plastic construction for added durability*
  • Unmatched strength - stronger than oak
  • Resistant to gas, oil, chemicals, even blood!!
  • 50 year warranty against splitting, rotting, absorption, termites and mold
  • Lightweight and splinter free
  • Available in black and HI-VIS yellow
  • Repeatability
  • Unique pyramid construction helps lock in cribbing and secure the crib
  • Comes in a variety of sizes.  Black is standard, but safety yellow is optional.


Cribbing – Technical Specs

  • Active versus Static Cribbing
    Active cribbing is used when a person is working near the cribbing. Static (or passive) cribbing is used to keep material off the ground to allow a forklift to operate.
  • Design Strength
    Crossgrain bearing design strength for traditional wood cribbing varies by wood species and quality (evenness of grain, presence of knots, etc.) from 200 PSI to 1000PSI. Plastic cribbing can sustain up to 700-1200 PSI creating a safer, longer-lasting and more durable cribbing base.
  • TOM (technical operations manual) 
    Available upon request.

For test data and MSDS information, visit

Army Corps of Engineers

The Army Corps of Engineers is the leading source of cribbing information and recommends the following cribbing guidelines.

A. The bottom layer should be solid to spread the load, especially on soil or asphalt paving.
B. Limit height to 3 times width (shortest width for non-square cribs).
C. Overlap corner by 4 inches to assure slow crush-type failure.

Source: U.S. Army Corps of Engineers



2 Item(s)

per page
Model Number Product Name
44PL-18 Pyramid Locking Lincoln Log*-L (black)
67SC-24 Super Crib® Cribbing