The CribLok™ Cribbing Blocks (Model 12520) are essential components of the ESCO CribLok™ Cribbing System, built for demanding, heavy-duty use. Made from ultra-durable UHMW Polyethylene plastic, these blocks last significantly longer than wood or composite alternatives, resisting brittleness and breakdown over time.

The 21-inch blocks are compact and lighter in weight, making them easier to handle on-site and more efficient to store in service trucks or shop bays. Despite their smaller size, they deliver outstanding strength and durability for tough job site conditions. Both sides feature a pyramid-style interlocking, slip-resistant texture that offers solid, stable, no-void support—even under extreme loads.

CribLok™ Model 12520 is specifically designed for use with the ESCO CribLok™ Cribbing System and must be paired with the ESCO Model 12521 CribLok™ Bottom Plate.

These blocks can be used as part of the CribLok™ System or on their own as a simple, reliable cribbing solution—offering a safe and stable foundation for loads up to 100 tons (200,000 lbs.).

• Pyramid-Style Interlocking Texture: Delivers superior grip and slip resistance for steady, secure support.
• Long-Lasting Durability: Outperforms wood and composites—won’t become brittle or deteriorate over time.
• Indoor/Outdoor Ready: Built to perform in any environment.
• High-Visibility Yellow Handles: Easy-to-replace design for safe and efficient handling.

Specifications:

• Capacity: 100 Tons (200,000 lbs.)
• Material: UHMW Polyethylene plastic
• Weight: 33 lbs. | 15 kg
• Length: 21 in. | 53 cm
• Width: 9 in. | 23 cm
• Height: 5 in. | 12.7 cm
• Color: Black, Yellow Handle
• Temperature Rating: -95°F (-70°C) to +150°F (65°C)
• # of Pieces [26 PCS]: (1)
• Warranty: Limited Lifetime

Available Criblok™ Kits: 8Pc 12533, 10Pc 12536, 12Pc 12537, 14Pc 12531, 20Pc 12538, 26Pc 12532