Cribbing Blocks are durable stackable UHMWPE support blocks designed for cranes, concrete pumps, outriggers, lifting equipment and industrial machinery. A typical reference size is approximately 650 × 150 × 150 mm with a unit weight of about 14.625 kg. The rectangular structure, reusable plastic material and integrated carrying handle make the blocks suitable for increasing support height, multi-layer support arrangements and repeated equipment setup.
Cribbing Blocks are heavy-duty stackable support blocks designed to provide additional height and create practical support arrangements beneath outriggers, stabilizers, lifting equipment, industrial machinery, and other supported loads. Manufactured from durable UHMWPE material, these reusable plastic blocks provide an alternative to conventional timber cribbing for many temporary equipment setup applications.
The product shown features a solid rectangular structure, bright yellow surface, and integrated flexible carrying handle. Multiple blocks can be arranged in layers to create additional support height according to the equipment, supporting surface, and approved operating procedure.
Unlike an outrigger pad, which is primarily used to increase the contact area between an equipment stabilizer and the ground, cribbing blocks are mainly used to increase support height or build a structured support stack. The two product types can also form part of the same equipment support arrangement when the selected system and operating conditions are appropriate.
A typical reference size for the product shown is approximately 650 × 150 × 150 mm. The reference unit weight is approximately 14.625 kg per block.
| Specification | Typical Reference |
|---|---|
| Product type | Stackable equipment cribbing block |
| Reference size | 650 × 150 × 150 mm |
| Reference unit weight | Approximately 14.625 kg |
| Material | UHMWPE |
| Common colors | Yellow, black and other practical colors |
| Handling feature | Integrated flexible carrying handle |
| Installation | Single block or multi-layer support arrangement |
| Main use | Equipment support, outrigger cribbing and temporary height adjustment |
The approximately 650 × 150 × 150 mm format provides a practical balance between block length, support height, handling, transportation, and organized storage.
Other dimensions may also be selected according to the equipment support arrangement, required height, stabilizer dimensions, storage space, handling requirements, and operating conditions.
Cribbing Blocks can be supplied in different rectangular dimensions for different support arrangements.
Typical reference formats may include:
| Reference Size | Typical Application |
|---|---|
| 500 × 150 × 150 mm | Compact equipment support and limited storage areas |
| 600 × 150 × 150 mm | General machinery and outrigger support |
| 650 × 150 × 150 mm | Common stackable support block |
| 600 × 200 × 150 mm | Wider support contact arrangements |
| 650 × 200 × 150 mm | Larger equipment support systems |
Final block dimensions should be selected according to the complete support arrangement. A longer or wider block does not automatically mean that it is suitable for every equipment application.
The complete setup should consider:
Actual product weight may vary according to dimensions, UHMWPE grade, machined surfaces, handle structure, grooves, and other design features.
The primary function of cribbing blocks is to create additional support height through an organized stacking arrangement.
Typical uses include:
The blocks should be arranged according to the equipment, support plan, load position, ground condition, and applicable operating procedure.
For multi-layer systems, alternating the direction of each layer can create a broader cribbing arrangement than stacking every block in the same direction.
One common method of arranging rectangular cribbing blocks is to position one layer in one direction and place the next layer across it.
This type of arrangement can create:
The exact number of blocks and layers should be determined according to the approved equipment setup and operating requirements.
The complete support arrangement should remain stable, level, and properly supported. Blocks should not be positioned across large unsupported voids or arranged so that only a small part of the working surface carries the load.
For additional information about engineered plastic cribbing arrangements, you can review this external resource about plastic cribbing block systems.
The primary material used for these products is ultra-high-molecular-weight polyethylene.
UHMWPE provides a useful combination of:
These material characteristics make Cribbing Blocks suitable for repeated handling, transportation, stacking, outdoor setup, removal, cleaning, and storage.
Unlike steel support components, UHMWPE does not rust. Compared with traditional timber blocks, the plastic material has low water absorption and does not depend on natural wood grain, knots, or moisture condition.
After use around mud, water, sand, or other outdoor surfaces, the blocks can be cleaned before inspection and storage.
Timber has traditionally been used for temporary machinery support because it can be cut into rectangular blocks and stacked in different arrangements.
However, natural timber properties can vary according to:
Manufactured plastic support blocks provide another option where repeated use, consistent dimensions, moisture resistance, and easier cleaning are important.
Typical practical differences include:
The final support material should still be selected according to the complete equipment setup and operating requirements.
The product shown includes a flexible rope-style carrying handle with a separate grip section.
This feature provides a defined handling position when the block needs to be:
A practical carrying handle is useful because support blocks are repeatedly moved during equipment setup and recovery.
Before lifting, operators should inspect:
A damaged handle should be evaluated before being used as a lifting point.
Yellow is a practical color for equipment support products because it is easy to identify around machinery, vehicles, storage areas, and temporary operating zones.
High-visibility colors can help operators:
Black is also commonly used for industrial support products. Other colors may be selected according to the material formulation and project requirements.
Cribbing Blocks can be used in many temporary equipment support and setup applications.
Typical applications include:
The exact support arrangement should always be selected according to the equipment, applied forces, supporting ground, required height, base area, and operating procedure.
Concrete pump trucks may operate in locations where the stabilizer system requires both a suitable base support area and additional height.
Stackable support blocks can form part of an equipment support arrangement when additional height is required beneath the stabilizer system.
Important considerations include:
The support arrangement should not be selected only according to the total vehicle weight.
Different stabilizer positions can experience different forces depending on boom direction, working radius, equipment configuration, and operating conditions.
Crane operations may also require additional support height beneath stabilizers or outriggers.
Possible equipment applications include:
The required support system depends on equipment configuration, stabilizer reaction, supporting ground, pad area, required height, and operating procedure.
Some applications may use one or more layers of blocks together with a larger base outrigger pad.
Other equipment may require a different support system according to the manufacturer and operating requirements.
Cribbing blocks and outrigger pads perform different functions.
An outrigger pad is primarily used to increase the effective ground contact area beneath a stabilizer foot.
A cribbing block is primarily used to create additional support height or form a stacked support structure.
A complete equipment support arrangement may include:
The exact arrangement depends on the selected support system and equipment requirements.
You can also view our complete range of crane outrigger pads for concrete pumps, mobile cranes, lifting equipment, stabilizer systems, and related machinery support applications.
One important reason for using Cribbing Blocks is to increase equipment support height in a controlled layer-by-layer arrangement.
A block with a reference height of approximately 150 mm can add approximately 150 mm of nominal height per layer before considering the complete support geometry.
Additional layers increase total support height, but a higher stack also changes the geometry and stability requirements of the complete system.
The stack should therefore be reviewed for:
A taller support arrangement should not be created simply because additional blocks are available.
The main working surfaces of adjoining blocks should maintain suitable contact.
Partial contact can create a different loading condition from a properly supported surface.
Before applying equipment load, check that:
Large foreign objects trapped between layers can create concentrated contact points and should be removed before equipment loading.
Additional support height may be required where equipment is positioned near changes in grade or where stabilizer extension creates a gap between the equipment and the intended support surface.
Uneven terrain should be evaluated carefully before setup.
Inspect the area for:
The bottom layer should have appropriate support beneath its effective working surface.
Very weak or severely uneven ground may require additional site preparation or another support solution.
Different plastic support blocks may use different surface structures according to the required application.
Possible configurations include:
An interlocking design can help organize adjoining components in a compatible support system.
The final surface structure should be selected according to the block arrangement, supporting pad, equipment foot, and operating requirements.
A major advantage of Cribbing Blocks is their reusable structure.
After equipment operation is completed, the blocks can be:
The consistent rectangular structure makes the blocks suitable for organized storage.
Complete sets can also be grouped according to equipment, vehicle, operating team, or support application.
Repeated-use support products should be inspected before demanding applications.
Check:
A damaged block should be evaluated before being returned to equipment support service.
The supporting ground and complete stack should also be checked when the equipment is repositioned.
Mud, sand, gravel, and other debris can remain on support blocks after outdoor equipment operations.
Cleaning can help:
Before arranging blocks for storage, remove large debris and inspect the main support surfaces.
The rectangular block structure allows multiple units to be arranged efficiently during transportation and storage.
The reference 650 × 150 × 150 mm block has a weight of approximately 14.625 kg, so handling procedures should consider the number of blocks being moved and the actual operating environment.
During storage:
Bright yellow blocks are also easier to identify in mixed equipment storage areas.
Cribbing Blocks provide a practical equipment support solution where additional height, stackable support, and repeated outdoor use are required. Their durable UHMWPE construction, rectangular working surfaces, practical dimensions, integrated carrying handle, and reusable design make them suitable for cranes, concrete pumps, outrigger systems, utility equipment, service trucks, and industrial machinery.
A typical reference size is approximately 650 × 150 × 150 mm with a unit weight of around 14.625 kg. Other rectangular sizes can be selected according to the equipment support arrangement, required height, working surface, handling requirements, storage space, and project conditions. Final block dimensions, material grade, surface structure, number of layers, and installation arrangement should always be selected according to the actual equipment, applied forces, supporting ground, and operating requirements.
Check drawings for full specifications and confirm materials according to service conditions to prevent product defects.
Inspect all key processing steps and fully verify dimensions, holes, grooves and fitting surfaces.
Deburr, chamfer and clean products for easy installation. Ensure uniform quality among batch products.
Choose appropriate packaging solutions based on product features to protect goods from collision, deformation and mixing during transit.
Unlike metal parts, engineering plastic components still require strict control over dimensions, holes, edges, surface, materials and assembly performance for equipment use.
Engineering plastic parts suit friction, guide, support, buffer, anti-corrosion and insulation areas. We supply UHMWPE, POM, PA, PP/PE components for conveyor, food, mining, machinery, chemical and cable systems, with custom OEM service available.
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