Overview
DICA ProStack® Cribbing Timbers are designed to support and elevate static loads, keeping materials and equipment off the ground. Made from a plastic composite of post-consumer and post-industrial recycled waste material (such as milk jugs and laundry detergent bottles) that won't warp, rot, splinter, break or delaminate. Designed to replace wood timbers with superior compression strength lasting decades — impervious to moisture and insects.
Manufactured by DICA, USA-made.
Features
- Five nominal sizes: 4x4, 4x6, 6x6 and 6x8 in 8-ft and 12-ft lengths.
- 500 psi maximum allowable pressure across all models.
- Performs best between -40°F and 120°F air temperature.
- Meets safe setup requirements (unlike traditional box cribbing).
- Made from recycled plastic composite — will not absorb moisture or attract insects.
⚠️ Usage Guidelines
- Fully support timbers in use — do not bridge.
- Avoid applications that create bending moments.
- Not intended to replace outrigger pads or crane mats by themselves.
Applications
Static load support and elevation indoors or outdoors: concrete pump trucks, aerial lifts, digger derricks, boom trucks, self-erecting tower cranes, mobile substations, rock crushers, scaffolding, service trucks, tow trucks, forestry trucks, well drilling trucks, knuckle boom cranes, and carrier-mounted tower cranes. Typical use: medium-sized equipment with reaction forces up to 100,000 lbs.
Available Sizes & Configurations
Five models — see the Technical Specifications tab below for nominal dimensions, length, weight, and maximum allowable pressure per model.
Lead Time
Confirmed at quote.
How to Order
Click "Request a Quote" to get current pricing, availability, and freight to your location. Our team confirms specifications with the manufacturer before order placement.
Have technical questions? Chat with our AI rigging specialist (bottom-right) or email sales@slingcenter.com.
Specifications — All 5 Models
| Model | Nominal Dimension(in x in) | Length(ft) | Weight(lbs) | Max Allowable Pressure(psi) |
|---|---|---|---|---|
| PST-MD-4x4-8 | 4 x 4 | 8 | 41 | 500 |
| PST-MD-4x4-12 | 4 x 4 | 12 | 61 | 500 |
| PST-MD-4x6-12 | 4 x 6 | 12 | 79 | 500 |
| PST-MD-6x6-8 | 6 x 6 | 8 | 79 | 500 |
| PST-MD-6x8-8 | 6 x 8 | 8 | 110 | 500 |
Dimensions are nominal, sourced directly from DICA manufacturer catalog. Performs best between -40°F and 120°F · Made in USA.
Standards & Compliance
Every product we carry is individually marked with Working Load Limit (WLL), manufacturer traceability code, and country of origin. Inspection and mill certificates are available on request — email sales@slingcenter.com with your order number.
Governing Standards
- ASME B30.9 — slings (web, round, wire rope, chain) inspection and use
- ASME B30.26 — rigging hardware (shackles, eye bolts, links, turnbuckles)
- ASME B30.10 — hooks
- OSHA 1910.184 and 1926.251 — general industry and construction sling safety
- WSTDA WS-2 and RS-1 — web and round sling design
- 49 CFR 393.102 to 393.130 — DOT cargo tie-down
- NACM — welded steel chain grade specs
Inspection & Safety
Before every use: visual check for cracks, corrosion, distortion, wear, and illegible markings. Annually (minimum): documented periodic inspection by a trained inspector. Remove from service at first sign of damage. Never repair rigging hardware by welding, heating, or bending.
WARNING: Improper use of rigging can cause death or serious injury. Never exceed the rated Working Load Limit. Apply derating for side-loading, elevated temperature, or chemical exposure. Final application decisions must be made by a Qualified Person per OSHA 1926.32(m).
Chat with our AI rigging specialist
Fastest: click the Ask SlingCenter chat widget in the bottom-right of any page. Our AI specialist is available 24/7 and trained on ASME B30.9, B30.26, OSHA rigging standards, and our full catalog. It can help you size a sling, pick the right shackle, explain inspection criteria, and look up your order.
Prefer to email?
Send to: sales@slingcenter.com
Include:
- What you are lifting (shape, material, fragility)
- Load weight (lb)
- Length / reach needed
- Pick points — smooth lugs, sharp edges, or a hook?
- Environment — indoor, outdoor, heat, saltwater, chemicals?
- Quantity and timeline
- Your phone number if you want a callback
Response: AI chat instant. Email within 1 business day. Urgent orders same-day on standard configurations.
Pricing by quote
This product is configured to order, or pricing varies with current vendor availability. Tell us what you need and we'll send a detailed quote within one business day.
Request a Quote →Or call (305) 767-3223 · email sales@slingcenter.com
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