Truck Safe Strapless A-Frame
Engineered Strapless Slab Transport for Trucks
“The Truck Safe Strapless A-Frame (SSH SL TAF-30) is a fully integrated mechanical compression slab-transport system that eliminates straps as a primary load-securing method while delivering controlled, repeatable restraint for truck hauling applications.”
The first safe way of handling and holding stone slabs.
The Strapless SAFE Truck A-Frame with Rocklock™ and Wedgelock™ is based on the proven SAFE Truck A-Frame and incorporates a completely mechanical strapless slab-securement system designed to eliminate conventional overthe-top transport straps. Strapless means no straps are required to hold the A-frame with its slab load to the truck, and no straps are required to hold the slabs to the A-frame.
Developed by an engineer with 30+ years of industry experience solving slab handling challenges.
The integrated Collision Bar provides forward protection; the patented RockLock™ stabilizes slabs during loading and unloading; and the WedgelockT"' system mechanically secures the slab load for transportation.
Each side of the A-frame uses one rotating RockLock™ slotted arm together with two heavy-duty vertical steel holding bars equipped with gravity-activated aluminum Wedgelocks™. The vertical bars connect the A-frame base to the overhead RockLock™ arm, creating two independent mechanical securement points on each side.
Engineering Overview: Truck Safe Strapless A-Frame Installation & Load Control
The SSH SL TAF-30 allows operators transitioning from traditional methods to continue using straps as a secondary backup while building confidence in strapless hauling.
But the system is engineered to haul without straps as the primary restraint.
Meet the Truck Safe Strapless A-Frame
Integrated Mechanical Compression for Controlled Slab Transport
Safety Features
✅ Strapless mechanical slab securement eliminates conventional over-the-top transport straps.
✅ Patented Rocklock™ stabilizes slabs against outward tipping during loading and unloading.
✅ Two independent vertical holding bars with Wedgelocks™ secure each side of the A-frame.
✅ Gravity-activated Wedgelock™ moves downward and inward until its protected contact surface engages the outside slab.
✅ Mechanical locking screw secures each Wedgelock™ after engagement and prevents movement during transportation.
✅ Multiple base holes and matching overhead Rocklock™ slots accommodate different slab-load thicknesses.
✅ Wedgelocks™ remain attached to their holding bars, eliminating loose components and assembly time.
✅ Integrated Collision Bar provides additional forward protection between the slab load and truck cab.
✅ Permanent undermount and removable top-mount A-frame configurations are available.
✅ Completely mechanical operation - no electrical, hydraulic or pneumatic power required.
✅ Each vertical holding bar weighs approximately 20 lb; each aluminum WedgeLock™ weighs approximately 10 lb.
How the Truck Safe Strapless A-Frame Controls Slab Stability
After the last slab is loaded, the RockLock™ arm remains in the active position to stabilize the load while the strapless Wedgelock™ securement system is engaged.
Each side of the A-frame is secured by two heavy-duty vertical holding bars equipped with Wedgelocks TM. The bars locate into corresponding positions in the A-frame base and overhead Rocklock™ arm.
The Wedgelock™ remains attached to its holding bar and is simply released from its stowed position. Gravity automatically moves the Wedgelock™ downward and inward until its protected contact surface engages the outside slab. A mechanical locking screw then secures the Wedgelock™ in position for transportation.
There are no Wedgelock™ components to assemble or remove. Each holding bar/Wedgelock™ assembly can typically be activated in approximately 45 seconds to 1 minute, with the complete four-point securement process taking approximately 4-6 minutes, including final safety checks.
Applications
Stone distributors, stone importers, fabrication facilities, countertop companies and slab-delivery operations transporting
all natural and engineered stones for countertops.
Engineering Specifications & Performance Data
Model: SSH SL TAF-30
Application: Truck slab transport system
Model
A-Frame capacity
Approx. Slab Cacacity
Maximum Slab Height
Length
Width
Height
Approx. A-Frame Weight
Construction
Finish
Loading/Unloading Stabilization
Transport Securement
Securement Per Side
Vertical Holding Bar Weight
Wedgelock™ Weight
Wedgelock™ Construction
WedgeLock™ Length
Wedgelock™ Contact Face Material
Guide Slot Angle
Guide Slot Length
Guide Slot Width
WedgeLock™ Secondary Lock
Additional Protection
Permanent Mounting
Removable Mounting
Power Reauired
SSH SL T AF-30
36,000 lb per A-frame
30 slabs
81 in
132 in
72in
84in
1,300 lb
Heavy-duty structural steel
Powder coated
Patented Rocklock™
Strapless Rocklock™ / WedgeLock™ mechanical system
1 Rocklock™ arm+ 2 vertical steel bars+ 2 WedgeLocks™
Approx. 20 lb each
Approx. 10 lb each
Aluminum
Approx. 20 in
UV HOPE, 50-60 Shore
12° from vertical
16.5 in
9/16 in
Mechanical locking screw
Integrated Collision Bar
Through truck bed to heavy-duty structural tubing below
Top-mounted using heavy-duty chain ratchet binders
connected to welded D-rings
None
Why Strap-Only Slab Hauling Fails
Why Strap-Only Slab Hauling Fails
On most truck A-frames, the only thing keeping stone in place is a web of straps and a hope that they stay tight.
But tension is not a fixed control system. As the truck moves, everything that touches the load is trying to loosen, stretch, or shift.
Over a typical day, these real-world conditions eat away at strap control:
❌ Repeated braking and acceleration that make straps stretch and rebound
❌ One-sided loading or unloading that leaves weight stacked on a single side
❌ Potholes, curbs, and driveway transitions that twist the frame and rock the slabs
❌ Strap wear fails in transit
❌ Strap freezing causes delays and schedule changes
