Omni Cubed Pro Cart AT4

Effortlessly move full stone slabs across challenging terrain, stairs, jobsite obstacles, and finished surfaces with the Pro-Cart AT4 — Omni Cubed’s next evolution of the Pro-Cart line, the premium all-terrain slab cart, redesigned for greater control, improved stability, and cleaner handling during heavy material transport. With a 1,200 lb load capacity, it is designed to help crews take on demanding shop-to-site moves with greater control, efficiency, and jobsite-ready performance.

The AT4 provides the following improvements:

• 1,200 lb carrying capacity
• Quick Release Speed Clamp with 4.5" opening
• A deck height of 16" from deck to ground, allowing 64 inches of clearance for material through standard doorways
• 9" closed-cell polyurethane tires
• Radiused Corners on all extrusions
• Protective end caps
• Grey, non-marking rubber

Premium, professional tools don’t just improve the job, they elevate your image, attract attention, and help create opportunities for bigger and better work.

The Pro-Cart AT4 is designed to overcome the challenges of moving heavy stone over curbs, stairs, gravel, lawns, and other rough terrain. Built as a premium upgrade in the Pro-Cart line, this all-terrain cart helps crews transport large, cumbersome slabs, panels, and countertop pieces while reducing the physical burden on workers.

The AT4 features a 4.5" clamp opening for thicker materials, mitered pieces, and larger edge details, along with an upgraded quick-release clamping mechanism that allows for faster, easier adjustment without removing the clamp from the cart. It also includes 9" tires, EPDM rail padding, silicone end caps, and an adjustable wheelbase designed to improve control and stability across challenging jobsite conditions. The included Folding Kit allows the caster rails to rotate beneath the support beam for easier storage and transport.

Applicable Patents

Includes: One cart with two holding clamps, one folding kit

Product Dimensions: 56-1/2" x 22-1/2" x 22-1/4"

Folded Dimensions: 56-1/2" x 12 x 16"

Product Weight: 69lbs

Package Dimensions: 58" x 15" x 11"

Shipping Weight: Box 1 35lbs, Box 2 40lbs

Load Capacity: 1,200 lb

Clamping Range Max Opening: 114.3 mm (4.5 in.)

Materials: Aluminum - Anodized framework; machined billet aluminum tightening handles; stainless steel clamp shafts; grey non-marking clamping pads; EPDM padding strips on support rail; stainless steel and zinc plated steel hardware; 9" closed-cell polyurethane tires; protective silicone end caps; silicone caps on contact points

Other Specs: 15" from support rail surface to the ground; 45-1/4" between clamp uprights; 56-1/2" length of support rail; 20-1/4" width at outside of tires; total width at height of caster support rails; adjustable wheelbase range