TOWKING Trailer Jack Block 6" 12000 lb Stackable Leveling Block — 10" Platform, Anti-Tilt Stability

The TOWKING 6" 12000lb Trailer Jack Block is a stackable, anti-tilt support block that raises and stabilizes trailer jacks and tongues with a 12,000 lb capacity.

Designed for campers, travel trailers, fifth-wheels and utility trailers, this lightweight but heavy-duty jack block replaces flimsy wooden or single-purpose pads. Its 10" platform, 2.5" center hole and cone-shaped base pair with most jack feet, wheels and scissor jacks while the eight ribbed anti-tilt geometry resists sinking on soft ground. The system stacks securely so you can adjust height quickly and travel with a compact, travel-ready kit that includes drain holes, an ergonomic grip and a 600D storage bag.

How does this block prevent wobble and tilt under load?

The TOWKING block uses a cone-shaped base and eight support ribs that spread load and bite into uneven or soft terrain, reducing side-to-side play. The anti-tilt geometry keeps the jack foot centered and stable even when ground conditions aren’t ideal.

• 8 ribs for lateral stability and load distribution
• Cone base improves ground contact on mud, gravel, grass
• Locked stacking design prevents unwanted shifts under pressure

Will this fit my trailer jack or scissor jack foot?

The top platform measures 10" across with a 2.5" center hole, built to accept a wide range of jack feet — tongue jacks, wheel jacks and scissor jacks alike. The universal sizing removes the need for custom adapters and works with most fifth-wheel and travel-trailer configurations.

• 10" platform for broad support under feet and pads
• 2.5" hole accommodates standard jack posts and adapters
• Compatible with wheel, tongue, scissor and fifth-wheel jacks

How high can I raise or level my trailer with these blocks?

Each TOWKING block provides a 6" base height and stacks securely to increase clearance quickly. Two blocks stack to 8.6" with the locking features keeping them aligned and safe; you can mix and match for custom heights while retaining full load capacity per block.

• Single block height: 6"
• Stacked height example: two blocks = 8.6" secure height
• Locked stacking for fast, safe adjustments

What features make this set travel-ready and durable?

TOWKING engineered the block with drainage ports, an ergonomic grip for handling, and a heavy-duty 600D carry bag so it’s easy to stow and fast to deploy. The polymer construction resists rot and rust that plague wood or metal alternatives and stands up to repeated campsite use.

• Drain holes prevent water pooling and freeze damage
• Ergonomic grip and quick-strap for easier handling and transport
• Included 600D bag protects blocks and keeps your gear organized

Who is this for: The TOWKING 6" 12000lb Trailer Jack Block is ideal for RV owners, overlanders, and trailer haulers who need a compact, dependable support that works on soft or uneven ground. If you routinely park on campsites, dirt pads, or grass and want a lightweight, weather-resistant alternative to wood or flat pads, this block offers simple stacking, high load capacity and secure anti-tilt performance for safer leveling and towing prep.