12″ x 6″ capacity ranges from 2000 lb to 23000 lb per caster across polyurethane, phenolic, cast iron, rubber, and forged steel.

Industrial-standard plates are 2-3/8 by 3-5/8, 3-1/8 by 4-1/8, 4 by 4-1/2, and 4-1/2 by 6-1/4 inches.

Above 1,500 lb per caster, on towlines, AGVs, and shock loads.

Yes. Most stocked SKUs ship same day from Mansfield, TX before 4 PM CT.

Yes. Bulk pricing on 100+ unit orders. Call 844-439-4335.

12 x 6 Casters: The Widest-Tread Wheel in the 12-Inch Family

12" x 6" Casters & Wheels — Widest-Tread Heavy Transfer Size | CasterHQ

The 12″ x 6″ is the widest-tread wheel in the 12-inch family — and width is contact area, which is what spreads extreme load and keeps the tread inside its psi limit. The 6″ tread pushes polyurethane builds toward the top of their range and lets forged steel carry the heaviest transfer loads, all while the 12-inch diameter clears dock plates and floor seams clean.

12″ x 6″ casters and wheels — 0 styles, 2000 lb to 23000 lb capacity. Industrial caster wheel dimensions of 12″ x 6″ for material handling, equipment, carts, and OEM applications. Polyurethane, phenolic, cast iron, rubber, and forged steel wheels in plate, stem, kingpinless, and dual-wheel mounts. Same-day ship from Mansfield, TX.

0 styles 2000 - 23000 lb Ships same day 844-439-4335

Closest Wheel Sizes (cross-shop)

All Wheel Sizes

Browse the full CasterHQ wheel-size catalog — 35 industry-standard sizes from 2" up to 16" diameter.

Industries We Serve

Caster solutions for these industries (across all wheel sizes, including 12″ x 6″). Tap an industry to browse industry-specific casters and wheels.

Automotive

Aerospace

Medical

Food Service

AGV / 24-7

Manufacturing

Ground Support

Material Handling

What Is a 12″ x 6″ Caster?

A 12″ x 6″ caster has a wheel diameter and tread width of 12″ x 6″. It serves industrial material handling, equipment carts, OEM applications, and replacement-wheel needs across capacity from 2000 lb to 23000 lb per caster (depending on wheel material). Available in polyurethane, phenolic, cast iron, rubber, and forged steel with plate, stem, kingpinless, and dual-wheel mounts.

Wheel size: 12″ x 6″
Capacity: 2000 – 23000 lb per caster
Materials: Polyurethane, phenolic, cast iron, rubber, forged steel
Mounts: Plate, stem, kingpinless, dual wheel
Lead time: Same-day ship on stocked SKUs

Jordan Wilson

President & Owner, CasterHQ · 15+ years caster engineering

Last reviewed: April 27, 2026 · Reviewed by CasterHQ Engineering · Trusted by 50,000+ businesses

012″ x 6″ styles in stock

2000 - 23000 lbCapacity range

5+Wheel materials

Same DayShip cutoff 4 PM CT

50,000+Businesses served

How to Choose the Right 12″ x 6″ Caster

Pick a 12″ x 6″ caster in 5 steps: calculate load per caster, match wheel material to your floor, choose mount type, add features, then verify dimensions match your equipment.

Step	Decision	Why It Matters
1 · Capacity	Total weight ÷ casters × 1.25 (or 1.5 for towlines)	12″ x 6″ capacity ranges 2000 - 23000 lb. Pick wheel material to match the per-caster load.
2 · Material	Polyurethane (smooth), phenolic (heat), cast iron (debris), rubber (outdoor), forged steel (extreme)	Wrong material adds 30-50% rolling resistance and damages floors.
3 · Mount	Plate (most common), stem (retrofit), kingpinless (above 1,500 lb)	Plate is industrial standard. Kingpinless required above 1,500 lb on towlines.
4 · Features	Brake, total lock, ergonomic, swivel-lock	Brake for slope. Ergo for > 8 push-hours/day. Total lock for stationary work.
5 · Plate match	Verify bolt pattern matches existing equipment	Match plate dimensions before ordering. Common plate sizes: 2-3/8×3-5/8, 3-1/8×4-1/8, 4×4-1/2, 4-1/2×6-1/4.

12″ x 6″ Wheel Material Comparison

Material	Capacity (at 12″ x 6″)	Best For	Avoid
Polyurethane	2000 – 16099 lb	Smooth concrete · floor protection · medium duty	Heat > 180°F · debris floors
Phenolic	3000 – 23000 lb	Heat up to 450°F · chemicals · debris	Floor protection on epoxy/finished surfaces
Cast Iron / Semi-Steel	2400 – 13800 lb	Debris-heavy floors · machine shops · noise OK	Smooth-floor protection · indoor finished
Rubber on Cast Iron	1600 – 9200 lb	Shock absorption · noise reduction · medium duty	Heavy industrial loads
Forged Steel	13800 – 23000 lb	Extreme duty · towlines · heavy machinery bases	Floor protection · noise-sensitive areas

Engineer Tip: 12″ x 6″ Selection Mistakes We See Often

Polyurethane on machine-shop floors. Poly slices on metal shavings. Use phenolic or cast iron in fab shops, machining centers, and any floor with chips and debris.
Wrong plate size for the mount. Always verify your equipment's bolt-hole pattern before ordering.
Kingpin caster above 1,500 lb on towlines. Towlines fatigue kingpins fast. Always spec kingpinless above 1,500 lb per caster on towed applications.
Skipping ergonomic wheel for high push-hour use. If operators push 8+ hours/day, Ergo-Glide reduces push force 30-60%. OSHA and injury risk go down.

Based on CasterHQ engineering field data from 50,000+ caster installations.

12″ x 6″ Caster FAQs

What is a 12″ x 6″ caster?

A 12″ x 6″ caster has a wheel diameter and tread width of 12″ x 6″. Capacity ranges from 2000 lb to 23000 lb per caster depending on wheel material.

What load capacity does a 12″ x 6″ caster have?

12″ x 6″ capacity ranges from 2000 lb to 23000 lb per caster. Polyurethane, phenolic, cast iron, rubber, and forged steel cover the full range. Always use a 25% safety margin (50% on towlines).

What plate size do 12″ x 6″ casters use?

Plate size varies by series. The four industrial-standard plates are 2-3/8" × 3-5/8", 3-1/8" × 4-1/8", 4" × 4-1/2" (most common), and 4-1/2" × 6-1/4" (super duty). Always verify your equipment's bolt-hole pattern before ordering.

Polyurethane or phenolic for 12″ x 6″?

Polyurethane on smooth concrete and epoxy floors — best floor protection and rolling efficiency. Phenolic on debris-heavy or high-heat floors (machine shops, ovens, bakeries) — handles up to 450°F.

When kingpinless 12″ x 6″?

Above 1,500 lb per caster, on towlines, on AGVs, and any shock-load application. Kingpinless extends swivel life 3-5×.

Same-day shipping on 12″ x 6″?

Yes. Most stocked 12″ x 6″ SKUs ship same day from Mansfield, TX if ordered before 4 PM CT, Monday through Friday.

OEM bulk pricing?

Yes. We supply OEMs across automotive, aerospace, food, medical, and AGV with bulk pricing on 100+ unit orders. Call 844-439-4335 or use the request a quote form.

Continue your build · related collections

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Request a Quote Call 844-439-4335

BHP: 1-3/4″ × 2-7/8″, slotted to 3″

BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″

BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)

BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"

(3″ Wide Casters), Industry-Standard

BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"

BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters

12" x 6" Casters & Wheels — Widest-Tread Heavy Transfer Size | CasterHQ

Closest Wheel Sizes (cross-shop)

12" x 5"

12" x 4"

10" x 5"

10" x 4"

12" x 3"

10" x 3"

All Wheel Sizes

Industries We Serve

What Is a 12″ x 6″ Caster?

How to Choose the Right 12″ x 6″ Caster

12″ x 6″ Wheel Material Comparison

12″ x 6″ Caster FAQs

BHP: 1-3/4″ × 2-7/8″, slotted to 3″

BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″

BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)

BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"

(3″ Wide Casters), Industry-Standard

BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"

BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters

12" x 6" Casters & Wheels — Widest-Tread Heavy Transfer Size | CasterHQ

Closest Wheel Sizes (cross-shop)

12" x 5"

12" x 4"

10" x 5"

10" x 4"

12" x 3"

10" x 3"

All Wheel Sizes

Industries We Serve

What Is a 12″ x 6″ Caster?

How to Choose the Right 12″ x 6″ Caster

12″ x 6″ Wheel Material Comparison

12″ x 6″ Caster FAQs

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