How do I match my existing caster plate?

Measure plate dimensions and bolt-hole spacing. Then choose the corresponding plate-size subcategory on this page.

Which wheel material should I choose?

Polyurethane for most industrial floors, rubber for quiet rolling, phenolic for high loads, nylon for wet environments.

Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.

Plate Mount Casters

Quick Specs — Plate Mount Casters

Load Range	75 to 17,500 lbs per caster
Plate Sizes	1-5/8″×2-1/2″ up to 4-1/2″×6-1/4″
Mount Style	Bolt-on top plate — most secure attachment method for industrial use
Wheel Materials	Polyurethane, Phenolic, Rubber, Nylon, Cast Iron, Steel
Configurations	Swivel, Rigid, Swivel w/ Brake
Best For	Carts, dollies, machinery, workbenches — any bolt-on application

Plate Mount Casters

Choose the correct plate caster by matching the existing top plate footprint, then selecting a wheel material and duty rating optimized for your application. Below are the most common plate sizes used across carts, fixtures, fabrication equipment, racks, and OEM builds.

Most Popular Plate Sizes

These four footprints cover the majority of industrial and institutional caster replacements.

2-3/8 x 3-5/8 plate caster top plate footprint

2-3/8" × 3-5/8" POPULAR · Institutional & light-duty

3-1/8 x 4-1/8 plate caster top plate footprint

3-1/8" × 4-1/8" POPULAR · Medium-duty carts & fixtures

4-1/2 x 6-1/4 heavy-duty top plate for wide casters

4-1/2" × 6-1/4" (3" Wide) POPULAR · Heavy-duty & tow-line builds

Shop by Wheel Material

Polyurethane Rubber Phenolic Nylon Steel / Iron

Shop by Duty Rating

Light Duty Medium Duty Heavy Duty Kingpinless / Extreme Duty

Institutional / Light Duty Plate Sizes

Medium Duty Plate Sizes

Industrial / Universal Plate Sizes

Heavy Duty & Extreme Duty Plate Sizes

How to Choose the Correct Plate Size

Match the existing plate footprint first — overall size + bolt-hole spacing.
Check clearance for swivel radius, brakes, and overall height.
Select wheel material for noise, floor protection, and chemicals.
Load rating must exceed per-caster dynamic load with safety factor.

From Our Engineers: Plate Caster Selection Tips

Plate casters are the most versatile and secure mounting option we sell. After helping thousands of customers select the right plate caster, here are the mistakes we see most often:

Measure your existing bolt pattern first — The #1 reason for returns is wrong plate size. Measure the bolt hole spacing (not the outside plate dimensions). Our How to Measure Threaded Stem Casters shows you exactly how.
Plate size correlates to load capacity — Don’t try to fit a small plate on heavy equipment. A 2-3/8″×3-5/8″ plate tops out around 300 lbs per caster. For loads over 1,000 lbs, you need the 4″×4-1/2″ or larger.
Plate mount > stem mount for heavy loads — Four bolts distribute force across the mounting surface. Stem casters concentrate load at a single point. For anything over 500 lbs per caster, always go plate mount. See our Types of Stem Casters Guide.
Match swivel-to-rigid ratio to your use case — Standard 4-caster carts: 2 swivel + 2 rigid. If you need full omnidirectional movement (like in tight aisles), go all swivel but add brakes to at least 2.

Based on CasterHQ plate caster sales & support data (2019–2026).

Frequently Asked Questions

What is the most common plate caster size?

4" × 4-1/2" is the universal industrial footprint used on thousands of carts, racks, and equipment bases.

How do I match my existing plate?

Measure plate width × length and measure the bolt-hole pattern. Match both to the correct subcategory above.

What wheel material should I choose?

Polyurethane for most industrial floors, rubber for quiet operation, phenolic for heavy static loads, nylon for wet areas.

8" x 2" Mold-On Rubber Swivel Caster – 600 lb | 4" x 4-1/2" Top Plate | CasterHQ from $36.00 USD $41.00 USD

Diameter 8"

Capacity 600 lbs

Wheel Rubber

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 9-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Core Iron

Temp Range -40°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

5" x 2" Semi-Steel Swivel Caster – 1000 lb | 4" x 4-1/2" Top Plate | CasterHQ from $36.00 USD

Diameter 5"

Capacity 1000 lbs

Wheel Cast Iron

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 6-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Temp Range -45°F to 600°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

5" x 2" Phenolic Swivel Caster – 1,000 lb | 4" x 4-1/2" Top Plate | CasterHQ from $28.00 USD

Diameter 5"

Capacity 1000 lbs

Wheel Phenolic

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 7-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Temp Range -50°F to 250°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

5" x 2" Semi-Steel Rigid Caster 4" x 4-1/2" Top Plate – 1000 lb | CasterHQ from $31.00 USD

Diameter 5"

Capacity 1000 lbs

Wheel Cast Iron

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 6-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Temp Range -45°F to 600°F

Rig Type Rigid

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

8" x 2" Semi-Steel Swivel Caster – 1250 lb | 4" x 4-1/2" Top Plate | CasterHQ from $46.00 USD

Diameter 8"

Capacity 1250 lbs

Wheel Cast Iron

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 9-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Temp Range -45°F to 600°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

6" x 2" Mold-On Rubber Swivel Caster – 550 lb | 4" x 4-1/2" Top Plate | CasterHQ from $38.00 USD

Diameter 6"

Capacity 550 lbs

Wheel Rubber

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 7-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Core Iron

Temp Range -40°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

5" x 2" Red Polyurethane Swivel Caster with Brake – 4000 lb | CasterHQ from $144.00 USD

Diameter 5"

Capacity 0 lbs

Wheel Polyurethane

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 6-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Core Iron

Temp Range -50°F to 180°F

Rig Type Rigid with Brake

Brake Side Lock Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

5" x 2" Red Polyurethane Swivel & Rigid Caster – 4000 lb | CasterHQ from $144.00 USD

Diameter 5"

Capacity 0 lbs

Wheel Polyurethane

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 6-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Core Iron

Temp Range -50°F to 180°F

Rig Type Rigid

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

5" x 2" Mold-On Rubber Swivel Caster – 450 lb | 4" x 4-1/2" Plate | CasterHQ from $25.00 USD

Diameter 5"

Capacity 450 lbs

Wheel Rubber

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 6-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Core Iron

Temp Range -40°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

6" x 2" Semi-Steel Rigid Caster – 1200 lb | 4" x 4-1/2" Top Plate | CasterHQ from $40.00 USD

Diameter 6"

Capacity 1200 lbs

Wheel Cast Iron

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 7-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Temp Range -45°F to 600°F

Rig Type Rigid

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

8" x 2" Semi-Steel Rigid Caster – 1250 lb | 4" x 4-1/2" Top Plate | CasterHQ from $39.00 USD

Diameter 8"

Capacity 1250 lbs

Wheel Cast Iron

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 9-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Temp Range -45°F to 600°F

Rig Type Rigid

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

4" x 2" Semi-Steel Rigid Caster – 700 lb | 4" x 4-1/2" Top Plate | CasterHQ from $29.00 USD

Diameter 4"

Capacity 700 lbs

Wheel Cast Iron

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 5-5/8"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Temp Range -45°F to 600°F

Rig Type Rigid

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

8" x 2" Mold-On Rubber Rigid Caster – 600 lb | 4" x 4-1/2" Top Plate | CasterHQ from $32.00 USD $40.00 USD

Diameter 8"

Capacity 600 lbs

Wheel Rubber

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 9-1/2"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Core Iron

Temp Range -40°F to 180°F

Rig Type Rigid

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

5" x 1-1/4" Polyurethane Swivel Caster – 325 lb | 3-1/8" x 4-1/8" Plate | CasterHQ from $27.00 USD

Diameter 5"

Capacity 325 lbs

Wheel Polyurethane

Mount Plate

Plate Size 3-1/8" x 4-1/8"

More Details Less Details

Width 1-1/4"

Height 6-1/4"

Bolt Pattern 1-3/4" x 2-15/16" slotted to 2-3/8" x 3-3/8"

Core Polyolefin

Temp Range -20°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

6" x 2" Polyurethane on Aluminum Swivel Caster – 1,250 lb | CasterHQ from $76.00 USD

Diameter 6"

Capacity 1250 lbs

Wheel Polyurethane

Mount Plate

Plate Size 4-1/2" x 6-1/4"

More Details Less Details

Width 2"

Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"

Temp Range Up to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

3" x 1-1/4" Solid Polyurethane Swivel Caster Set – 1,200 lb | CasterHQ $87.00 USD

Diameter 3"

Capacity 1200 lbs

Wheel Blue Solid Polyurethane

Mount Plate

Plate Size 2-3/8" x 3-5/8"

More Details Less Details

Width 1-1/4"

Height 4-3/16"

Bolt Pattern 1-3/4" x 2-7/8"

Temp Range -20°F to 180°F

Rig Type Rigid with Brake

Brake Side Lock Brake

Frame Stainless Steel

Spec-first industrial selection for fit, capacity, and mounting.

3" Solid Polyurethane 2 Locking 2 Rigid Caster – 1200 lb | CasterHQ $94.00 USD

Diameter 3"

Capacity 1200 lbs

Wheel Blue Solid Polyurethane

Mount Plate

Plate Size 2-3/8" x 3-5/8"

More Details Less Details

Width 1-1/4"

Height 4-3/16"

Bolt Pattern 1-3/4" x 2-7/8"

Temp Range -20°F to 180°F

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

4" x 1.25" TPR Swivel Caster – 300 lb | 2-3/8" x 3-5/8" Plate | CasterHQ from $16.00 USD

Diameter 4"

Capacity 300 lbs

Wheel Gray Rubber

Mount Plate

Plate Size 2-3/8" x 3-5/8"

More Details Less Details

Width 1-1/4"

Height 5-1/8"

Bolt Pattern 1-3/4" x 2-7/8"

Core Polyolefin

Temp Range -20°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

3" x 1.25" Semi-Steel Swivel Caster – 300 lb | 2.5" x 3.625" Top Plate | CasterHQ from $16.00 USD

Diameter 3"

Capacity 300 lbs

Wheel Cast Iron

Mount Plate

Plate Size 2-1/2" x 3-5/8"

More Details Less Details

Width 1-1/4"

Height 4-1/8"

Bolt Pattern 1-3/4" x 2-7/8"

Temp Range -40°F to 250°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

3" x 1-1/4" Polyurethane Swivel Caster – 250 lb | Plate 3-1/8" x 4-1/8" | CasterHQ from $16.00 USD

Diameter 3"

Capacity 250 lbs

Wheel Polyurethane

Mount Plate

Plate Size 3-1/8" x 4-1/8"

More Details Less Details

Width 1-1/4"

Height 4-3/16"

Bolt Pattern 1-3/4" x 2-15/16" slotted to 2-3/8" x 3-3/8"

Core Polyolefin

Temp Range -20°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

4" x 1.25" Polyurethane Swivel Caster – 325 lb | 2-3/8" x 3-5/8" Plate | CasterHQ from $18.00 USD

Diameter 4"

Capacity 325 lbs

Wheel Polyurethane

Mount Plate

Plate Size 2-3/8" x 3-5/8"

More Details Less Details

Width 1-1/4"

Height 5-1/8"

Bolt Pattern 1-3/4" x 2-7/8"

Core Polyolefin

Temp Range -20°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

3" x 1.25" Polyurethane Swivel Caster – 260 lb | 2.5" x 3.625" Top Plate | CasterHQ from $11.00 USD

Diameter 3"

Capacity 260 lbs

Wheel Polyurethane

Mount Plate

Plate Size 2-1/2" x 3-5/8"

More Details Less Details

Width 1-1/4"

Height 4-1/8"

Bolt Pattern 1-3/4" x 2-7/8"

Core Polyolefin

Temp Range -20°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

4" x 2" Green Polyurethane Swivel & Rigid Caster – 3200 lb | CasterHQ from $164.00 USD

Diameter 4"

Capacity 800 lbs

Wheel Polyurethane

Mount Plate

Plate Size 4" x 4-1/2"

More Details Less Details

Width 2"

Height 5-5/8"

Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"

Core Iron

Temp Range -50°F to 180°F

Rig Type Rigid

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

4" x 1-1/4" Polyurethane Swivel Caster – 300 lb | 3-1/8" x 4-1/8" Plate | CasterHQ from $19.00 USD

Diameter 4"

Capacity 300 lbs

Wheel Polyurethane

Mount Plate

Plate Size 3-1/8" x 4-1/8"

More Details Less Details

Width 1-1/4"

Height 5-1/8"

Bolt Pattern 1-3/4" x 2-15/16" slotted to 2-3/8" x 3-3/8"

Core Polyolefin

Temp Range -20°F to 180°F

Rig Type Swivel

Brake No Brake

Frame Zinc Plated Steel

Spec-first industrial selection for fit, capacity, and mounting.

Designed for engineers, manufacturers, and material handling professionals

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

Plate Mount Casters

Plate Mount Casters

Most Popular Plate Sizes

Shop by Wheel Material

Shop by Duty Rating

Institutional / Light Duty Plate Sizes

Medium Duty Plate Sizes

Industrial / Universal Plate Sizes

Heavy Duty & Extreme Duty Plate Sizes

How to Choose the Correct Plate Size

From Our Engineers: Plate Caster Selection Tips

Frequently Asked Questions

Caster Engineering Tools

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