SKU: 4506399758

MDF Radius Corners, J Corner (accepts 3/4" plywood), 3" Radius, 4 1/4"W x 1-11/16"D x 97"L

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Description

MDF Radius Corners, J Corner (accepts 3/4" plywood), 3" Radius, 4 1/4"W x 1-11/16"D x 97"LWhite River Hardwoods MDF Radius Corners Made in the USA 3 J Corner SKU 3J34 Accepts 3 4 Plywood 3 Radius 97 Length Double Refined MDF 4 1 4W 1 11 16D Ships LTL The J Corner profile at 3 radius for 3 4 plywood. The J Corner geometry wraps both the front face and the return of the corner delivering a more enclosed radius transition than the Econo Quarter Round for applications where the cabinet side panel is visible. Made in Fayetteville, AR The Only

White River Hardwoods · MDF Radius Corners · Made in the USA

3″ J Corner

SKU 3J34 · Accepts 3/4″ Plywood · 3″ Radius · 97″ Length

Double Refined MDF · 4 1/4″W × 1 11/16″D · Ships LTL


The J Corner profile at 3″ radius for 3/4″ plywood. The J Corner geometry wraps both the front face and the return of the corner — delivering a more enclosed radius transition than the Econo Quarter Round for applications where the cabinet side panel is visible.

Made in Fayetteville, AR · The Only National MDF Radius Corner Manufacturer in the USA

The J Corner wraps the radius and the return — a more complete corner solution for cabinetry where both faces of the corner are finished and visible.

Product Details

Dimensions & Specifications

SKU Profile Radius Accepts Width Depth Length
3J34 J Corner 3″ Radius 3/4″ plywood 4 1/4″ 1 11/16″ 97″

* Material: Double Refined MDF. Lead time: 7–10 business days. Ships LTL — minimum $45 freight. Street address required for delivery.

Why MDF Radius Corners

The Problem This Solves

⌒

J Corner — 3″ Radius

The J Corner profile encloses both the radius face and the side return of the corner in a single piece. Where the Econo Quarter Round covers the radius only, the J Corner profiles the full corner transition — the right choice when the cabinet side panel is a finished, visible surface.

▣

Double Refined MDF

Double Refined MDF machines cleanly, paints to a flawless finish, and holds its shape over time. No grain inconsistency, no void risk — just a consistent, dense substrate that takes primer and paint the way cabinetry demands. A surface indistinguishable from solid wood when properly primed and painted.

★

Only National Manufacturer

White River Hardwoods is the only national manufacturer of MDF radius corners in the USA — made in Fayetteville, AR. Consistent quality, reliable availability, and a supplier that has been delivering to the cabinetry industry nationally for decades.

⊞

Accepts 3/4″ Plywood

Engineered specifically for 3/4″ plywood box construction — the standard substrate for this profile. The plywood box butts cleanly into the radius corner without shimming, scribing, or custom fitting. One piece, right the first time.

Technical Specifications

Key Facts

Profile

J Corner

Radius

3″

Accepts

3/4″ Plywood

Width

4 1/4″

Depth

1 11/16″

Length

97″

Material

Double Refined MDF

Lead Time

7–10 Business Days

Made In

Fayetteville, AR

Installation

Working With Radius Corners

1

Plan Your Layout

Determine the location and orientation of each radius corner. The piece is 97″ long — cut to your finished height. Mark cut lines accurately before cutting; MDF does not forgive mis-cuts at visible faces.

2

Cut to Height

Cut with a fine-tooth carbide blade — MDF dulls blades quickly. Cut from the finish face to minimize tear-out. Support the full length when cutting to prevent binding and chipping at the cut line.

3

Dry Fit First

The 3/4″ plywood box should seat cleanly into the radius channel. Dry fit before applying any fasteners or adhesive — confirm seating depth and check that the radius face is flush with adjacent cabinet faces.

4

Fasten & Secure

Secure with construction adhesive and finish nails or screws through the cabinet box. Pre-drill to avoid splitting. Set fasteners slightly below the surface — MDF fills cleanly and holds fasteners well when properly pre-drilled.

5

Fill & Prime

Fill all nail holes and seams with lightweight filler. Sand flush when dry. Apply a quality MDF primer before finish coats — MDF is highly absorbent and requires a sealing primer coat for a smooth, paint-ready surface.

6

Finish to Match

Apply your chosen paint in thin, even coats over the primed surface. Two finish coats over primer is standard for a smooth painted cabinet finish. Sand lightly between coats with 220-grit.

Always Prime MDF Before Finishing

MDF is highly absorbent at cut edges and faces. A quality MDF-specific or high-build primer is essential before any finish coat. A properly primed MDF radius corner paints to a finish indistinguishable from solid wood — skipping the primer step results in an uneven surface that requires significant additional work to correct.

Shipping — LTL Freight

MDF Radius Corners ship via LTL freight. Freight is calculated by destination with a minimum charge of $45. If actual freight exceeds $45, a separate freight invoice will be emailed after your order is placed.

Important: LTL delivery requires a physical street address. We are unable to deliver to APO/FPO addresses or PO Boxes. Estimated lead time is 7–10 business days from order confirmation, subject to inventory availability.

3J34 — 3″ J Corner Radius, 3/4″ Plywood. Made in the USA.


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4506399758

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Ida H
Lowell, US
★★★★★ 5
My dog loves this ball!
Style: Talking Babble, Size: Small
My dog loves the Talking Babble Ball, we have purchased several of them. When a finally ball stops talking, we buy another one!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
D
Verified Purchase
Deborah Bennett
Draper, US
★★★★★ 4
Nice dog toy but batteries were bad
Style: Blinky Babble, Size: Small
Very cool product as we already had the blue babble one. Our puppy likes to watch it flash and make noise when she touches it. However, upon opening the item the same day we received it and removing the strip so it would turn on, it worked for less than a minute. After taking out the bottom screws, my husband saw corroded batteries. We are disappointed that the intact batteries were not good. Luckily we had ordered a 10 pack of batteries at the same time so were able to replace them and give the toy back to our puppy to play with. Shipment was fast. Item is very durable and both our dogs will have fun with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
K
Verified Purchase
Karen Worley
Charlottesville, US
★★★★★ 5
Dog approved!
My dogs love this. This is the 3rd time I have bought them. They are entertained for hours and keeping their teeth strong. They pay me no attention when they have this toy. 😂
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
C
Verified Purchase
CPickens
Chelsea, US
★★★★★ 5
Extra Small Perfect for my Toy Dogs
My toy dogs love this so much that I ordered a second one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
A
Verified Purchase
aj
Lexington, US
★★★★★ 5
Our Dog Loves This One
We got our dog two nylabones and this benebone and he really prefers this one. Like the nylabones he barely even looked at, but he loves this one so much it's starting to splinter off a little. Apparently it can just be sanded down again but I'll probably end up getting more of these so that we can switch them out. I noticed that the shape also helps him be able to handle it with his paws.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

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