SKU: 17301016964

MDF Radius Corners, Econo Qtr Rnd (accepts 3/4" plywood), 4" Radius, 5 11/16"W x 1-11/16"D x 97"L

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Description

MDF Radius Corners, Econo Qtr Rnd (accepts 3/4" plywood), 4" Radius, 5 11/16"W x 1-11/16"D x 97"LWhite River Hardwoods MDF Radius Corners Made in the USA 4 Econo Quarter Round SKU 4ECQ34 Accepts 3 4 Plywood 4 Radius 97 Length Double Refined MDF 5 11 16W 1 11 16D Ships LTL The 4 Econo Quarter Round for 3 4 plywood box construction. Same precise 4 radius geometry as the 4ECQ58 engineered for the additional depth required by 3 4 plywood. Double Refined MDF, made in the USA. Made in Fayetteville, AR The Only National MDF Radius Corner Manufacturer in

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

4″ Econo Quarter Round

SKU 4ECQ34 · Accepts 3/4″ Plywood · 4″ Radius · 97″ Length

Double Refined MDF · 5 11/16″W × 1 11/16″D · Ships LTL


The 4″ Econo Quarter Round for 3/4″ plywood box construction. Same precise 4″ radius geometry as the 4ECQ58 — engineered for the additional depth required by 3/4″ plywood. Double Refined MDF, made in the USA.

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

The same trusted 4″ Econo Quarter Round geometry, engineered to accept 3/4″ plywood — the standard for most full-height cabinet construction.

Product Details

Dimensions & Specifications

SKU Profile Radius Accepts Width Depth Length
4ECQ34 Econo Quarter Round 4″ Radius 3/4″ plywood 5 11/16″ 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

⌒

Econo Quarter Round — 4″ Radius

The Econo Quarter Round profile at 4″ radius, engineered specifically for 3/4″ plywood box construction. The slightly deeper profile (1 11/16″ vs 1 5/8″) accommodates the additional plywood thickness without shimming or scribing.

▣

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

Econo Quarter Round

Radius

4″

Accepts

3/4″ Plywood

Width

5 11/16″

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.

4ECQ34 — 4″ Econo Quarter Round, 3/4″ Plywood. Precision radius corners 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: 17301016964

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4.7 ★★★★★
Based on 23 reviews
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Product Reviews
D
David Dorrell
Natrona Heights, US
★★★★★ 5
Seems durable and well made.
Review of Interactive Crinkle Duck Dog Toy – No Stuffing Plush Squeaky Pet Toy (14"x8"), Tear-Resistant Reinforced Stitching, Odor-Free Chew Toy, Keeps Them Busy for Small, Medium & Large Dogs Brand: PawBang My little dog loves toys. She is very smart and loves to play either alone or with me. I would toss the toy and she will get it and fling it around, or fetch it back. This toy works fine. It has a squeaker that she can find and work, or I can push to catch her interest. The toy seems safe for dogs, does not have fluff fill, which an active chewer will work to get at and then scatter all over. This has crinkly filler that sounds and feels sort of like cellophane plastic. She has not shown too much interest in this toy yet, her favorite toys are heavy round type with a piece of cloth or “handle” she can grip in her teeth and fling, but that is not to say this toy wouldn’t attract another dog or attract her at a later date. They all seem to have certain favorites they gravitate to. The toy seems well made and durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
M
Mark
Pawtucket, US
★★★★★ 5
Dog and dog parent approved!
If you are tired of typical stuffed toys being ripped apart by your best friend, and then having to pick up the stuffing and/or squeaker parts, then you will appreciate this crinkle duck toy. The toy itself is 14 inches long, 8 inches wide, and relatively flat. It is filled with a material that crackles (similar to crumpling up a plastic bag) when played with by your dog. It is rather sturdy and easy to throw. When shown to my puppy, who is 7 months old and likes to rip the stuffing out of anything he can, he took it and ran. This toy provided him with the entertainment that he enjoys and, best of all, no stuffing to be found! While I cannot say your dog will not destroy this toy, my pup has been enjoying it without it ripping for a while now and I am happy that he is happy with the toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
J
Jeddy 3
Houston, US
★★★★★ 5
Dog enjoys the durability and crinkling and I love the lack of stuffing
My miniature poodle was pretty excited about this toy. It has almost everything he loves in a toy: A squeaker, parts sticking out (wings and feet on this toy), a good size so he can shake it violently as if it were prey, and strong stitching so we can play tug o'war with him. He enjoyed the novelty of the crinkling, but ultimately he still seems to slightly prefer the stuffed toys, because there's just more to do as he rips them apart and makes a huge, gross mess of fluffy stuffing on the floor. 4 stars from the dog. For me? Five stars. Because it's tough, so I think it'll last a long time (has already lasted through many tug o'wars), and I don't worry about mess or potential accidental swallowing of polyester fluff-stuffing. So I'll round my rating up to 5.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
A
Adam S.
San Leandro, US
★★★★★ 5
Highly recommend! My dog loved it!
My dog absolutely loves this toy! She is a big fan of that crinkle sound some toys make and the head of the duck has a little squeaker! My dog is 23lbs for reference so you guys can get an idea as to how large the dog toy is. I just played a some soft fetch with her in the house as well as tug of war and she is not prancing around with the cute duck in her mouth 🥲
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
S
Scientific Baking
Alexandria, US
★★★★★ 4
Our dogs really like this toy
What a fun toy for our two dogs. It has a squeaker in the head, and the body makes a crinkle sound I think we will probably have to buy another one so that both dogs will have their own. We have discovered that dog toys with both a squeaker and crinkle become favorites of our dogs. Squeaking this toy several times bought both of our dogs running from the opposite side of the house. The duck dog chew toy is a bright yellow. It lays mostly flat. Even though our dogs are little, about 12 pounds each, they can easily carry this toy around. It is light enough and also large enough to work for any size of dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026

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