THE NEWTON (5") COMPOSITE EXTERIOR WINDOW SILL
THE NEWTON (5") COMPOSITE EXTERIOR WINDOW SILL
MX213 Composite Window Sill-Exterior-Moulding
THE NEWTON (5") COMPOSITE EXTERIOR WINDOW SILL
THE NEWTON (5") COMPOSITE EXTERIOR WINDOW SILL
MX213 Composite Window Sill-Exterior-Moulding
THE NEWTON (5") COMPOSITE EXTERIOR WINDOW SILL
THE NEWTON (5") COMPOSITE EXTERIOR WINDOW SILL

SKU: MX213-SM

THE NEWTON (5") COMPOSITE EXTERIOR WINDOW SILL

WATCH OUR FEATURE ON THE DISCOVERY CHANNEL

The Newton is a structured, high-contrast window sill designed for those who seek a balance of traditional weight and clean-lined precision. Its profile is defined by sharp, angular steps that create deep, architectural shadow lines, grounding your window assembly with a sense of "quarried stone" permanence. Engineered with a high-density EPS (Expanded Polystyrene) core and our signature cementitious coating, the Newton provides the formidable presence of a solid masonry sill while eliminating the thermal bridging, weight, and freeze-thaw cracking associated with traditional stone.

6" SAMPLE - FREE SHIPPING

HEIGHT: 5

TOP DEPTH: 4-1/4"

BOTTOM DEPTH: 3-3/4"

8' LENGTH: $76.41

  • Architectural Profile: Linear sloped design with a precision-notched "double-step" underside and a smooth surface.
  • Finish: Factory-applied ultra-smooth cement; provides a professional, non-porous substrate for high-performance masonry paint.
  • Core Material: High-density EPS construction for superior edge-crispness and zero weight-bearing stress.
  • Moisture Management: 100% moisture-proof; features a high-performance drip-edge to divert water and prevent facade staining.
  • Installation: Labor-efficient adhered application; easy to cut and miter on-site for custom widths or bay window configurations.
  • Aesthetic Appeal: Ideally suited for Modern-Transitional, Contemporary-Classical, and Upscale Suburban designs.

Our composite mouldings are designed for a quick, nail-free install using high-bond adhesive. Watch our brief Installation video here to see the step-by-step process."

DESIGNER'S SUGGESTED STYLE KIT

How to Order

To ensure your project is successful, we recommend a brief consultation to verify your measurements, profile compatibility, and waste calculations.

Order Samples First

We encourage starting with a sample to verify scale and coating quality.

Ready for a Full Project Quote?

Whether you have a full set of architectural drawings or just a rough sketch, our team will provide a comprehensive quote and lead-time estimate.

  • Call Us: (905) 660-6338 | 1 (888) MOULDEX
  • Live Support: Use the Chat icon in the bottom corner for immediate assistance.
  • Direct Email: Here
Global Logistics & Fulfillment

We provide secure, flat-rate crating and shipping services across North America and globally. Our logistics team is experienced in handling architectural profiles to ensure they arrive at your job site in pristine condition.

In-Stock & Ready to Ship

We maintain a consistent inventory of job-lot quantities for our most popular profiles. These items are typically processed and ready for dispatch within 1–3 business days.

Transit Times

While dispatch is immediate, final delivery times vary based on your location:

  • Local Pickup: Available at our warehouse.
  • Regional (Ontario/GTA): 1–2 business days transit.
  • North America: 3–7 business days transit.
  • International: Custom quotes provided upon request.
Bespoke Architectural Tailoring

While we maintain an extensive library of stock profiles, our manufacturing process is designed for ultimate flexibility. If our standard dimensions do not meet your specific project requirements, we can modify any profile to your exact specifications.

Custom Shapes & Arches

We specialize in complex architectural shapes that traditional materials cannot easily replicate.

  • True Arches & Circles: Precision-manufactured to your window radius.
  • Ellipticals & Bow Arches: Factory-controlled accuracy for custom curves.
Historical Restoration & Replication

Do you need to match an existing moulding? Send us a physical sample or a scaled drawing, and our design team will recreate the profile with modern, maintenance-free composite technology.

Get a Custom Quote

For modifications or custom designs, Contact our Design Team or call us at 1 (888) MOULDEX.

As Seen on Discovery Channel: "How It’s Made"
National Recognition for Manufacturing Excellence

Our proprietary manufacturing process was selected by the Discovery Channel to be featured on their world-renowned program, How It's Made. This feature highlights our unique ability to combine high-tech precision engineering with a classic architectural finish.

What Discovery Channel Highlighted:

  • Precision Engineering: How we transform raw, high-density inorganic cores into complex architectural shapes with pinpoint accuracy.
  • Proprietary Coating: The science behind our signature cementitious plaster finish that provides a "real masonry" look while remaining lightweight and moisture-proof.
  • Durability Testing: Our commitment to producing profiles that stand up to the most extreme North American climates.

Watch the Segment
See the science behind the profiles. Witness how we create our maintenance-free mouldings from the raw material to the final hand-finished coat.

Watch our "How It's Made" Feature Here

What makes Mouldex Mouldings different from market alternatives?

We offer a unique combination of high-density EPS cores and a specialized plaster coating. This makes our profiles more versatile, lightweight, and durable than traditional wood, pre-cast, or stucco alternatives.

Can I order samples?

Yes. Samples are available for $1.00 USD each with free shipping. This allows you to verify the scale and coating quality before placing a full order.

Are the samples coated?

Standard stock samples are coated. For "made-to-order" profiles, we provide an EPS sample for sizing alongside a separate coated piece to demonstrate the final finish and quality.

What lengths do your mouldings come in?

Our standard manufacturing length is 8 feet.

Do you create custom mouldings?

Customization is our specialty. While we maintain over 100 stock profiles, we can produce specialty designs quickly and cost-effectively to match any architectural requirement.

Can you manufacture arches and curved profiles?

Yes. We manufacture arches, circles, ellipticals (ovals), and bow arches for any of our standard or custom profiles.

How do I choose the right Trim and Sill combination?

Each product page features a "Complete the Look" section with suggested pairings. Our design team is also available for consultation to help you select the perfect architectural stack for your project.

What colors are the mouldings?

Our exterior profiles arrive in a cement gray, and interior profiles are plaster white. Both act as a premium primer base, allowing you to apply any exterior acrylic latex paint and texture of your choice after installation.

Is there a minimum order quantity?

No. We support projects of all sizes and will ship orders as small as a single piece.

Will the mouldings crack or rot over time?

Our materials are 100% inorganic, making them impervious to rot and nature-driven decay. While all building materials face thermal expansion, our dense EPS core makes our profiles significantly less susceptible to cracking than traditional alternatives.

How are the mouldings installed?

We recommend a nail-free installation using high-bond architectural adhesive for a seamless finish. For a step-by-step visual guide, please visit our Installation Videos page.

THE MOULDEX ADVANTAGE

Rot-Proof

LIGHTWEIGHT

AS SEEN ON HOW IT'S MADE

MADE IN CANADA

CUSTOMIZABLE

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