Craftsmanship

Construction

Every Capstone piece is built with premium materials and time-honored techniques, designed to deliver lasting comfort and structural integrity for years of daily use.

Foundation

Solid Hardwood Frame

Every piece is built using a solid, kiln-dried hardwood frame designed for long-term structural integrity. Frames are constructed from single, continuous sections of wood – never particle board or plywood – to ensure strength and stability where it matters most. All joints are fully corner-blocked and reinforced, creating a rigid foundation that supports the upholstery, suspension, and daily use for years to come.

Limited lifetime warranty on frame construction

(available only to the original residential user)

Suspension & Support

We offer two suspension systems, each engineered for lasting comfort and support. Our standard Pirelli webbing delivers a modern, resilient foundation, while 8-way hand-tied springs are available as an upgrade for clients who prefer a traditional approach.

Pirelli Webbing

Standard

Our standard seat suspension is constructed using premium Pirelli woven webbing, a proven system widely used in European upholstery for generations. Made from high-quality rubber, the webbing is stretched and woven into a supportive grid that delivers a consistent, comfortable sit across the entire seat.

Pirelli webbing offers high tensile strength with built-in elasticity, allowing the seat to flex naturally while maintaining proper support. The result is a resilient, balanced feel with a subtle bounce — supportive without feeling rigid. Its low-profile construction allows for clean, tailored upholstery lines while still providing excellent comfort and durability.

Reliable, adaptable, and easy to maintain, Pirelli webbing represents a modern, well-engineered approach to suspension that performs exceptionally well in both everyday use and refined, custom upholstery applications.

8-Way Hand Tied Springs

Upgrade

We offer 8-way hand-tied springs as an optional upgrade for clients who prefer a traditional approach to seat suspension. This method has been used in fine furniture for generations and is widely regarded as a longstanding industry benchmark.

In an 8-way hand-tied system, individual coil springs are set on a web base and tied by hand in eight directions—front to back, side to side, and diagonally. Each spring works independently while remaining connected to the surrounding network, allowing the seat to respond evenly to weight and movement. The result is a supportive, flexible sit with a steady feel over time and minimal noise.

Because this technique is an intensive process executed by skilled craftspeople, it requires significantly more labor and time, which is reflected in the added cost. While our standard Pirelli webbing benefits from modern materials and proven European construction – and delivers excellent comfort and reliability – 8-way hand-tied springs remain a thoughtful option for those who appreciate traditional craftsmanship and time-honored upholstery methods.

Limited lifetime warranty on suspension

(available only to the original residential user)

Comfort

Seat Cushion Foam

All seat cushions are crafted with 2.5-density high-resiliency foam, widely regarded as the highest quality foam used in fine upholstery. This premium material offers exceptional support while maintaining its shape and comfort over time, resisting sagging and breakdown with regular use. Cushions are available in Soft, Medium, or Firm, allowing the overall sit to be tailored to each client's preferred level of comfort.

The foam we use is known as CertiPUR-US, which is certified polyurethane foam that has been tested to meet strict standards for health, safety, and environmental friendliness. This certification means the foam is made without formaldehyde, heavy metals like lead and mercury, and certain phthalates. It also ensures low Volatile Organic Compound (VOC) emissions, which are important for indoor air quality, and it is made without ozone depleters or harmful flame retardants.

Limited lifetime warranty on seat foam

(available only to the original residential user)

Seat Cushion Wrap/Back Pillow Fill

Seat cushion wraps and back cushions are available in a range of fills, allowing the overall look and feel of the piece to be tailored from clean and structured to soft and relaxed.

Fiber

Our standard option is Fiber, a durable, low-maintenance fill that delivers a uniform, tailored appearance with firmer support. Seat cushions use a smooth fiber wrap around the foam core to add light softness while keeping edges crisp, while back cushions are filled with air-spun polyester designed to resist clumping and maintain an even shape over time.

Trillium

For a softer, more cushioned feel, we offer Trillium, a premium synthetic down alternative that mimics the weight and plushness of natural down without allergens or animal content. It creates a relaxed, inviting sit and appearance, and requires periodic fluffing to maintain loft.

Feathercloud

Feathercloud, a blend of cluster fiber with a small percentage of down and goose feathers, offers a balance of softness and structure. It has more loft and support than Trillium, with a refined, lived-in feel.

10/90

For those who prefer a classic, traditional cushion, our 10/90 down blend combines goose down and feathers for a lofty yet supportive result. This option provides noticeable structure with a relaxed aesthetic and benefits from regular fluffing and rotation.

All premium fills are encased in channel-sewn covers to help maintain even distribution and long-term performance.

Details

Seams

Seam construction plays a key role in both the appearance and character of each piece. By default, most styles are finished with a tailored top stitch, selected to complement the overall design and upholstery material. Standard seam construction may vary slightly by style to ensure proper proportions and clean lines.

For further customization, we offer several optional seam treatments. Plain seams provide a clean, understated look with minimal visual interruption. Piping (also known as welt) adds a subtle corded detail that outlines the silhouette and highlights the shape of the piece. Double stitch seams introduce a more defined, crafted look with parallel lines of stitching, while flange seams create a relaxed, layered edge for a softer, more casual aesthetic.

Each seam option is executed with precision and can be selected to align with the desired style, fabric choice, and level of visual detail.

Quality Control

Every piece undergoes a thorough quality inspection before leaving our workshop to ensure it meets both our construction standards and the specific details of your order. From frame and upholstery to finishes and tailoring, each element is carefully reviewed for accuracy and craftsmanship. We take pride in what we build, and maintaining product integrity at every stage is a core part of our process.

Built to Last, Backed by Our Warranty

We stand behind the quality of every piece we build. Learn more about our coverage, or get in touch with any questions.

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