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    Joinery & Craft Details

    Traditional mortise-and-tenon joinery is only as good as the engineering and execution behind it. Precision fabrication and disciplined installation ensure structural integrity and visual clarity.

    Timber Frame Joinery System

    Exploded view showing mortise-and-tenon connections and wooden peg assembly. Each joint is precision-cut to create interlocking connections that have proven their strength for centuries.

    Why This Matters:

    Structural Advantage: Unlike metal fasteners that concentrate stress at single points, mortise-and-tenon joints distribute loads across the full contact surface. This creates connections that actually strengthen as the wood compresses under load.

    Precision-cut jointsHardwood pegsInterlocking design

    Technique: Mortise-and-Tenon with Pegs

    Mortise-and-Tenon Detail

    Precision-cut housing joint with multiple wooden pegs for structural integrity. The tenon fits precisely into the mortise pocket, then is secured with draw-bored pegs.

    Why This Matters:

    Longevity: Draw-bored connections actually tighten over time as wood shrinks and pegs compress. Properly executed joints require no maintenance for 100+ years—outlasting metal fasteners that can corrode or loosen.

    Draw-bored pegsTight tolerancesSelf-tightening joint

    Technique: Draw-Bored Pegging

    Traditional Joinery

    Hand-cut joinery demonstrating centuries-old timber framing techniques. Modern timber frames are fully engineered while honoring these traditional methods.

    Why This Matters:

    Repairability: Individual joints can be replaced or reinforced without dismantling the frame. A damaged timber can be sistered or spliced using traditional joinery—try that with a steel connection.

    Hand-cut precisionTraditional techniqueEngineered design

    Technique: Traditional Hand-Cut

    What does traditional timber frame joinery look like?

    Traditional timber frame joinery uses interlocking wood-on-wood connections—mortise-and-tenon joints, dovetail housings, scarf joints, and oak pegs (trunnels)—instead of metal fasteners. These joints are visible, structural, and cut by hand or CNC to tolerances of 1/16 inch. Hearthstone Design Build uses traditional joinery on every timber frame project.

    Appreciate the Craft?

    Every joint represents engineering, precision, and tradition. Let's discuss how we can bring this craftsmanship to your project.

    Request a Timber Frame Consultation(571) 556-1900

    Frequently Asked Questions

    Can I tour a completed timber frame?

    Private tours of select recent builds are arranged for serious prospective clients after a discovery call and, where required, owner permission. Most timber frame residences are private homes; commercial timber frame work at wineries, breweries, and community amenities is generally more accessible.

    Do you build timber frame outside Loudoun County?

    Yes — Hearthstone operates across Loudoun, Fauquier, and Clarke counties, with select projects across Northern Virginia and the Shenandoah Valley.

    What wood species do you use?

    Douglas Fir baseline; White Oak +$25/sq ft; reclaimed antique +$40/sq ft. Species selection happens during schematic design alongside joinery and enclosure decisions.

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    Explore Hearthstone Design Build

    Precision craftsmanship of timber frame joinery — mortise-and-tenon connections, hand-cut pegs, and traditional Douglas Fir and Oak techniques in photos.

    Hearthstone Design Build — timber frame estate work in Northern Virginia Hearthstone Design Build office at 19 N King St, Leesburg, Virginia

    Timber Frame Gallery

    Timber Frame Joinery Gallery — Craft Detail & Hand-Cut Connections

    Precision craftsmanship of timber frame joinery, up close. Mortise-and-tenon connections, hand-cut pegs, and the Douglas Fir and White Oak detail work that defines a real timber frame — as opposed to a bolt-and-bracket post-and-beam or a kit assembly. Every connection Hearthstone Design Build ships is hand-cut by our specialty timber fabrication partners, not machine-milled at scale.

    What This Gallery Documents

    • Mortise-and-tenon — the primary structural connection — a shaped tenon locked into a matching mortise, secured with a hardwood peg.
    • Scarf joints — end-to-end timber splices used on long runs and continuous plates.
    • Braces & struts — knee braces and diagonal struts that give the frame its lateral rigidity and its aesthetic rhythm.
    • Pegged connections — hand-driven hardwood pegs — no metal fasteners in the primary structural joinery.
    • Species detail — grain, color, and joinery character across Douglas Fir, White Oak, and reclaimed antique.

    How Hearthstone Frames Are Built

    Every timber frame Hearthstone Design Build delivers is custom-engineered and hand-cut in mortise-and-tenon joinery by our specialty timber fabrication partners. Timber species is selected based on structural requirements, architecture, appearance, availability, and budget. Douglas Fir is commonly specified for structural timber frames, while other species may be selected based on the project. Enclosure is typically SIP (structural insulated panels) for a continuous thermal envelope, though conventional framing over timber is used on hybrid projects. Raising day is the moment the frame becomes the finished architecture — cranes, crews, and precision coordination in three to five days on most residential frames.

    Related Timber Frame Resources

    Frequently Asked

    Can I tour a completed timber frame?
    Private tours of select recent builds are arranged for serious prospective clients after a discovery call and owner permission. Most timber frame residences are private homes; commercial timber frame work at wineries, breweries, and community amenities is generally more accessible.
    Do you build timber frame outside Loudoun County?
    Yes — Hearthstone operates across Loudoun, Fauquier, and Clarke counties, with select projects across Northern Virginia and the Shenandoah Valley.
    What wood species do you use?
    Douglas Fir baseline; White Oak +$25/sq ft; reclaimed antique +$40/sq ft. Species selection happens during schematic design alongside joinery and enclosure decisions.

    Next Steps

    Hearthstone Design Build — Custom Timber Frame Home Builder, Northern Virginia

    Hearthstone Design Build is a licensed Class A custom timber frame home builder and design-build firm based in Leesburg, Virginia. We design, engineer, permit, and construct timber frame homes, carriage barns, pavilions, and estate outdoor living across Loudoun, Fauquier, and Clarke counties.