Above Grade: What Framing Really Looks Like on a Custom Home Build

The Modern Tudor, Duxbury MA — Behind the Build

For six episodes we have been underground. Stumps and demolition, excavation, footings, grounding electrodes, foundation walls, basement preparation. Important work, all of it. Consequential work. Work that will quietly determine how this home performs for the next hundred years.

But there is no question that framing is the phase everyone has been waiting for.

Framing is when The Modern Tudor stopped being a foundation in a field and started being a building. Walls rising, floors spanning, rooflines beginning to cut against the Duxbury sky. The shape of this home is finally readable from the street and the energy on site has shifted completely. This is the phase where drawings become spaces, where dimensions become rooms, and where the character of the architecture starts to reveal itself in three dimensions for the first time.

Here is what framing actually involves on a custom home of this scale and complexity.

What framing is and why it matters

Framing is the structural skeleton of a home. Every wall, every floor assembly, every roof plane is defined and built during this phase. The framing is what carries the loads of the building from the roof down through the floors and walls to the foundation below. It defines the geometry of every room, establishes the rough openings for every door and window, and provides the substrate that every subsequent trade will attach to.

On a conventional production home, framing is often straightforward and fast. Repeated layouts, standard ceiling heights, simple roof forms. On a custom home like The Modern Tudor, framing is a considerably more complex undertaking. Every dimension reflects a specific design decision. Ceiling heights vary between spaces. The roof form, with the steep pitches and complex intersecting planes characteristic of Tudor architecture, requires careful engineering and precise execution.

Getting framing right is not just about structural performance, although that matters enormously. It is also about dimensional accuracy. A wall framed a quarter inch out of plumb becomes a tile installation problem. A floor framed with inconsistent joist spacing becomes a subfloor problem. A roof framed with a geometry that does not match the drawings becomes an everything problem. Precision at this stage makes every trade that follows easier, cleaner, and less expensive.

The sill plate and the connection to the foundation

Framing begins at the top of the foundation wall with the sill plate, a pressure treated lumber member that is anchored to the concrete with bolts cast into the foundation during the pour. The sill plate is the connection point between the foundation system and the wood frame above, and it is detailed carefully to prevent moisture from traveling up from the concrete into the framing.

A sill seal gasket is installed between the concrete and the sill plate to close any gaps and provide a thermal and air barrier at this critical transition. The anchor bolt pattern is checked against the structural drawings to confirm spacing and edge distances meet the engineering requirements. On a coastal site like Duxbury, where wind loads are a design consideration, the connection between the frame and the foundation is not a detail to be treated casually.

Floor framing and the first deck

With the sill plates set and confirmed, floor framing begins. On The Modern Tudor the first floor deck is framed with engineered lumber joists, specifically I-joists, rather than conventional dimensional lumber. Engineered I-joists offer several advantages on a custom home of this caliber. They are dimensionally stable, meaning they do not shrink, warp, or crown the way solid sawn lumber can. They can span longer distances without intermediate bearing, which gives the architect more freedom in open plan layouts. And they are produced to tight tolerances that make flat, consistent floor systems achievable.

The joist layout follows the structural drawings exactly. Doubled joists are placed under walls above. Beams are sized and installed to carry loads at openings and cantilevers. Blocking is installed at the perimeter and at intermediate bearing points. Every connection is made with the specified hardware.

The subfloor sheathing goes down over the joists with construction adhesive and fasteners to create a glued and nailed deck. A glued and nailed subfloor is stiffer, quieter, and more stable than one that is fastened only. On a high-end home where the finished floor materials will include hardwood, large format tile, and other materials sensitive to movement, this matters.

Wall framing and the character of the Modern Tudor

Wall framing is where the floor plan comes to life. Plates are cut and laid out on the deck according to the drawings, and walls are built flat before being tilted up and braced in position. Window and door openings are framed with headers sized to carry the loads above. Corners and wall intersections are framed to provide solid backing for interior finishes.

On The Modern Tudor, the wall framing reflects several decisions specific to this design. Ceiling heights were established to give the principal rooms the proportions that a home of this character demands. Window openings are large and carefully positioned to capture views and maximize natural light while respecting the rhythm of the Tudor facade. Several walls carry point loads from the roof structure above and are framed with built-up columns rather than standard studs.

The exterior walls are framed to accommodate a continuous layer of rigid insulation on the outside of the sheathing, a detail that dramatically improves the thermal performance of the wall assembly by eliminating the thermal bridging that occurs through standard stud framing. This is a detail that costs more to build and more to design but pays dividends in energy performance and comfort for the life of the home.

Roof framing and the Tudor roofline

If there is one element of framing on The Modern Tudor that captures the ambition of this project, it is the roof. Tudor architecture is defined above all else by its rooflines. Steep pitches, multiple intersecting planes, gable forms with strong vertical emphasis. The roof of a well-executed Modern Tudor is not just a weatherproof lid. It is a primary architectural element that defines the character of the entire home.

Framing a roof of this complexity requires both skilled carpenters and careful pre-planning. The geometry was worked out in detail during the design phase and the structural engineering accounts for the loads and spans at every condition. But translating that geometry from drawings to lumber requires craftspeople who understand how complex roof forms are laid out and cut, where valleys intersect, how hips are developed, and how the finished form should read against the sky.

This is the part of framing that most production builders never encounter. It is also the part that separates a home that looks like it was designed from one that looks like it was just built.

What comes next

The frame is rising and the shape of The Modern Tudor is becoming real. Next comes sheathing, windows, and the building envelope, the phase where the structure becomes weathertight for the first time and the interior work can begin in earnest.

The best episodes of this series are still ahead.

Follow along on Instagram as each phase unfolds.

Somma Builders is a licensed general contractor serving Greater Boston and the South Shore, specializing in custom homes, full renovations, and design-build projects. Follow The Modern Tudor series for a behind-the-scenes look at a ground-up custom home build in Duxbury, MA.