A pavilion kit can become the frame for a sunroom. This family built a Western Timber Frame™ three-gable pavilion kit, 16′ × 20′ in the 8,000 Series, and enclosed it with glass, siding, and French doors to create a bright pavilion sunroom integrated with their home. The timber frame and roof went up quickly, and the walls and windows came after.

A sunroom, also called a sun porch, garden room, conservatory, or Florida room, is a space filled with sunlight. It often has a short knee wall topped with glass, and it can be freestanding, attached, or, as here, integrated with the house.

Finished three-gable timber frame sunroom beside a home, with large windows and a light dusting of snow on the lawn — The finished three-gable sunroom.

Key Takeaways

Frame first: a three-gable pavilion kit provides the timber frame and roof
Then enclose: glass, siding, and French doors turn it into a sunroom
Size: 16′ × 20′ roof in the 8,000 Series with 8″ posts
Power: a TimberVolt® Inferno power post for charging, lights, and fans

How Was the Sunroom Designed?

The design started with the open timber frame, a three-gable roof with a full wrap, then added glass in the gables, a knee wall, side windows, and French doors.

Design drawing of the open three-gable timber pavilion frame with a full wrap roof before the sunroom walls are added — The open three-gable frame.

Design drawing of a three-gable timber pavilion enclosed as a sunroom with glass walls, knee walls, and French doors — The frame enclosed as a sunroom.

Front elevation drawing of a three-gable pavilion sunroom with measured gable glass, French doors, and side windows — Front elevation with French doors.

Design drawing of a three-gable pavilion sunroom with a shingled roof, sided knee walls, glass panels, and French doors — The shingled roof and sided knee walls.

Labeled design drawing of the three-gable pavilion frame beside a rendering of the finished enclosed sunroom — The frame and the finished design side by side.

How Did the Finished Sunroom Turn Out?

The family did beautiful work, and thank you for the pictures. The dark timber frame contrasts with tan siding outside and warm pine paneling inside, and large windows frame the mountain views.

Front of a finished three-gable pavilion sunroom with dark timber posts, gable windows, and white French doors — Gable windows over the French doors.

Corner view of a timber frame sunroom with tan siding, glass panels, and a shingled roof attached to the home — Siding and glass from the corner.

Inside a timber frame sunroom looking out through French doors and gable windows to a snowy yard and mountains — Looking out through the French doors.

Inside corner of a timber sunroom with pine paneled knee walls and large windows framing a rock wall and mountains — Mountain views from inside.

Interior wall of a timber frame sunroom with pine plank paneling and a sliding window looking toward the house — Pine paneling and a sliding window.

What Are the Specifications?

Structure	Three-gable pavilion kit, enclosed as a sunroom
Timber series	8,000 Series, 8″ posts
Wood	Douglas Fir
Roof size	16′ × 20′
Post footprint	14′ × 16′
Roof	Full wrap
Beam profile	Axis
Knee braces	Custom
Stain	Two-tone
Configuration	Freestanding frame, integrated with the home
Power	TimberVolt® Inferno power post

The TimberVolt® power post is pre-wired for charging phones and tablets and gives easy access to power for lights, fans, and other accessories at the roof.

Timber pergola post with a built-in TimberVolt power outlet beside a stone column and a landscaped garden — A TimberVolt® power post.

Can Walls or Privacy Panels Be Added to Other Structures?

Walls, privacy panels, and lattice can be built into a cabana, pergola, pavilion, or gazebo design to suit how a family wants to use the space, from privacy beside a hot tub to a sheltered outdoor living room.

Dark stained timber pavilion with a privacy wall beside a hot tub on a terraced rock-landscaped backyard — A privacy wall beside a hot tub.

Timber pavilion with a solid side wall beside a stone stairway and greenhouse in a landscaped backyard at sunset — A solid side wall on a pavilion.

Gabled timber pavilion with a stone fireplace and outdoor living room furniture beside a backyard swimming pool — A pavilion outdoor living room.

Gable-roof timber pavilion with arched knee braces and glass-paneled walls on a concrete pad in a grassy yard — Glass-paneled walls.

Design drawing of a shed-roof timber pergola with a louvered privacy wall along its back on a paver patio — A louvered privacy wall.

Questions About Pavilion Sunrooms

Can a pavilion kit be turned into a sunroom?

Yes. A timber pavilion kit provides the frame and roof, and walls, windows, and doors can be added to enclose it. This family built a three-gable pavilion kit and enclosed it as a sunroom.

What is a three-gable pavilion?

A three-gable pavilion has gables on three sides of the roof, which adds height, light, and architectural interest compared with a simple two-gable roof.

How long does the frame take to install?

Because the timbers arrive pre-cut, the frame and roof of a pavilion kit often go up in an afternoon to a day. Enclosing it with walls and windows is a separate step that takes longer.

Can walls or privacy panels be added to a pavilion or pergola?

Yes. Walls, privacy panels, and lattice can be integrated into a pergola, pavilion, cabana, or gazebo design to add shelter and privacy.

Can power be built into the posts?

Yes. A TimberVolt® power post runs wiring inside the timber for outlets, USB charging, and power for lights and fans.

Western Timber Frame has designed, handcrafted, and delivered more than 7,000 outdoor structures in all 50 states since 2008. See more timber pavilions, or request a free design consultation and call 877-870-8755.

Western Timber Frame™ — Payson, Utah | Since 2008 | 7,000+ structures in all 50 states
2026 SBA Manufacturing Award | HGTV Design Excellence Award | 28 Best of State Awards