Steel Barndominium & Lean-To in Sonoma, California

Metal Building Outlet supplied two pre-engineered metal buildings for a resident of Sonoma, California, in July of 2022.

The larger of the two custom prefabricated steel buildings is a “barndominium,” or a building that merges living quarters with a shop, a garage, or another type of functional space. The smaller building is a metal lean-to that attaches to the main building. The metal home has two floors thanks to the addition of a 20’x58’ mezzanine, and (21) windows in a variety of sizes lighten and brighten up the space inside.

Both metal buildings feature upgraded standing-seam roofs with gutters and downspouts to help with drainage, and both have R-30 banded insulation systems in their roofs, helping guard against condensation while keeping energy expenses low. The walls of the metal buildings also feature R-19 fiberglass insulation with VRR+ vinyl facing, which helps protect the insulation blankets from moisture and damage.

The metal residential building also has a combination of 18” and 12” overhangs along its exterior, helping protect the buildings’ walls while creating covered outdoor space. Durable, low-maintenance, and easy to design and customize, steel barndominiums have become increasingly popular in recent years as more and more people began working from home.

Building Information and Special Features

Width

Bldg. A: 20’; Bldg. B: 8’

Length

Bldg. A: 58’; Bldg. B: 58’

Height

Bldg. A: 22’; Bldg. B: 10’/12’9”

Roof Pitch

Bldg. A: 7:12 Bldg. B: 4:12

Roof Sheeting

26 Gauge Galvalume PBR

Wall Sheeting

26 Gauge PBR

Wind Speed

110 MPH

Snow Load

0 PSF

Doors

(2) 16’x8’ overhead doors; (1) 6’x8’ sliding barn door; (1) 7’x8’ sliding glass door; (1) 3’4”x7’2” walk door

County

Sonoma County

Part of Northern California’s Wine Country, the city of Sonoma sits about 14 miles outside Napa.

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