Laminated tongue-and-groove decking by Lock-Deck was used for the second-level floor. The durable material is sturdy enough to span long distances without joists, maximizing headroom in the first-floor living room.

In the house’s front room Monkman relaxes on a stool from local retailer Andrew Richard Designs. A new window system draws in sunlight and views of the front courtyard designed by local landscape architect Terry McGlade, the building’s former owner.

Pernille Snedker Hansen’s Marbellous wood made a big impact on design blogs and Pinterest boards around the world when she launched it in 2011. For Maison & Objet, the Danish Drafts Collection CC16 exhibited a series of tongue-and-groove marbled wood panels, which Hansen designed to clad a cabin in the forest.

Off-the-shelf tongue-and-groove pine siding was used for the walls and ceiling. Vaulted spaces make the small footprints feel larger.

The original tongue-and-groove ceiling can still be seen in the living room, where an eclectic mix of furniture, including a Ligne Roset Togo, chair creates a laid-back ambiance.

One of the couple’s favorite elements is the tongue-and-groove wall by the stairs. After staining and finishing the Douglas fir boards themselves, they gave their contractor a mathematical pattern developed by their teenage son, Griffin. “It’s like a puzzle for people to try and figure out,” Moss says. Carrier designed the curvilinear steel railing.

The dining room features a tongue-and- groove Douglas fir ceiling. Original built-ins include a mahogany bench anchored between cabinets whose fronts tilt at the house’s signature 15-degree angle.

Kartheiser's courtyard also includes a dry sauna with a ceiling made from 2,500 pieces of wood.

A pitched, tongue-and-groove ceiling adds a rustic feel.

The interior is bright and airy with a white tongue and groove ceiling.

The tongue-and-groove ceiling is another classic midcentury feature.

The living room features a dramatic stone fireplace and vaulted tongue-and-groove ceilings.

The entire home is wrapped in pine tongue-and-groove, which matches the original finish on the ceiling.

The living and dining room feature a wall of glass and a classic tongue-and-groove ceiling.

Tongue-and-groove ceilings reference the home's midcentury roots.

The tongue-and-groove beamed ceiling has been painte

The post-and-beam construction features tongue-and-groove ceilings and walls of glass throughout.

The tongue-and-groove vaulted ceiling defines the living space.

The great room features an open floor plan, as well as a vaulted tongue-and-groove ceiling.

The master bedroom is awash with natural light and filled with warmth from the tongue-and-groove ceilings.

O’Sullivan designed the ceiling “to have a knitted or woven quality like that of wool or silk.” It dives down over the kitchen and dining area, eventually reaching a point at the entry that is low enough to touch. Here, resident Jes Wood leans against the onyx kitchen island while her daughter Ruby hangs out. Replica Jean Prouvé chairs surround the dining table; a vase by Bruce and Estelle Martin for Kamaka Pottery sits on top. The Reel table under the television is by Atelier Oï for B&B Italia.

Fabric options include light pink, mint blue, ochre, and sand.

The tongue-and-groove ceiling has not been painted, and globe pendant lighting abounds.

Arbel’s projects—both products and architectural commissions—follow a chronological numbering system. The house itself is his 23rd design, while the one-of-a-kind glass pendants that accent nearly every room like a starscape are called “28.”

All fabrics, including the standard light pink, are in the felt-like Divina MD.

Architect Bruce Bolander made the most of a limited footprint in a house he designed in a Malibu canyon. With the small bedroom unable to accommodate any "normal" size desk, the architect designed a very thin custom steel desk where resident Heidi Wright works. The floor-to-ceiling sliding glass doors from Metal Window Corporation open the entire corner of the room up to the outdoors. “The mountains across the way are almost like another wall—they contain the space to the point that you feel like you’re in a much bigger space, that you’re part of the overall landscape,” says Bolander. Photo by J Bennett Fitts.

“We’re here for almost three months every summer—and it works so well that you never feel it’s a small space. The separation and steps between each perfect little box create a great flow.”—Nadja van Praag

The open living plan features a cedar-paneled tongue-and-groove ceiling anchored by a brick fireplace.

At one end of the space, which is topped by a barrel ceiling, a hammock offers a tantalizingly cozy place to nap.

The tongue-and-groove ceiling extends to this hallway, which is flooded with natural light.

The renovated home maintains its original layout. To refresh the dated appearance of the space, Stonefox added cedar tongue-and-groove panels to the ceiling and refinished the floors. The living room rug is from Creative Matters, the WL Daybed is from Niedermaier, and the circular coffee table is a Tie and Die model from Holly Hunt.

Brogan’s home overlooking Lake Michigan is clad in tongue-and-groove new-growth cypress. Vertical basswood slats follow the stairs to the second floor and into the master bedroom, extending outside to serve as the railing for a small balcony.

HOWE also introduced leather options, in cognac or wine red.

Recessed ceiling lights, speakers, and the range hood ductwork are all concealed by the dropped ceiling. The stools are West Elm.

The Tongue chair is available with chrome or powder-coated-steel legs.

The large master bedroom boasts soaring tongue-and-groove beamed ceilings and oversized glass sliding doors.