With its four rods, the Tube Chandelier casts a striking shadow when lit. Available in either satin brass or black plated stainless steel.

The circularly arranged fluorescent bulbs have been reclaimed from architecturally significant buildings in Canada—like the Mies van der Rohe’s TD Tower, Toronto’s Old City Hall and the University of Toronto. Photo courtesy of Matter.

Made from recycled fluorescent bulbs, steel, rubber and hardware, the Recycled Tube Light measures 8” x 69” and is a great example of creative upcycling. Photo courtesy of Matter.

HAY Tube Chair by KiBiSi. Designed in 2008 for the 8 House. In stores in 2010. Photo courtesy of KiBiSi

The fluorescent tubes are lit from the inside, using centrally placed (functioning) bulbs, giving off a soft, warm light. Photo courtesy of Matter.

One of the models Parfett designs is the Tube, a slender room that can be built off site. Mellen says the company wants to do more "off-the-peg" designs like the Tube and Pod, to add more affordable and easily integrated models. Each tree house is assembled in pieces via sophisticated computer technology in a warehouse to maximize control and minimize waste and on-site disturbance.

The plexiglass tube's reverse lighting scheme emulates a starry sky above the patio when the interior is lit up at night.

As the sun angle changes throughout the day, the aperture of the facade tubing changes with it, sometimes projecting an array of individual spotlights around the living room and gallery.

Lee Broom’s Tube light is made from a singular piece of milled marble and a strip of LED bulbs, giving the illusion of glowing stone.

An array of solar thermal tubes crowns the garage, and photovoltaic panels extend like wings over the third-floor deck. “If we were going to make a big architectural move, we had to have reasons,” Moore explains, referring to the conspicuous placement of the panels.

A steel tube chair designed by Willem Hendrik Gispen (1890-1981).

Designed by the renowned Konstantin Grcic for Maharam, the Tube Bag sports a tough polyurethane shell and padded ripstop nylon interior. Two front pockets and a zip compartment will keep its contents organized and secure.

Detroit Tube Products has been operating in the city since 1911. Its CEO, Therese Bellaimey, a Detroiter and the third generation of her family to run the business, joins the panel to share her insights on the region's manufacturing landscape and how collaboration is the key to a thriving local economy.

We lay out steel tubes on the platform based on the fabrication drawings, and then mark the angle of the cut on the steel tubes.

Lee Broom's marble Tube Light, from the designer's Nouveau Rebel collection, is now sold at The Future Perfect for $5,310. The handcrafted take on the old fluorescent tube is a technical marvel: it's milled from one piece of Carrara marble to less than a quarter-inch thickness, then filled with an LED strip that, when illuminated through the white marble, gives off a warm glow.

Triwa Tube Tank (Poznan, Poland: 2012) This pop-up store by Mode:lina Architekci could easily demolish any kiosk in an American mall. Straps hold together a tank-shaped block of cardboard tubes, an eye-catching structure designed to invite shoppers to experience the Swedish watch brand. Photo by Mode:lina Architekci

The Vertical Tube Light blends recycled materials and innovative design to create a truly distinctive light source. Recycled T8 fluorescent bulbs serve as diffusers, allowing the lamp to emit a soft, warm light. The recycled bulbs are secured by a powder-coated white metal strap, furthering the industrial look of the light.

Bakker has designed many new kinds of vessels for producer and curator Thomas Eyck, his friend and first patron, including a watering can made of a single copper tube. “With the watering can, I questioned the relationship of its elements. I made the spout, handle, and container continuous and the same size. Everything is now container, handle, and spout at the same time.”

The Vertical Tube Light is an unexpected light that blends recycled materials and innovative design details to create a truly distinctive light source. The light is comprised of recycled T8 fluorescent bulbs as diffusers, which work to emit a soft, warm light. The recycled bulbs are secured by a powder-coated white metal strap, furthering the industrial look of the light. The light can be used to complement a modern interior, or as a pleasant contrast in a more traditional space. The Vertical Tube Light can be suspended on its own, or grouped in clusters with other lights to create a bold lighting display.

Earth House is dedicated to Dong-joo Yoon, a Korean poet who died as a political prisoner in Japan during WWII.

In the bedroom, mailing tubes tucked between a concrete weight-bearing post and the eastern wall serve as substitutes for a chest of drawers.

A close up view of the rubber tubes in Anemone.

Muuto's Fiber Chair, as shown in cognac silk leather with black tube base.

A nighttime view, all lit up with Artemide fluorescent tubes.

In this kitchen, three globe pendants with brass details and burgundy cords match the hood tube hanging above the kitchen island.

Oregon. Based in Portland, Pigeon Toe Ceramics founder Lisa Jones creates sleek porcelain tabletop items, kitchen accessories, lights, and more. While the majority of the pieces are white, pops of color are scattered throughout.

The dwelling is raised on three marine-grade, aluminum-alloy flotation tubes, each with five sealed compartments for extra safety.

Architect Shigeru Ban has designed temporary shelters for disaster-stricken areas such as Japan, Turkey, New Zealand, India, and the Phillipines.

After measuring, our staff cut the ends of the steel tubes to the correct angle.

The wood-and-steel open staircase wends its way up three stories, supported by a concrete structural wall embedded with PVC tubes and bare lightbulbs.

The Tube Light, along with other pieces from the Nouveau Rebel collection, is included in Broom's interior design for the new restaurant Old Tom and English in London.

Lewis descends a metal-tube set of stairs fabricated by a maker of ship’s ladders. A bannister from the original restaurant stairway serves as a railing for the sleeping loft.

Chicago Metal Rolled Products, a company that specializes in roller coaster track, fabricated the addition’s columns using a technique called “round tube bending”— a cold process by which straight 8-foot-long hollow tubes are pushed through a series of dies and rollers to bend them into a desired shape.

A floating steel staircase ties the living area and loft together. Variegated steel tubes provide graphic punch while maintaining the apartment’s airy and open feeling.

A small door lets cooks and hungry interns into the Cor-Ten steel and corrugated polycarbonate tube.

Test Tube Chandelier by North Carolina State University landscape architecture student Benjamin Knudsen.