Behind the Scenes: Episode 4 of Ellen's Design Challenge

This week's challenge? Make a sofa from scratch. See how the final four contestants created one-of-a-kind pieces -- and discover which designer went home.
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Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Photo By: Stephanie Diani / Getty Images

Four Designers Left

Since no contestants were sent home last week, all four have one more shot to prove themselves before the pool is narrowed to three. This week, the hopefuls are challenged to create a custom sofa that's a perfect fit for their designers' lounge space.  

Passing the Time

Carpenters Jeff Devlin, Karl Champley and Chip Wade joke around in the kitchen while waiting for their designers' couches to be evaluated at the end of the fourth challenge.

Give Chip a Hand(stand)!

Carpenters Karl Champley and Jeff Devlin help Chip Wade with his handstand, as seen on Ellen's Design Challenge.

Chip + Tim

The designers were asked to create a couch for the worshop lounge that would be comfortable, functional and consistent with the other furnishings. Tim and Chip opted for a streamlined, masculine piece.

Tim and Chip's Sofa

Tim designed a couch with a midcentury modern feel, with tufted faux black leather, bent steel that was powder-coated beige, and wooden details.

The Judges' Take on Tim

Guest judge Kathleen Clements, interior designer, and repeat panelists Amanda Dameron, editor in chief of Dwell Magazine, and Christiane Lemieux, executive creative director of Wayfair, evaluate Tim's piece.

Up Close and Personal

Judge Christiane Lemieux checks out Tim's couch, admiring the materials and execution.

The Judges' Critique

While the judges appreciated the quality of Tim's piece, they felt the uber-masculine design didn't jibe with the other pieces in the workshop lounge.

Ready for a Nap

After two long days of design and build work, carpenter Chip Wade takes a quick break on Tim's finished sofa in the workshop lounge.  

Gaspar and Brooks

Gaspar, who favors modern design, worked with carpenter Brooks to create a streamlined piece that could double as a nap spot.

Gaspar's Finished Piece

Gaspar de Jesus designed a couch with a sculptural wood frame and a pull-out foot rest.  

Double-Duty Furniture

The pull-out foot rest allows the sofa to double as a platform bed, as demonstrated by Gaspar and carpenter Brooks.

Testing it Out

Judge Christiane Lemieux tries out Gaspar's sofa. The judges liked his use of wood and the shape of the frame, but did not like his fabric choice and wondered how comfortable it would be.

Designed for the Room

Designed to fit into the workshop lounge, the judges liked the color of the sofa better in its intended environment.

Carley and Jeff

Carley's sofa strategy? With carpenter Jeff's help, she created a asymmetrical, whimsical piece with iron elements.

Carley's Finished Sofa

Designer Carley Eisenberg's couch was slightly curved to encourage conversation, and the high back on one side created a cozy, sheltered space.

Made for Conversation?

Carpenter Jeff and judge Christiane Lemieux try out designer Carley's couch. The asymmetrical layout makes one the couch comfortable for one, but awkward for two.

Custom-Forged Legs

Carley also forged decorative legs that mimicked the pattern of her upholstery.

Too Much Pattern

The judges felt a solid color upholstery would have better showcased her forged accents. They were also concerned about the proportions of the piece.

Katie and Karl

The resident experimental designer chose a more traditional sofa style with this week's challenge.

Spherical Sofa

Katie created a half-moon shape with marbled metallic fabric to make her low-slung orange sofa stand out. Clear acrylic legs make it appear to float above the ground.

Bolster Pillows

The square armrest pillows were unattached and could be moved to create a love seat, a solo throw pillow or standard sofa arm.

The Right Proportions

Katie's sofa was the right shape and size for the workshop lounge, but the judges weren't impressed with the piece's unfinished details.

Who Goes Home?

Though the judges weren't impressed with any one designer's work enough to name a winner, they did pinpoint Carley's design as this week's weakest.

Goodbye, Carley!

Designer Katie offers a hug to Carley as she exits the Ellen's Design Challenge studio. It's down to three designers in the next-to-last challenge -- tune in Monday at 9/8c for an all-new episode.