These 6 Layout Mistakes Instantly Cheapen Your Home

Deciding on the layout of a room can be a daunting task. After all, it's one of the most important aspects of interior design. Misjudge the size of a space and it can feel cramped and cluttered; overlook function and risk blocking a walkway and restricting the flow.

"First, consider the main part of the space and where you and guests will spend most of the time. Is there a focal point like a fireplace or large window?" asks Matthew Anderson, VP of visual merchandising at West Elm. "Once you’ve identified how you plan to use the space and what limitations or opportunities exist in a room, you can begin sketching out a floor plan."

If you've already decided on a layout but feel like something is amiss, it's not too late to change. "Don't be afraid to move things around," says interior designer Dan Mazzarini of BHDM Design. Ahead, we tapped Mazzarini, Anderson, and a host of interior design experts to find out which layout mistakes instantly cheapen and clutter a home—and, more important, how to fix them.