50 Times People Made Such Bad Home Decor Choices, They Got Roasted On This Facebook Group

If you want to avoid ending up featured in a similar group, we can look at what the world's top interior designers told Vogue are the most common mistakes they encounter.

The first one is putting all the furniture against the wall. "You should have a few pieces that float in the room to create variety and interest in the floor plan," Young Huh of Young Huh Interior Design said.

"Sketch on paper how you might achieve this. One way is to have a chair or two floating in the middle of the plan into the seating arrangement."

Another important issue, according to Alfredo Paredes of Alfredo Paredes Studio is bad lighting.

"[Lighting] plays a huge role in how people experience a space. For example, one paint color under an incandescent lightbulb might look very different from the same color in natural lighting. If your home feels dark, you can just change out some lightbulbs or install a pair of sconces to make a space feel brighter. It doesn’t always have to mean a complete renovation," Paredes said.

"Making sure a room is properly lit is challenging," interior designer Nicole Hollis added. "Lighting can make or break a space."

"Using a professional lighting designer is recommended, but if doing it yourself, be sure to work on three levels of lighting: Ceiling lights to wash surfaces such as tables and artwork, floor lamps to provide ambient light throughout the room, and task lighting such as table lights or reading lights for specific tasks such as reading or working."

Another thing to remember is that you have to properly measure the space before you start decorating it. You might roll your eyes, but experts say people often miss what's obvious.

"Eyeballing seems like an easy skill (one for which Sister Parish had a famed and uncanny ability). That is until you can't fit a sofa through your front door! It has happened to the best of us," Alexa Hampton, founder of Alexa Hampton and principal of Mark Hampton Inc., said. "I also recommend going back to measure a second time; there is nothing like inverting a number or two to really hammer that point home."

"A common interior design mistake is that people don't bring designers on early enough in the process," industry professional Mandy Cheng pointed out. "We should be there immediately after you say to yourselves, 'We're ready to make these changes,' or, 'We want to redesign or redecorate the house.'"

"Oftentimes, clients reach out after they’ve bought the house and launched the contractor to renovate the kitchen and bathrooms. A third of the way through construction, the new homeowners are overwhelmed with all the decisions they’re needing to make, plus the thought of furnishing it afterward. Reach out when you’re in escrow or have closed escrow, and don’t launch a contractor until you’ve spoken to a designer first."

It's also important to understand, which can be challenging even for seasoned designers. "One thing I see people do frequently is put something really tiny or really massive into a room that inhibits its functionality and dooms its aesthetic," interior designer Martha Mulholland said. "If you know you need an enormous sectional for your Super Bowl parties, don't forget to think about the size of the coffee table and rug that will accompany it. An 8' x 10' rug will likely look like a postage stamp paired with most modern sectionals, even though it may seem like a reasonable size for the room. (My general rule with rugs and sofas, specifically, is that a sofa should sit fully on a rug, leaving at least a foot of space on all sides, and rugs should either be centered in a room with at least two-thirds of each upholstered piece sitting on top of it, or be a small accent that sits in front of the sofa, with a coffee table on top.)"