Huddle rooms, or small-space meeting rooms, are meant for collaboration and designed for getting work done.

Businesses of all sizes and industries, co-working spaces and universities have started to build out these agile little rooms as a way for small teams to work together. They’re typically inexpensive to outfit and require little physical space, and many would argue that they are the most productive rooms in the building.

Whether your office is just starting to build or upgrade these rooms, or you’re looking for a way to use that weird-shaped closet that no one seems to know what it was ever intended for, you’ll want to take a look at this great paper from Lifesize, and include these five must-haves in your design.