Cologne 2014: Denmark design duo GamFratesi has combined a coffee table and pouffe to create footstools with integrated trays for French brand Ligne Roset (+ slideshow).

Trouf, a cross between a tray and a pouffe, was designed by GamFratesi with both hard and soft surfaces as a multi-functional piece of furniture.

"We wanted to join different functions just combining soft and hard surfaces, and create furniture where the different objects or moods find their place informally," Enrico Fratesi told Dezeen.

Wooden trays for holding food or drinks are set into the upholstered tops, offset so a fabric section at one end can be used for laptops, books or resting feet.

Rounded edges were designed so sharp corners wouldn't cause any issues when walking past. "It seemed correct to have a rounded shape," said Fratesi. "Since the position of the furniture is in front of a sofa or a lounge chair, we wanted to facilitate the passage between sitting and pouf - avoiding any kind of angle and the rigid part."

A palette of pastel colours was chosen for the fabric coverings, though these can be customised to match or stand out against the users' existing furniture.

"The colours that we have selected for these models are soft and nearly muted, but in fact the pouf can be upholstered with very different fabrics and colours so that can be in combination or contrast with the seat in front," Fratesi explained.

The surfaces are slightly raised on small white wooden legs. The trays are available in natural oak or stained the colour of anthracite, and can be removed along with the upholstery for cleaning.

Trouf is on display at Ligne Roset's stand located in Hall 11.3 at imm cologne until Sunday. It will also be shown at Maison&Objet outside Paris from 24 to 28 January.