Here at Composite Garden Studios Ltds we advise internal floor space to be less than 30sq metres however, this does not include your decking area. Decking areas really are down to personal preference and usage, you may want to extend your decking area for seating and socialising or you may want an additional space for the children to play or even a hot tub area, this is where canopies can be added to. Our decking is made from the same materials as your Garden Studios blending in nicely, this also means that your decking, just like your garden room is low maintenance and will withstand all weather conditions.