16×20″ is a format that gives you room to work, large enough for ambitious compositions, but still manageable to handle without a dedicated studio setup. It suits painters who find quarter imperial slightly restricting but aren’t ready to commit to full imperial sheets. Both sides of the sheet can be painted on with equal confidence. The four natural deckle edges mean the finished work looks considered, whether you choose to frame it with a mount or float it in a deep frame with the deckle edges showing.