Bigfoot Systems® pier footing forms are pre-molded bell-shaped footings - functionality at its finest - used for: • Decks & patios • Screened porches & verandahs • Homes, mobile & prefab homes • Cottages & camps • Additions, gazebos & ramps • Carports & garages • Barns & sheds • Sun rooms Save time, money & aggravation with Bigfoot - the best footing form! Bigfoot's concrete footing forms work better than building a box! Bigfoot out-performs any sono tube & footing! 20in. size fits either 6in. or 8in. concrete form tube