Cardboard sonotubes work well with Bigfoot footing forms:

• BF20 accepts cardboard tubes measuring 6" or 8"
• BF24 accepts cardboard tubes measuring 8" or 10"
• BF28 accepts cardboard tubes measuring 10" or 12"
• BF36 accepts cardboard tubes measuring 12", 14", 16" or 18"
• BFT12 directions (Bigfoot Plastic Sonotube 12)
• BFT10 directions (Bigfoot Plastic Sonotube 10)
• Bigfoot base details

BF20 20" diameter base Accepts 10 or 12" cardboard sonotube

BF24 24" diameter base Accepts 8 or 10" cardboard sonotube

BF28 28" diameter base Accepts 10 or 12" cardboard sonotube

BF 36 36" diameter base Accepts 12, 14, 16 or 18" cardboard sonotube

Bigfoot tubes BFT12 & BFT10 out-performs the rest!

• The Bigfoot BFT10 is a 10" tube made of recycled HDPE. Attach BFT10 to Bigfoot models BF24 or BF28 using four 1" screws.
• The Bigfoot BFT12 is a 12" tube made of recycled HDPE. Attach BFT12 to Bigfoot models BF28 or BF36 using six 1" screws.
• BFT10 and BFT12 meets or exceeds all local and national building codes when used with a Bigfoot Systems® footing form.
• Safety tops keeps dirt, rain, kids, pets, etc. from falling into the tube prior to the pouring of the concrete.
• BFT10 and BFT12 will not break down due to dampness, they may be left in the ground until ready to pour concrete
• Note: Screw indents are located on the flange of the BFT10 and 12.
• Click BFT10 directions!
• Click BFT12 directions!
• Bigfoot footing forms
• decks.com concrete calculator
• Bigfoot pier footing forms saves time, money & hassle!