For a Limited Time: The LOWEST Prices on the Most POPULAR Pipe! GoBob is now offering NEW 2 7/8" OD pipe at prices lower than they've been in years. We have this pipe available in two wall thicknesses: .190 wall (perfect for posts), and .145 wall (which works great for rails)! Our 2 7/8" OD .190 wall pipe in 8 foot SAW CUT posts: just $28.80 per post!! Our 2 7/8" OD .145 wall pipe: just $2.94 per foot!! That's right - the .145 wall pipe is less than $3 per foot! This pipe is heavy duty and guara