Foster Supply stocks 8” and 6” thick concrete lagging that is 3’9” long by 24" tall. We can pour any size that is required upon request. We deliver it on pallets for easy handling, and usually have a large inventory of both 6 and 8 inch. Each lagging block has 5/8” reinforcing bar running vertical and horizontal. Foster Supply provides the whole package for our customers building pile and lagging walls including the perforated drainage pipes and geotextiles for separating aggregate drainage media from the natural soil.