NEW – PRE-STRESSED CONCRETE PANEL. Dimensions of panels are : 6.096m (20ft) x 1m x 140mm. Price is for 1 panel and discount available on larger volume. Samco Ltd – 01952 730464. The item “NEW PRE-STRESSED CONCRETE PANEL 6.096m (20ft) x 1m x 140mm” is in sale since Thursday, June 16, 2016. This item is in the category “Business, Office & Industrial\Containers & Pre-Fab Buildings\Pre-Fabricated Buildings”. The seller is “samco_ltd” and is located in Shifnal. This item can’t be shipped, the buyer must pick up the item.