Reviews : Plastruct I Beam Styrene 1/2 (4) Plastruct I Beam Styrene 1/2 (4) $6.69 Leave a Rating! ★ ★ ★ ★ ★ OR Write a Review! Write a Review Sort 5-Star: 1 (10 ratings) 4-Star: 0 (1 ratings) 3-Star: 0 (0 ratings) 2-Star: 0 (0 ratings) 1-Star: 0 (0 ratings) Reviews Styrene I beam By: hvacmetalman These are awesome and well worth the money, used them to stiffen up the deck on a model ship build and they worked perfect. (3)