Fiberglass Beams, Support Pig Flooring 1-Fiberglass beams are ideal products to support cast iron slats and plastic slats for pigs. 2-70mm, 100mm, 110mm, 120mm, 127mm, 135mm high beams are available; 3-Easy to install; 4-Can be cut at any lengths you need 5-Plastic beam bracket are available. 6-High strength, resistant to corrosion caused by manure 7- Guarantees a perfect stability and great resistance 8-Easier cleaning