en s355 rolled steel joist size Rolled Steel Joists Sizes and Prices
Rolled Steel Joists. Joists are lightweight supporting members that form long-span support systems for the horizontal surfaces of a building, namely roofs and floors, by transferring their load onto columns and beams. Joists are typically smaller than beams, and tend to run parallel with them. NJR Steel supplies BS EN10025-2-S355 JR joists.