We produce floor joists for construction. Block structures are widely used in civil and industrial construction for floors, columnar metalworks as well as for building roofs, bridges, abutments, overhead rails, crane trestles, indoor markets, station houses, etc. Builders employ wood-and-metal joists in load-bearing frames, roof truss structures and interfloor overlapping.
A wood-and-metal joist consists of a weld metal core covered with two wooden plates which are fastened alternately longwise with expandable bushing.
A wood-and-metal joist tempers the best qualities of metal and genuine wood:
- dimensional stability
- multipurpose usefulness – for roofs, ceilings, walls, and floors
Thus, wood-and-metal joists are more competitive in comparison with other kinds of joists.
We can offer You a wide range of wood-and-metal joists with different characteristics and dimensions.
Dimensions and characteristics of wood-and-metal joists
|1. Overall dimensions, mm|
|- breadth (Â +1,0 / - 2,0)||60||75||90||100|
|- height (Í ± 2,0)||200||250||300||350|
|- length (L - 3,0)||3600*||4800*||6000*||7200*|
|2. Space between bush rows (h ± 1,0), mm||150||200||250||300|
|3. Space between the butt and the end bush (̀ ± 1,0), mm, not less||40||40||40||40|
|4. Space between bushes (N ± 1,0), mm, not more||300||300||300||300|
|5. Space between end bushes (Ê ± 1,5), mm, not more||3520*||4720*||5920*||7120*|
|6. Joists test load, kN||21,4||32,4||45,6||62,0|
|7. Maximum test load joist deflection, mm||12,0||16,0||20,0||24,0|
|8. 1 running meter joist weight, kg, not more||14,0||21,7||31,4||42,5|
We can produce longer joists by customer’s request.
We can waterproof, fireproof (acc. to construction norms and regulations 21-01-97) and treat the wooden plates with antiseptic (acc. to construction norms and regulations 2.03.11. p. 3 and 5) by customer’s request.
Types of wood-and-metal joists