Span 4 Concrete Floor Unsupported

Let s expand our house beyond that 17 2 span capability to 24 feet wide. Traditionally column spacings and floor spans in these buildings have been in the range of 6 to 9 metres to both contain costs and simplify construction. Support and span limits for a concrete top a discussion of table design involving issues of wood deflection and concrete span capability.

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The top will be 2 concrete and lower shelf will be holding 400lbs.

Span 4 concrete floor unsupported. Question i am building a four post workbench type caster table with a 65 span. Normally used for spans of 4 10 with slabs of 4 8 of concrete and are used to create a composite action between the steel concrete. Shorten the span maybe to 5 and put them 12 oc or like mac said 4 16 oc. If you use awc calculator 2x4 can span 6 2 with l360 deflection for decks 40lb ll.

All floor joist tables start with 2x6 lumber. However recently there is a preference for large floor areas with column free space and spans. 1 1 2 deep composite floor deck panels are primarily used for pouring concrete slabs. So the house dimensions will now be 24 x 13.

I personally think it will be a bouncy floor. The widest span in the floor joist span table in part 2 of this tutorial module showed that floor joists can span 17 2 if they are 2 x 12s spaced 12 o c.