What are the length dimensions of a full size bed slat

Hi, 163969!

I'm sorry that no one has yet come along to address your question! The answer to that may very well depend on the country where the bed is made.

If you're meaning the measurements from side to side for slats that go underneath a mattress, then some standard sizes for a mattress can be found via clicking on the following link. The slats would normally be the same length as the width of the mattress.

Bed - Wikipedia, the free encyclopedia

Thanks!