Eco beams /floor joists

After listening to the pros and cons of eco beams from  many builders and joiners, we have decided to use eco beams as an alternative to the standard floor joists cut on site.  We believe the advantage will be less movement in the floor, therefore less creeks and labour saving at the plumbing and electric stage- well keep you informed if this happens! The garage (which has become our home for the past 5 years) has been our trial build - We had 4 quotes and have not choosen the cheapest, for various reasons: space, materials, design/supply time -We have opted for the beams with metal between at 400mm spaces at a span of 4720 -movement should be limited.