Hi There, I am looking to build a loft floor in my garage for dead weight, I have copied a thread with great details and am wondering if someone has any pictures that may help as well. Thanks

" I would be real careful suspending any considerable weight from the roof rafters. Truses are built with"stressed Lumber" They are trussed with a camber in them for diflection outward for support for shingles and snowlaods. You should nail your band lumber right aganist the exposed wall first then drywall above and below it. To run my joist , joist hangers is quick and easy. Now there is a "live load "floor and a "dead load" you have a dead load ( storage) If sounds like you are using 2x6 at 24o.c. To either save money or head height. The min o.c. For basic joist is 16 o.c. Now you are very undersized in joist thickness. Standard would be a 2x10 16 oc that's the safest. You say approx 1600 lb 1/2 ply. Is the load spread out evenly. Your outside joist needs to be doubled up and at least a 2x10 even though the joist are smaller in height. Braces between the joist is fine but that not the big issue here. Put 2x10 joist in st 16.oc or 2x8 12"o.c. See how this steps down for load. 2x6 is a no no at 24"oc. You need to give also more thought on the band with that's not supported like the back of the joist that's nailed into the other two walls. This band needs to be doubled up to carry the load from corner and a post at the one corner is s a must and not the rafters. If you only use one post. That outside band should be doubled 2x10 to carry the joist. The joist can be smaller but the bad carrys half of the loft floor and weight. Now anthor way is to do an angled loft from corner to corner. This works great in my shop and has no posts. To do that you do need to order or get longer band lumber. Ie 2x12 20 or 20 feet long and double that up. St the ends put a post to carry the load not just the nails that are nailed in the side tothe other bands that are aganist the stud walls. Basic rule of thumb 200 lb dead load for 2x10 16oc 3/4 sheetinf. The thicker sheeting also transfers the load to its sister joist so they can help carry the load. I am not an engineer nut I have been building for 28 years. Happy holidays. "

Where do you live, you would need a permit in most places.

Thanks for responding although I was able to receive the information I required. Have a good day.

I can still help but your location is a starting point since codes vary from place to place.