As for weight, i won't be putting more than 4 panniers on it, difficult to carry all those panniers on a bike, i did that on my john o'groats trip, but not that heavy in mass weight for the trailer.The whole thing is geared around essentially being a bed. I reckon this trailer will end up weighing 50 lbs with nothing on it. And i do have the possibility of making the wheels quick release so that the entire trailer can lay at near ground level.If i don't do it that way i will make foldable legs to steady the trailer for sleeping,the wheel is just beyond the middle of the trailer if looked upon as a 6 1/2 ft base unit.[see photos]. http://s270.photobuc...ailer%20photos/ I can see advantages in day to day use of making it strong to carry around the odd heavy item locally.Shopping for instance. I have plans to cycle to Gibraltar, it is then i would need this type of trailer.As i'd be doing many days wild camping.With the trailer all i'd need is tree cover and push the trailer into that area to camp.No more messing around with finding the ideal type of ground to put a tent on.Sometimes i walk around for ages trying to find a good spot for camping, and it is often in total darkness at the end of a days cycling. There is a link above to photos i took today of the work in progress, i've got some bolt trimming to do on the ladder section, and you can see the notches i'm sawing out to fit the cycle frame into, they are not quite finished yet, you can also see just how far back the wheel wil be in the 4 ft plywood, with another section to be added to that end later. Both forks are almost finished, one fork is a bit bigger than the other, which i'll need to get round.And i'll remove the disk brake mechanism from the chunkier of the forks.