[timwilky]

I am actually using victorian engineering principles (over engineering) to convert what was the tiled over "gazebo" into a pucker man cave. The uprights were flimsy unbraced 4"'x4"s, (gazebo, so open to the elements, but roofed over. So no bracing put in at the time to allow open access, big mistake) that had started to lean under the weight of the roof (tiled), so replaced with wall supports of 6"x3", 3 ft apart. But I need to jack in new roof bearers for which I an using 18' lengths of 8"x2".

The problem is, I cannot put in the new principle rafters without removing the original uprights. Hence the need for a couple of acrows to take the weight of the roof whilst I remove the uprights and get the new rafters bolted onto the new wall supports.

Then it is a simple matter of cladding with stupidly thick loglap. This thing should last me a lifetime by the time it is finished, then sell the acrows on. If I ever get them. £50 for 12 was cheaper than hire for a week.