privacy fences - 6ft vs 8ft - AnandTech Forums.19 Mar 2015 . oh, and on the sides of the house, the fence is 6 feet. as it makes the 90 degree turn towards the back, over the first 7 or 8 ft panel, it transitions from 6 to 8 .. I don't think it's a good material to have at lengths over 4-5ft. Wooden picket fence, it's pretty easy to fix. PVC? Nobody keeps spare 4x8 solid runs.