The rails and rail support
The rails on which the roof runs are 75mm x 75mm softwood timber. They need to be slightly
over twice the length of the shed or roof section. You may want to make them even longer so that the roof
section moves well away from the back of the shed. Each one is placed on top of the side wall top frame
member and screwed to it with 6x100mm TurboGold screws (Screwfix 7988) from on top and from underneath. I
let those screwed down through the rail into the frame drill themselves down about 2cm so that they were
fully screwed into the top frame member beneath the rail and I filled the resulting hole above them with
wood filler. Unfortunately, 100mm is the longest TurboGold screw.
The rails and rail support
The rails sit on the same 75mm x 75mm timber posts embedded in concrete. The end brace is
screwed down on top of the rails and acts as a stop for the shed so it doesn't roll off! The diagonal
cross brace is a piece of the 47mm x 75mm timber I used for the shed frame. Again, long TurboGold screws
were used.
Rail support detail
Some 60mm x 40mm x 63mm heavy duty angle brackets (Screwfix 2047) were fixed with M8x50
coach screws (Screwfix 3809) and TurboGold screws for good measure under the rails and end brace. You'll
need to make sure that the rails are the same distance apart at the front of the shed, in the middle where
they leave the shed and at the end on the supports. Don't rely on the wood being straight! When the
concrete was set it was all very solid.
The shed section complete with frame, rails and rail support
And there it is, all finished. I was pretty pleased with myself at this stage but I knew
that this was the easy bit. The roof had to be built on a wooden frame, wheels fitted and it all had to
fit on the shed and rails and run straight.
|
