snipe
Member
- Location
- west yorkshire
Just putting a second hand lean to up. On some of our new sheds the Z purlins fit in to a sleeve that sticks out about 2 foot each side of the rafter. Is that needed or can I put my z purlins straight onto the rafter(20ft span bays). Also the sag bars on a shed with an apex pull against each other, on a mono pitch lean to how do you stop the sag?