I`m NO EXPERT but the norm for 15` bays seems to be 7x3 and with a fall like that I`d not want less than 7x3 in case you are unlucky with a lot of snow at some point.Are 6x3 timbers ok?
I`m NO EXPERT but the norm for 15` bays seems to be 7x3 and with a fall like that I`d not want less than 7x3 in case you are unlucky with a lot of snow at some point.Are 6x3 timbers ok?
I was quoted IPE 200x100x22.4kg/mtr.I built exactly what your suggesting, 45long in 3 bays, 20 ft deep, 11ft low side 13ft high side. 8x4 uprights, and 7x4 rafters. 7x3 Purlins and full length box profile roof sheets. Been up 6 years now, had a good snow load to test it in 2018 and its still there.
Is that a better/stronger way of bolting rafter and upright asIs it an actual lean to or a mono pitch building you’re planning? I made and built a mono pitch one here two years ago. 7m deep due to beams available as 14m. 8foot high at low point (to match up to a container) and nearly 13foot at highest point. Was 10degree pitch. 203*102*23 UB for rafters and columns due to easier to use same lengths and used 178*102*19 for gable posts and doorway. 7*3 perlins at full length of 4.8m as it was easier. Roof though are full length box section sheets that we had. View attachment 923559View attachment 923562
will correct to my earlier post.I was quoted IPE 200x100x22.4kg/mtr.
Last piece of the puzzle is this the right thickness rail ?????
Me being of dubious education, my neighbour said I was thick for putting the "nails" in the cleavage, rather than the tit, but that was the advice given. Coming from a background where grandfather would mend leaky galv tanks with a bolt and two bits of welly I concluded the theory is correct, I guess the force that they are screwed in at helps them seal. Time will only tell on the perishing bit.Would folks trust the Tec screw holes not to leak on shallow pitches ? I was told to screw them through the troughs rather than the ridges ( box profile ). Didn't like doing it. Washers will perish eventually ?
in my experience the "dowty" washers in the valleys on the box profile sheets on my lean to have all been fine and not leaked, also the hill in the profile is not strong enough to support itself if a screw were put in it.Being of dubious education, my neighbour said I was thick for putting the "nails" in the cleavage, rather than the tit, but that was the advice given. Coming from a background where grandfather would mend leaky galv tanks with a bolt and two bits of welly I concluded the theory is correct, I guess the force that they are screwed in at helps them seal. Time will only tell on the perishing bit.
Yep, plus its quick and easy, we did one of those farmplus sheds a few years back for some horse folk, the box profile had 4inch nails and spats with the instructions, nail through on the high side. Had to drill holes for them first, and nail down softly as the tin would just crumple. Quite a ballache.in my experience the "dowty" washers in the valleys on the box profile sheets on my lean to have all been fine and not leaked, also the hill in the profile is not strong enough to support itself if a screw were put in it.
Is that a better/stronger way of bolting rafter and upright as
opposed to bolting the rafters on top of the upright?
I’m after doing a 30’ lean to with 7x4 rsj and 2’6” pitch no need for middle rsj but we don’t get much snow hereRight lads this is the locked down dimensions. 7.6 x 9.1. Have it up to 10degree pitch. My last worry is the centre beam at a 25ft span. Planning on ip200x100x22.5. I am going to drop 100x100 on wall sides to halve them spans. And gusset the centre span hopefully shorten it to 18ft. What so people think ???View attachment 926018
Just get the long ones for roof sheets and put them through the ridgesWould folks trust the Tec screw holes not to leak on shallow pitches ? I was told to screw them through the troughs rather than the ridges ( box profile ). Didn't like doing it. Washers will perish eventually ?
As below. Thanks in advance
That's a fine shedI built exactly what your suggesting, 45long in 3 bays, 20 ft deep, 11ft low side 13ft high side. 8x4 uprights, and 7x4 rafters. 7x3 Purlins and full length box profile roof sheets. Been up 6 years now, had a good snow load to test it in 2018 and its still there.