GeneDavis Posted September 1, 2016 Share Posted September 1, 2016 My dilemma is this. I had to put an octagonal "silo" feature on a barn per the client's request, and I used CAD to guide me, drawing an octagon with 4'0" sides. Now I have the whole thing built, framing included, and it is time to dimension for layout. I go auto dimension and the plan is full of dimensions to the 1/16". Having built houses and never having seen plans done to the sixteenth, I wonder what to do. Is this just the nature of bay and polygons in plans drawing? Do the builders complain, or just work it out? Link to comment Share on other sites More sharing options...
Chopsaw Posted September 2, 2016 Share Posted September 2, 2016 You can round off the dimensions if you like but it would be better to give the drawings to a builder with a sharp pencil if it is to be built correctly. Maybe you don't need to include all the dimensions. Link to comment Share on other sites More sharing options...
chief58 Posted September 2, 2016 Share Posted September 2, 2016 Wouldn't all your sides be 4'-0" which would make those dimensions in that manner or am I missing something Link to comment Share on other sites More sharing options...
lbuttery Posted September 2, 2016 Share Posted September 2, 2016 Gene: I would do these to the best of my ability - get frustrated and send them to my partner to "fix" in a case like this you "probably" should be able to get all sides to 4' exactly if not, setting one to round to the nearest 1" would "probably" be ok as the builder should use the stated dim and not try to scale from the drawing but if it's a "critical" area ??? Lew Link to comment Share on other sites More sharing options...
GeneDavis Posted September 2, 2016 Author Share Posted September 2, 2016 Here's how it looks on the plan now. Link to comment Share on other sites More sharing options...
Chopsaw Posted September 2, 2016 Share Posted September 2, 2016 I think that looks fine but if you were to give the 9' 7 7/8" overall would you need the 2' 9 15/16" dimensions 4x ? And maybe extend your center lines back towards the side walls with a dashed line style. Link to comment Share on other sites More sharing options...
lbuttery Posted September 2, 2016 Share Posted September 2, 2016 Gene: I saw this type of situation many times my partner Joe was able to fix them every time I couldn't - but he could for me it was like pushing Jello I'd send him the plan and a few minutes later - done Lew Link to comment Share on other sites More sharing options...
Solution dshall Posted September 2, 2016 Solution Share Posted September 2, 2016 You might try changing the dimensioning format as shown: Link to comment Share on other sites More sharing options...
joey_martin Posted September 2, 2016 Share Posted September 2, 2016 If it were my plan, I would give them the length of each side and the interior angle that they would use to cut the mitres...I would leave the others off as that dim isn't important in the construction. Sides and angles. Link to comment Share on other sites More sharing options...
dshall Posted September 2, 2016 Share Posted September 2, 2016 ...I would leave the others off as that dim isn't important in the construction. Sides and angles. I disagree, the extra dimensions are a part of laying out the foundation.... they are also a part of the overall dimensions. Link to comment Share on other sites More sharing options...
MPDesign Posted September 2, 2016 Share Posted September 2, 2016 How about dimensions that look like this. It would work for both framing and foundation. Link to comment Share on other sites More sharing options...
joey_martin Posted September 2, 2016 Share Posted September 2, 2016 Michael shows the way I would handle it. Sides and angles. Link to comment Share on other sites More sharing options...
GeneDavis Posted September 2, 2016 Author Share Posted September 2, 2016 Thanks, Scott. What I did was select only the dimensions or strings that had the 1/16" accuracy, and changed the format to only go as fine as 1/8". What happened is as shown here. Only the mathematicians in the foundation-building crew or the framing crew would say that it is wrong. Doing an octagon in a 9'-8" square results in sides that are about 1/32" longer than 4'-0". Link to comment Share on other sites More sharing options...
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