https://community.graphisoft.com/t5/Modeling/preference-accuracy/m-p/93540#M48964 I think it is usually enough to set 2 for decimals (that will be centimeters). In this case you don't need extra accuracy. You usually use extra accuracy, when you need nigher accuracy than is available by setting the highest value in for Decimals. <BR /> 2 for decimals should be fine for areas and volumes as well, also for angles.<BR /> Set it this way, create some lists, and see if it is enough for your purposes. If not set decimals a step higher. Thu, 05 Aug 2004 09:03:06 GMT Laszlo Nagy 2004-08-05T09:03:06Z https://community.graphisoft.com/t5/Modeling/preference-accuracy/m-p/93539#M48963 <DIV class="actalk-migrated-content"><T>can anyone please tell me what the accuracy should be and what is that?</T></DIV><BR /><IMG src="http://community.graphisoft.com/t5/image/serverpage/image-id/72179i86E177E6AD613953/image-size/large?v=v2&amp;px=999" border="0" alt="pref.gif" title="pref.gif" /> Wed, 04 Aug 2004 23:05:15 GMT https://community.graphisoft.com/t5/Modeling/preference-accuracy/m-p/93539#M48963 Anonymous 2004-08-04T23:05:15Z https://community.graphisoft.com/t5/Modeling/preference-accuracy/m-p/93540#M48964 I think it is usually enough to set 2 for decimals (that will be centimeters). In this case you don't need extra accuracy. You usually use extra accuracy, when you need nigher accuracy than is available by setting the highest value in for Decimals. <BR /> 2 for decimals should be fine for areas and volumes as well, also for angles.<BR /> Set it this way, create some lists, and see if it is enough for your purposes. If not set decimals a step higher. Thu, 05 Aug 2004 09:03:06 GMT https://community.graphisoft.com/t5/Modeling/preference-accuracy/m-p/93540#M48964 Laszlo Nagy 2004-08-05T09:03:06Z