Appendix 2-6 for COMPRESS Appendix 2-6 for COMPRESS MecEngSelli (Mechanical) (OP) 25 Jan 16 12:59 Good morning, I designed a flange where the bolt's exceed the spacing of 2db + t, in this case, following Apendix 2-6 i need to apply equation 7. Where can i find this option in Compress? Thank you! RE: Appendix 2-6 for COMPRESS D2HANDLE (Mechanical) 27 Jun 16 01:35 This option is available in the flange design wizard of Compress. Just check the box for "Enforce maximum bolt spacing and apply bolt spacing correction factor". Regards, D2HANDLE [Post Deleted] RE: Appendix 2-6 for COMPRESS Mech2325 (Mechanical) 28 Jun 16 04:37 MecEngSelli: This is available in "set mode options" , General 1 , Appendix 2 flange calculations at the bottom. But, this is referring to equation 3. The one you are talking about is only "2a + t". While the one in equation (3) is "2a + 6t/m+0.5 " . The "2a + t" is a mandatory code requirement and COMPRESS should be looking for it automatically while the one in equation (3) is an optional requirement and hence it is left upon user to decide whether he wishes to impose it or not.