https://community.graphisoft.com/t5/Modeling/SEO-Stair-in-a-MESH/m-p/52712#M26860 Stairs have often been a bit finicky with SEOs. You could try making the stairs in two runs if it's the two landings that's causing the trouble.<BR /> <BR /> Another, perhaps more tedious, way would be to cut the hole with slabs and or roofs and put them on a hidden layer. Mon, 01 Nov 2004 22:36:06 GMT Anonymous 2004-11-01T22:36:06Z https://community.graphisoft.com/t5/Modeling/SEO-Stair-in-a-MESH/m-p/52711#M26859 <DIV class="actalk-migrated-content"><T>Hello!<BR /> I am trying to trim off the upper part of a mesh from a stair, that is lying inside the mesh. With slabs, there is no problem. If I take a normal stair, no problem, but when I try it with a stair with two landing for example, Archicad doesn't trim the mesh correctly. <BR /> <BR /> I had the same problem with walls. Could anyone help me ? <BR /> <BR /> I have Archicad 8.1 on a Macintosh with MacOSX 10.3.5<BR /> <BR /> Thank you in advance !!!!</T></DIV> Thu, 25 May 2023 15:04:32 GMT https://community.graphisoft.com/t5/Modeling/SEO-Stair-in-a-MESH/m-p/52711#M26859 Anonymous 2023-05-25T15:04:32Z https://community.graphisoft.com/t5/Modeling/SEO-Stair-in-a-MESH/m-p/52712#M26860 Stairs have often been a bit finicky with SEOs. You could try making the stairs in two runs if it's the two landings that's causing the trouble.<BR /> <BR /> Another, perhaps more tedious, way would be to cut the hole with slabs and or roofs and put them on a hidden layer. Mon, 01 Nov 2004 22:36:06 GMT https://community.graphisoft.com/t5/Modeling/SEO-Stair-in-a-MESH/m-p/52712#M26860 Anonymous 2004-11-01T22:36:06Z