UL Designs & Thickness — Roof Assemblies


Click here for Floor Assemblies and Columns

      Unrestrained Beam Thickness Tables  Restrained Beam Thickness Tables  
  DescriptionUL LinkUL PDFCAD DrawingAllMK6GFZ106HYAllMK6GFZ106HY  
 
Protected Roof/Ceiling ​
            
  Polystyrene Board (IRMA System)UL P714PDFDWGP714 Unres AllP714 Unres MK6GFP714 Unres Z106HYNANANA  
  Polystyrene Board UL P725PDFDWGP725 Unres AllP725 Unres MK6GFP725 Unres Z106HYNANANA  
  Polyisocyanurate BoardUL P732PDFDWGP732 Unres AllP732 Unres MK6GFP732 Unres Z106HYNANANA  
  Polyurethane Foamed PlasticUL P733PDFDWGP733 Unres AllP733 Unres MK6GFP733 Unres Z106HYNANANA  
  Mineral and Fiber BoardUL P740NANAP740 Unres AllP740 Unres MK6GFP740 Unres Z106HYNANANA  
 
Beam Protected Roof Substitution 
            
 
 
Beam Supporting Fluted DeckingUL S734PDFDWGS734 Unres AllS734 Unres MK6GFS734 Unres Z106HYS734 Res AllS734 Res MK6GFS734 Res Z106HY  
  Joist Only Design for Roof Assemblies UL S728PDFDWGNANANANANANA  
 Non-Load RestrictedJoist Only Design for Roof AssembliesUL S749PDFNANANANANANANA  
 Non-Load RestrictedBeam Only Design for Roof AssembliesUL S750PDFNAS750 Unres AllS750 Unres MK6GFS750 Unres Z106HYS750 Res AllS750 Res MK6GFS750 Res Z106HY  
              
 
Unprotected Roof/Ceiling
            
  Insulating ConcreteUL P936PDFDWGP936 Unres AllP936 Unres MK6GFP936 Unres Z106HYNANANA  
              
 
Beam Unprotected Roof Substitution
            
  Beam Supporting Fluted DeckingUL S735PDFDWGS735 Unres AllS735 Unres MK6GFS735 Unres Z106HYS735 Res AllS735 Res MK6GFS735 Res Z106HY  
 
Click Here for explanation of Future Floors
  
 
Tube & Pipe Columns 
            
 Non-Load RestrictedSquareUL Y710PDFDWGY710 AllY710 MK6GFY710 Z106HYNANANA  
 Non-Load RestrictedRectangleUL Y710PDFDWGY710 AllY710 MK6GFY710 Z106HYNANANA  
 Non-Load RestrictedRoundUL Y710PDFDWGY710 AllY710 MK6GFY710 Z106HYNANANA  
 Non-Load RestrictedSquare - High Durability OnlyUL X795PDFDWGX795 AllNANANANANA  
 Non-Load RestrictedRectangle - High Durability OnlyUL X795PDFDWGX795 AllNANANANANA  
 Non-Load RestrictedRound - High Durability OnlyUL X795PDFDWGX795 AllNANANANANA  

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Last Updated: 2026-03-20

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