山界梁:段照大梁八折，围蔑三尺五寸。                                                 

矮柱:段照大梁，围蔑四尺四寸。                                                             

脊柱:段照山界梁，围蔑三尺五寸。                                                            

双步:段照大梁七折，围蔑三尺一寸。                                                         

川穿同:段照大梁六折，围蔑二尺六寸半。                                                        

步枋:段照步柱高加一，軿高二尺二寸照斗厚六寸。                                                

廊枋:段照廊柱高加一，如廊柱主高一丈八尺，即高一尺八寸，厚五寸四分，或八折。                      

下槛:照步枋，或廊枋，或八折。                                                            

桁条:照开间加一半，前定开间宽二丈，围蔑三尺。亦可配定加二，即四尺。                             

(三)开间一丈八尺，内四界进深二丈。                                                         

大梁:段四尺。                                                                              

步柱:段三尺六寸。                                                                        

枋子:扯高一尺八一寸，厚五寸四分。                                                     

桁条:段二尺七寸，殿用足料加九寸。                                                       

(四)开间一丈六尺，内四界进深一丈八尺。                                                     

大梁:段三尺六寸。                                                                          

步柱:段三尺二寸。                                                                       

枋子:扯高一尺六寸，厚五寸。                                                             

桁条:段二尺四寸，殿用足料加八寸。                                                           

(五)开间一丈四尺，内四界进深一丈六尺。                                                        

大梁:段三尺二寸。                                                                           

步柱:段二尺八寸。                                                                               

枋子:扯高一尺四寸，厚四寸六分。                                                        

桁条:段二尺一寸，殿用足料加七寸。                                                          

(六)开间一丈二尺，内四界深一丈四尺。                                                       

大梁:段二尺八寸，以下减折以此法为例。                                                

步柱:段二尺五寸。                                                                        

枋子:扯高一尺二寸，厚四寸二分。                                                         

桁条:段一尺八寸，殿加六寸。                                                                   

如造价及用料等情况有限制时，得按上例规定尺寸，按比例酌减自九折至六折。                          

楼房之规模较大，而于楼上下筑翻轩者，则称楼厅。楼厅构造与楼房大部相同，                      

唯因轩之地位，及贴式之变更，可列为下列数式:                                         

一、楼下轩:                                                                           

楼厅四界承重之前，其廊柱与步柱，通长至上层屋顶，而于楼下两柱间筑轩者，称为楼下轩（插图六一二），其浅在一界左右者，则用一枝香式，深在二界左右者，则用船篷、鹤