Estimate Includes: 8" x 48" Concrete Piers 2" x 8 " Beam System 2" x 8" Frame 5/4" x 6" Decking 5/4" x 6" Vertical Handrails 36" Steps (Up to 24" Height) Enter Length & Width below and press Calculate to use this form. Enter Length: Enter Width: Total Sq.ft : Total Est. :