Post-Frame Building Width Guidelines

Sizing FootingPad for Post-Frame Buildings

Our pole barn width charts offer helpful guidelines for choosing FootingPad size based on the width of your post-frame building. Please note, these charts are only guidelines and do not replace advice from an engineer or other design professional.

How to Use These Charts

Use the column with the snow load rating in your area to determine the size FootingPad you need. If side doors larger than 8′ are used, larger footings will be needed for posts on either side of door.

Built in variables: Post spacing along side wall of 8 feet, dead load of 5 psf. If your proposed building lands in an “adjust” cell, then modify the width of your building as load capacity is too high for the largest FootingPad of 24″.

Building width guidelines for 1500 psf soil

Snow Load

Building Width5 psf10 psf15 psf20 psf25 psf30 psf35 psf40 psf
24 ft12" Dia.16" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.
28 ft12" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.Adjust
32 ft16" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjust
36 ft16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjust
40 ft16" Dia.20" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjust
44 ft16" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjust
48 ft16" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjust
52 ft16" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjust
56 ft20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjust
60 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
64 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
68 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
72 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
76 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
80 ft20" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
84 ft24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
88 ft24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
92 ft24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
96 ft24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
Pounds Per Square Foot: 1500 Dead Load (sq ft): 5 Post Spacing (ft): 8

Building width guidelines for 2000 psf soil

Snow Load

Building Width5 psf10 psf15 psf20 psf25 psf30 psf35 psf40 psf45 psf50 psf55 psf60 psf
24 ft10" Dia.16" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.24" Dia.
28 ft12" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjust
32 ft12" Dia.16" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjust
36 ft12" Dia.16" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjust
40 ft16" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
44 ft16" Dia.16" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
48 ft16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
52 ft16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
56 ft16" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
60 ft16" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
64 ft16" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
68 ft16" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
72 ft20" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
76 ft20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
80 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
84 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
88 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
92 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
96 ft20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
Pounds Per Square Foot: 2000 Dead Load (sq ft): 5 Post Spacing (ft): 8

Building width guidelines for 3000 psf soil

Snow Load

Building Width5 psf10 psf15 psf20 psf25 psf30 psf35 psf40 psf45 psf5055606570
24 ft10" Dia.10" Dia.12" Dia.16" Dia.16" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.
28 ft10" Dia.12" Dia.12" Dia.16" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.Adjust
32 ft10" Dia.12" Dia.16" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjust
36 ft10" Dia.12" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjust
40 ft10" Dia.16" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjust
44 ft12" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjust
48 ft12" Dia.16" Dia.16" Dia.20" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
52 ft12" Dia.16" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjust
56 ft12" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjust
60 ft16" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
64 ft16" Dia.16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
68 ft16" Dia.16" Dia.20" Dia.24" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
72 ft16" Dia.16" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
76 ft16" Dia.20" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
80 ft16" Dia.20" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
84 ft16" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
88 ft16" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
92 ft16" Dia.20" Dia.24" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
96 ft16" Dia.20" Dia.24" Dia.AdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjustAdjust
Pounds Per Square Foot: 2000 Dead Load (sq ft): 5 Post Spacing (ft): 8

Free Shipping in the Continental US for All Orders Over $55!

$20 Flat Rate Shipping for Orders Under $55
Shopping Cart