We start our buildings with 4″ x 6″ pressure treated notched skids.


Floor joists are pressure treated 2″ x 4″ , spaced 16″ on center and are set into the notched skids to prevent any twisting. 12″ on center and 2″ x 6″ floor joists upgrades are available.


Floor decking is 5/8″ inch tongue & groove plywood flooring. Thicker 3/4″ flooring is also available.

Floor Load Capacity Table

  1. psf = Pounds Per Square Foot, meaning the maximum allowable weight in a one square foot area
  2. All floor joists supported by 4×6 skids on 8ft OC max spacing. Skids are supported by concrete block piers or similar.
  3. To get Total Floor Load, multiply building square footage by figure above. Example: A 10×20 size with 20 psf would be capable of holding 4000 total pounds, spread out so as to not exceed the Point Load.
  4. Floors may be capable of supporting more but may cause sagging or settling that would not be covered under warranty
  5. Total of Point Loads may not exceed Total Floor Load
  6. Doubling the layers of floor decking will double the point load, but not the total floor load.
  7. Point loads shown are based on the allowable shear strength of the plywood floor sheathing and to minimize sagging of the floor sheathing between the floor joists.

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