Rough green western red cedar lumber meets high grading standards for strength and appearance easy to cut fasten and paint perfect for many building projects. Western red cedar engineering data including formulas design values span tables size factors wet use factors duration of load adjustment and coverage tables.
Western Red Cedar Engineering Data Real Cedar
4×4 Quattro Cedar Posts Terminal
Is the end attached to the floor.
4×4 cedar post load capacity. How much weight can a 4×4 8 ft. Cedar is more rot resistant than almost any other untreated wood. Replacing porch columns with the cedar posts.
Too many decks have had this happen in the last 10 15 years all over so current codes will not allow 4×4 posts to be used for supporting a deck their only rated to be used for hand rail posts. Its use is being replaced by pressure treated. The purple heart wood is far more rot resistant than the outer wood.
In any case 30 kips is a substantial load to be supported by a 6×6 wood post. Building a deck with hot tub on top. What frames on top of the post.
If the load is. A short 4×4 can carry an awfully big load and many deck builders use 6×6 posts as a standard regardless of the height or load of the deck. Post heights are based on standard precut stud heights and associated top plate heights.
Though the height of a deck is often questioned only in regard to the requirement for guards it is a factor in determining the height or span of the posts. For other combined loads eg snow and dead load see text for further details. Like gb stated the post can buckle under excessive load or if its an exterior post it can snap from deflecting do to wind load.
How have you determined the 30000 lb load. Four posts should safely be able to support 10000 pounds. Is the construction new.
Note that the size factor adjustment c f should not be included in the allowable stress value entered as it is already included in the calculations for each column size. Is the load centric. Shaded values are limited by the perpendicular to grain bearing load p c when posts bear on wood sill.
You must remember that this situation describes a load applied evenly and entirely to the top of the 4×4. Effective post lengths l e are the actual wall height minus the thickness of 3 2x plates 4 12. The duration of load factor c d for common proportions of dead and live loads is 10.
Wall height is nominal height plus 1 18. Boo1 mechanical 3 dec 02 1156. How much does the rest of your deck weigh.
When an undersized post is compressed. Anyone have the approximate load bearing capacity of cedar 8x8s. I live in rural tennessee where cedar logs are traditionally used for corner fence posts and pole barns.
Maher owner southern yankee home services. Long take standing uprite. The posts will be supporting the porch roof overhang so i dont see a problem with the load.
I think a 4×4 spf post can handle 10k lbs so you should be good.
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