1 Floor Joists

2 grade of douglas fir are indicated below.

1 floor joists.

Click to add item 3 1 2 x 14 i joist 90 series to the compare list compare click to add item 3 1 2 x 14 i joist 90 series to the compare list add to list click to add item 3 1 2 x 14 i joist 90 series to your list. If you can feel the floor in one room sagging or even bowing upward a joist could be to blame according to the international association of certified home inspectors. Maximum floor joist span for no. Live load is weight of furniture wind snow and more.

This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction. If you aren t quite sure if the floor dips or bows set a marble or a small ball on the floor near one corner of the room. Dead load weight of structure and fixed loads 10 lbs ft 2. Oncenter bli 60 wood i joist 11 875 in x 2 5 in x 44 ft.

These are the right choice for both residential and non residential floor and roof joist construction. I joists provide a high performance alternative to dimension lumber joists for floor and roof applications. The easiest way to tell that your floor may have joist problems is to simply walk across it.