Attic Truss Weight Capacity

36 wide pull down attic stairs.

Attic truss weight capacity.

Dead load weight of roof trusses top chord bottom chord webs weight per lineal foot plf 2x4 2x4 2x4 4 3 2x4 2x8 2x4 5 6 2x6 2x4 2x4 4 8 2x6 2x6 2x4 5 5 2x6 2x6 2x6 6 2 2x6 2x8 2x4 5 9 2x6 2x10 2x4 6 6 2x6 2x10 2x6 7 2 2x8 2x8 2x4 6 6 2x8 2x8 2x6 7 2 2x8 2x10 2x8 8 4 dead load weight of floor trusses depth in inches top chord bottom chord. A roof truss is a triangular wood structure that is engineered to hold up much of the weight of the rest of the roof. This goes for manufactured roof trusses the kind assembled with metal gussets if you have traditional site built roof framing your storage capacity depends on the design of the framing. A typical load is 5 and 10 pounds per square foot.

My truss weight table per single truss. Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 bottom chord 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2 12 24 24 33 27 27 37 31 31 43 33 33 46 2 5 12 29 29 39 33 33 45 37 38 52 39 40 55 3 12 34 34 46 37 39 53 40 44 60 43 46 64. Where is the attic in summertime saga. Regardless of truss span or truss weight use common sense when lifting the trusses into place.

The straight lengths of wood known as members that roof trusses built with are connected with intersections that distribute the weight evenly down the length of each member. Make sure items are spaced so that the weight is evenly distributed over the chords. Truss capacity is listed by pounds per square foot based on the following load rating criteria. If the total weight exceeds the load limit of the truss then the truss is compromised.

Top chord live load snow and other temporary loads top chord dead load roofing materials weight of the truss itself other permanent items attached to the roof bottom chord live load storage or living space and bottom chord dead load. Balcony grills design in philippines. The truss is a framework consisting of rafters posts and struts which supports your roof. All weight hanging from the truss has to be added to the existing dead load.

24 truss 120 150 30 160 200 36 220 300 40 270 350 50 375 500 60 450 600 70 600 800 80 800 1000. Increasing the total weight on the floor to 4 480 pounds however results in a live load of 40 psf which is beyond the floor s load capacity. With an evenly distributed live load of 30 psf which the tables show the floor is able to support the total weight on the floor would be about 3 360 pounds. Attic truss weight capacity.

Master flow attic fan thermostat wiring diagram. Be careful and your roof system will perform admirably for generations. The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions.