How Wide Are Roof Truss Cords

62 red h truss with wall tie.

How wide are roof truss cords.

Keep in mind that the higher the pitch the steeper the roof. These steel joints are needed to support the overall truss. The rise will be the elevation change over the 12 inches. Removal has left them extremely vulnerable to collapse due to spreading especially under snow loads but also under just the load of the roof itself.

The run or the base number is 12 inches. Most economical when the difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch. Box 177 la crescent mn 55947 507 895 8400. 76 3 wide chords or cap plates on double cord trusses.

The more complex the truss framework is the greater quantity of these joints will be required. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. Trusses also include reinforcing members between the top and bottom chords to add strength to the truss. 97kb dwg download dwg.

117kb pdf download pdf. 500 sycamore street p o. The same thing is true for the bridge of the truss. Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches.

115kb pdf download pdf. 71kb dwg download dwg. For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically. Red w truss ton chord bearing lateral no notch clip 77kb dwg download dwg.

Those trusses were engineered with a heavy critical dependency on the bottom chords which are in tension. Although the standard spacing of roof trusses may be the same as that of rafters with 24 inch spacing being a. 75 red m and red h trusses.