ROOF TRUSS SYSTEM
Harris Lumber provides trusses for our builder partners using proven manufacturers for the correct application and competitive pricing. From the simple roof to the most complex roof system with spectacular open ceilings. The Designers can engineer the trusses to fit the project. They will design/engineer trusses with long spans to give you large open spaces. Trusses are designed/engineered at usual 24″ on center, although unusual OR load considerations may require different spacing. Custom roof trusses can be designed/engineered to support a variety of roof finish materials. To meet your energy efficiency concerns, they can raise the truss heel height (typically 7″ to 12″) to allow for full insulation depth at the exterior walls.

FLOOR TRUSS SYSTEM
Floor trusses can often be designed/engineered to clear span distances greater than those available with solid joist system and dimensional lumber. Floor trusses allow larger open spaces and reduces or eliminates the need for bearing walls or beams.

• Mechanical Chases are built into the trusses to handle HVAC, plumbing and electrical runs. Engineered for strength and performance.
• Bearing (bottom cord or top cord) vary from project to project. Trusses are marked for easy placement. Spacing and location of strong backs may vary from project to project depending on the projects conditions.
• Floor girders are engineered to carry other loads where bearing points are not available. Connectors are engineered and used to meet code. Multiple ply trusses are connected in the environmentally controlled plant.
• Trusses are labeled in the manufacturing center with identifier, banded and ready for quick, on time delivery. The truss packet includes truss drawings, placement diagram, and installation instructions. All delivered with the trusses to the job site. Stamped engineered drawings are sent directly to the architect.

TALL WALLS
We will engineer and supply all lumber/structural connector for the designed tall wall. These will be designed/engineered to meet state/local building codes. Tall walls may use a combination of the following: LVL studs, LVL headers, specific species of lumber (Douglas fir) and lumber grade (MSR – Machine Stress Rated, #1 SPF or #2 or better SPF (spruce, pine, fir).

WALL PANEL SYSTEM (16% COST SAVINGS - Wood Truss Council of America)

• Use of lumber more efficienct, you receive greater value from each piece of lumber.
• Controlled Environment of a manufacturing center is much more efficient because the plant can operate everyday regardless of weather.
• Controlled scheduling allows components to arrive on site when the framing crew is ready.
• Less labor is involved in job site assembly, so roofs, floors and walls are installed in a fraction of the time.
• Components do not contribute to waste on the job site, clean up is quicker. And theft is dramatically reduced.
• Most importantly, components have high structural reliability engineered to last a lifetime.

In 1996 the Wood Truss Council of America, in cooperation with the Building Systems Council of NAHB, sponsored the Framing the American Dream® project.

The project was the first time two identical house plans were completely framed using two different methods- one stick built and the other with wood trusses and wall panels (components). Here is what they learned:

STICK COMPONENTS SAVINGS MAN HOURS TO ERECT 401* 148* 253 MAN HOUR COST $20/HOUR FOR LABOR (COMPONENTS USED CRANE $500) $8,020 $3,460 $4,560 TOTAL BD. FT. LUMBER (SHEATHING SAME FOR BOTH) 20,400 15,100 5,300 COST OF MATERIALS $12,928 $14,457 $-1,529 SCRAP GENERATED (YARDS) 17 4 13 SCRAP COST $15/YD DUMPSTER COST AND LABOR TO PICK UP $425 $100 $325 TOTAL COST TO FRAME THIS 2600 SQ. FT. HOUSE $21,373 $18,017 $3,356

Use of wall panels and trusses resulted in a 16% savings in total labor and materials costs. Apply local lumber, labor and dumpster costs to make your areas cost comparisons.

*Number includes time for daily clean-up an scrap pick-up Copyright© 1996-2003 Wood Truss Council of America

 

 

HARRIS LUMBER – Delivering Construction Solutions since 1952