average cost of attic trusses
1 The costs of attic trusses vary depending on the type of design and length. 2  On average, plan on spending about $100 to $125 per truss.3  This is going to be for the material only and wonât include professional installation. 4  On Gardenweb.com, a user stated that he paid $104 for a 30-foot wide truss. You need to factor in the shipping and handling cost and transportation costs of the attic trusses. 2  Professional installation will not be included. 3  The labor costs will depend on if itâs a partial or complete roof replacement. 4  On average, projects can cost more than $200 per hour to install trusses.