Special note to Netscape 4.XX users!!

	Online Span Calculators Performs calculations for ALL species and grades of commercially available softwood and hardwood lumber as found in the NDS 2005 Supplement. Joists and rafter spans for common loading conditions can be determined. A "span options" calculator allows selection of multiple species and grades for comparison purposes. Click on the SPAN icon to the left.
	Online Connections Calculator Provides users with a web-based approach to calculating capacities for single bolts, nails, lag screws and wood screws per the 2005 NDS. Both lateral (single and double shear) and withdrawal capacities can be determined. Wood-to-wood, wood-to-concrete, and wood-to-steel connections are possible. Click on the Connect icon to the left.
	Online Heights and Areas (H&A) Calculator Provides users with a web-based approach to calculating maximum heights and areas for buildings of various occupancies and fire protection based on 2006 IBC provisions. Input a given building, and allowable construction types are determined. Calculator limits building input to a single occupancy for the entire building. For multi-story buildings, maximum single floor area can be any size up to total building floor area. Help File for understanding calculator background calculations and terms, with worked examples, is available. Click on the H&A icon to the left.

Learn more about IBC height and area provisions and see a demo of the H& A Calculator here.