Stock glulam beams have standardized characteristics such as section size, camber, appearance
and strength. These glulams are inventoried at local wholesale and dealer yards for immediate
shipment to jobsite. Specifying stock beams that are available from local inventories are cost
effective and will eliminate long custom lead times.
- 3-1/2″, 5-1/2″, 6-3/4″, 8-3/4″
- Conventional depths 6” to 24” in1-1/2″ increments as well as I-Joist compatible
depths 9.5”, 11.875”, 14”, 16”, 18”
Because most residential and light commercial applications require little or no camber X-Beam
is manufactured with a slight 5000 foot radius. There is virtually no camber in beams with length
up to 18 foot.
Multi-Span and Cantilever Beams
It is a common misconception that 24f-V4 unbalanced beams cannot be used in multi-span or
Stock 24f-V4 unbalanced glulam can be used for most residential applications where the
cantilever length is relatively short. As a rule of thumb, uniformly loaded cantilever overhangs
up to 20% of the main span can be accommodated using an unbalanced beam from local
inventories with no special order V-8 layup required. For example; a member with a 20 foot
span that is uniformly loaded would permit a 4’ overhang. For longer length cantilevers that
exceed the 20% of the main span rule, it may be necessary to custom order a 24f-V8 beam.
Designs can be checked with isDesign software to confirm that an unbalanced beam will work in a specific multi span or cantilever condition.
A standard 24f-V4 beam can be used in many residential multi-span applications. Designs can be
checked with isDesign software.
Rosboro’s X-Beam glulam is supported by isDesign Software. This software allows users to
easily enter the span and load conditions for a given project and the software will calculate
simple spans, multiple spans, point loads, cantilevers, and other applications. It recognizes all
United States building codes and offers printable design calculations and beam capacities.
Click here to get a free isDesign license and installation information.
Custom beams can be ordered in just about any size or shape and in many different species and
appearances. Custom lead times run between 2 and 5 weeks depending on the complexity of the
order and current market conditions.
1. Values fb=2400, Fv = 265, MOE = 1.8 absolute or 1.9 true (reference table in stock
glulam specification flyer)
2. Camber table 5000’R (reference table in stock glulam specification flyer)
3. Photo of beams in Yard
4. Click here for stock X-Beam specification
5. Click here for X-Beam inventory sizes