Residential Products
Durapine Laminated Columns
There's a welcome alternative to columns made from solid timbers -
laminated timber columns made from high-grade pressure-treated lumber.
Traditional timber columns are prone to warping and cracking in a short
period of time after installation. This can be exasperating to both the
homeowner and builder.
Laminated timber columns by Cox are lighter, easier to handle, and much
less likely to twist than
solid traditional columns, and they have the
handsome appearance of veneer-encased timbers without requiring the extra
construction time.
Cox laminated timber columns are available in cross-sections from 4x4 to
12x12. They are also available in two different styles of turned post in 5"
and 6" sizes.
With Cox laminated timber columns you get:
- Top grade lumber: #1 and better
- Efficient, built-up configuration
- Made from Wolmanized pressure-treated wood
- Re-dried after treatment
These features translate into significant benefits:
- Attractive appearance
- Won't twist and no gaping cracks
- Lighter in weight
- Ready fro installation
- Hollow core allows for enhanced structural
capability or concealed wiring
- Lifetime limited warranty against damage from
termites and fungal decay
- Can be painted, stained or coated without delay
- Significantly greater load-carrying capacity than solid timbers for
dimensions exceeding 5x5
Laminated vs. Solid Columns
Cox laminated columns are made from southern pine components and joined with
waterproof Resorcinol adhesive by a proprietary system. Solid timbers, as
they dry out, will twist and often develop unsightly cracks.
Laminated Columns Strength Properties Confirmed
A summary of the results of 11 axial load tests, 18 flexural tests, and 12
axial squash load tests (conducted on Southern Pine columns produced by Cox
Wood Preserving) were reported in "Structural Characteristics of Built-up
Timber Columns," published in the June 2000 issue of the Journal of
Architectural Engineering.
Calculations of the allowable design capacities of the tested species
were conducted according to specifications provided in the 1991 National
Design Specifications for Wood Construction (NDS). The primary
conclusion drawn from a comparison of the design calculations and the
experimental results is that the hollow built-up sections tested may be
considered as "solid columns" as prescribed by the NDS.
- New Orleans Style Columns
- Colonial Style Columns
Column Lengths
- 5x5 - 8' and 10'
- 6x6 - 8' and 10'
Column
Design Loads
DuraPine Warranty
Engineering Report
Laminated Timber Column Brochure
Test Data on our Laminated Columns