THE COLUMBIA
THE COLUMBIA laminated wood pavilion is octagon in design, and features a distinctively high visual 6:12 roof pitch and laminated wood columns measuring 10’ after embedment. This special structural design eliminates the need for a center support column, even in models up to the standard 70’ width. The Columbia is well suited for a variety of venues: park and recreational areas, community gathering centers, greenways, and private developments and are available in 10 standard sizes..
Columbia Specification Sheet (PDF) | Photo GallerySHELTER SIZE
The Columbia design is an octagon and the size of the shelter refers to the distance across the shelter along the hip beam line which would be: the corner to corner width. For example, a 45’ Columbia shelter measures 45’ corner to corner. Custom sizes are also available.
THE COLUMBIA PACKAGE COMPONENTS
COLUMNS:
Pressure treated, prior to gluing, laminated wood columns 13’ 9” long – to be embedded 3’ 9” in the concrete for stability. Lumber is treated prior to gluing which affords full penetration of the core of the columns. Special 4” annular nails to be “partially nailed” into the portion of the columns embedded in the concrete footings to provide improved anchorage against wind uplift.
BEAMS:
Laminated wood hip beams, perimeter beams, and the interior purlin ring beams. Steel connections and bolts that connect the beams to each other and to the columns.
ROOF DECKING:
2x6 or 2x8 (nominal sizes) #1 grade, Southern Yellow Pine wood decking, tongue and groove is nailed to the top of the beams. Galvanized nails to attach the deck to the hip beams, perimeter beams, and the purlins.
NAILERS:
2 x 2 nominal nailers to be attached (nailed) to the roof deck at the eave. The fascia is nailed to the deck and the nailer. Galvanized nails to attach the nailers to the deck.
FASCIA BOARDS:
2x6 pressure treated, #1 grade, Southern Yellow Pine, fascia board to be attached at the eaves. Galvanized nails to attach the fascia to the beam ends and the deck.
FELT & SHINGLES:
One layer of #30 roofing felt to be applied on top of the wood deck. 25 yr. 3-Tab fiberglass shingles, standard color Autumn Brown, other color options available upon request. Metal roof available upon request.
ROOF PITCH
The standard roof pitch for the Columbia is a 6:12 pitch. A roof pitch up to 8:12 can be provided.
DESIGN LOADS
- 12 pounds per square foot dead load
- 30 pounds per square foot live load
- 20 pounds per square foot wind load. (Equates to 100 MPH)
The typical design load allows for:
There are variables that affect the design sizes of the members, specifically the columns and the curved beams, and those variables generally include live load conditions that are usually location specific. Building Codes normally dictate the applicable loads to be applied in the member size designs.
PRESSURE PRESERVATIVE TREATMENT
As noted in the component list above, the wood columns are fabricated with lumber pressure treated (prior to gluing) with CCA, at .6 pcf (6 tenths of a pound of preservative per cubic foot of wood) retention for “ground contact”. Fascia boards are treated with MCA or CCA,all the treatment per AITC 109. The treated glulam can be stained and painted.
FOR DETAILED SPECIFICATIONS, PLEASE CLICK ON THE SPECIFICATION LINK
Standard Shelter Sizes Available
Custom Sizes & Designs Available
| 20' | 45' |
| 25' | 50' |
| 30' | 55' |
| 35' | 60' |
| 40' | 70' |
Roof Framing - 40' Columbia
