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Boise Cascade Engineered Wood Products
Western Engineered Wood Products Specifier Guide
Versa-Lam Column Table
Western Engineered Wood Products Specifier Guide
| Western EWP Specifier Guide - Versa-Lam Columns |
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The same properties that make Versa-Lam beams great, also make them highly suitable for wood columns. In Versa-Lam columns, you'll find none of the deep checks, cracks or twists that can plague solid wood columns and there's no need to box in Versa-Lam's good looks.
Versa-Lam Column Table
| Length (ft) |
Allowable Axial Load (Lb) 100% Load Duration |
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|---|---|---|---|---|---|---|
| 3 1/2" x 3 1/2" | 3 1/2" x 5 1/4" | 3 1/2" x 7" | 5 1/4" x 5 1/4" | 5 1/4" x 7" | 7" x 7" | |
4 |
15,160 |
... |
... |
... |
... |
... |
5 |
12,655 |
18,990 |
... |
... |
... |
... |
6 |
10,385 |
15,590 |
20,790 |
... |
... |
... |
7 |
8,555 |
12,840 |
17,125 |
29,745 |
... |
... |
8 |
7,125 |
10,690 |
14,260 |
26,200 |
34,950 |
... |
9 |
6,000 |
9,005 |
12,010 |
22,995 |
30,675 |
... |
10 |
5,110 |
7,675 |
10,235 |
20,220 |
26,970 |
... |
11 |
4,400 |
6,605 |
8,810 |
17,850 |
23,810 |
... |
12 |
3,825 |
5,740 |
7,660 |
15,835 |
21,120 |
... |
13 |
3,355 |
5,035 |
6,715 |
14,115 |
18,830 |
... |
14 |
2,960 |
4,445 |
5,930 |
12,650 |
16,875 |
33,415 |
15 |
... |
... |
... |
11,390 |
15,195 |
30,490 |
16 |
... |
... |
... |
10,305 |
13,745 |
27,900 |
17 |
... |
... |
... |
9,360 |
12,490 |
25,600 |
18 |
... |
... |
... |
8,540 |
11,390 |
23,560 |
19 |
... |
... |
... |
7,820 |
10,430 |
21,740 |
20 |
... |
... |
... |
7,185 |
9,580 |
20,110 |
21 |
... |
... |
... |
6,620 |
8,830 |
18,655 |
22 |
... |
... |
... |
... |
... |
17,345 |
23 |
... |
... |
... |
... |
... |
16,160 |
24 |
... |
... |
... |
... |
... |
15,095 |
Table assumes that the column is braced at column ends only. Effective column length is equal to actual column length.
NOTES
- Allowable loads are based on solid, one piece column members used in dry service conditions.
- Allowable loads incorporate an eccentricity value of 0.167 of column thickness (least dimension).
- Allowable loads are based on axial loaded columns using the design provisions of the National Design Specification for Wood Construction (NDS), 1991 edition.
- For side loading or other combined bending and axial loads, see provisions of NDS, 1991 edition.
Multiple Member Beams
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| Multiple Member Connections |
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Boise Cascade strongly
recommends the use of single members
Side Loaded Connections
| Maximum Uniform Load (lbs. per lin. ft.) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Nailed | 1/2" Through Bolt (b) | 5/8" Through Bolt (b) | ||||||
Number of |
2 rows 16d |
3 rows 16d |
2 rows |
2 rows |
2 rows |
2 rows |
2 rows |
2 rows |
| 1 3/4" Versa-Lam | ||||||||
2 |
520 |
780 |
500 |
1000 |
2000 |
560 |
1120 |
2240 |
3 (a) |
390 |
585 |
375 |
750 |
1500 |
420 |
840 |
1680 |
4 (c) |
use bolt schedule |
330 |
670 |
1330 |
370 |
740 |
1490 |
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| 3 1/2" Versa-Lam | ||||||||
2 (c) |
use bolt schedule |
860 |
1720 |
N/A |
1120 |
2240 |
N/A |
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(a) The nail schedules shown apply to both sides of a three member beam.
(b) Design values apply to common bolts that conform to ANSI/ASME standard B18.21-1981. A washer not less than a standard cut washer shall be between the wood and the bolt head and between the wood and the nut. The distance from the edge of the beam to the bolt holes must be at least 2" for 1/2" bolts and 2 1/2" for 5/8" bolts. Bolt holes shall be the same diameter as the bolt.
(c) 7" wide beams must be loaded from both sides.
(d) Beams wider than 7" must be designed by engineer of record.
(e) All values in these tables may be increased by 15% for snow-load roofs where the building code allows.
(f) MINIMUM MULTIPLE MEMBER CONNECTIONS for top loaded beams and beams with side loads with less than those shown:
| (2) 1 3/4" plies | Depth  12" |
2 rows 16d box or 3 1/2" x .131" nails @ 12" o.c. | 400 plf maximum uniform load from one side |
|---|---|---|---|
| Depth > 12" | 3 rows 16d box or 3 1/2" x .131" nails @ 12" o.c. | 600 plf maximum uniform load from one side | |
| (3) 1 3/4" plies | Depth 12" |
2 rows 16d box or 3 1/2" x .131" nails @ 12" o.c. | 300 plf maximum uniform load from one side |
| Depth > 12" | 3 rows 16d box or 3 1/2" x .131" nails @ 12" o.c. | 450 plf maximum uniform load from one side | |
| (4) 1 3/4" plies | All Depths | 2 rows 1/2" bolts @ 24" o.c. staggered | 335 plf maximum uniform load from one side |
| (2) 3 1/2" plies | All Depths | 2 rows 1/2" bolts @ 24" o.c. staggered | 860 plf maximum uniform load from one side |
(g) Use allowable load tables or BC CALC software to size beams.