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Boise Cascade Engineered Wood Products
Western Engineered Wood Products Specifier Guide
BCI Design Properties, Assembly & Nail Spacing
Western Engineered Wood Products Specifier Guide
Western EWP Specifier Guide - BCI Design Properties, One Hour Assembly & Allowable Nail Spacing
| One-Hour Floor/Ceiling Assembly |
|---|
FIRE ASSEMBLY COMPONENTS
- 3/4" Tongue-and-groove plywood or 23/32" APA rated sheathing (exp. 1 or exterior glue)
- BCI Joists at 24" o.c.
- Two layers 1/2" Type X Gypsum Board
SOUND ASSEMBLY COMPONENTS
when constructed with resilient channel(s)
- Add Carpet & Pad to fire assembly:
or - Add 3 1/2" Glass Fiber ins. to fire assembly:
or - Add an additional layer of 5/8" T&G OSB and 9
1/2" glass fiber ins. to fire assembly:
| Allowable Nail Spacing |
|---|
| Connector Size |
BCI/400 Nailing Perpendicular to Glue Lines |
BCI/450 &
BCI/600 Nailing Perpendicular to Glue Lines |
Nailing Parallel to Glue Lines |
||
|---|---|---|---|---|---|
| O.C. Spacing | End of Joist | O.C. Spacing | End of Joist | O.C. Spacing | |
8d Box |
2 1/2" |
1 1/2" |
2" |
1 1/2" |
4" |
8d Common |
3 1/2" |
1 1/2" |
2" |
1 1/2" |
6" |
10d & 12d Box |
3" |
1 1/2" |
2" |
1 1/2" |
6" |
10d & 12d Common |
4 1/2" |
3" |
3" |
2" |
6" |
16d Sinker |
4 1/2" |
3" |
3" |
2" |
6" |
16d Common |
6" |
3" |
3" |
3" |
10" |
| BCI Design Properties |
|---|
Use BC CALC Software for specific design data.
| DEPTH (IN INCHES) |
WEIGHT (lb/ft) |
K x 106 (lb) |
EI x 106 (lb-in2) |
Max End Reaction (lb) | Max. Intermediate Reaction (lb) | Max. Moment (ft-lbs.) |
||
|---|---|---|---|---|---|---|---|---|
| No Web Stiffeners |
With Web Stiffeners |
No Web Stiffeners |
With Web Stiffeners |
|||||
| 9 1/2" BCI 400 | 1.8 |
5.10 |
145 |
950 |
1125 |
2000 |
2350 |
2158 |
| 11 7/8" BCI 400 | 2.0 |
6.34 |
246 |
950 |
1425 |
2200 |
2850 |
2853 |
| 14" BCI 400 | 2.2 |
7.45 |
363 |
1025 |
1525 |
2300 |
3450 |
3480 |
| 9 1/2" BCI 450 | 2.0 |
5.16 |
168 |
950 |
1125 |
2000 |
2350 |
2537 |
| 11 7/8" BCI 450 | 2.2 |
6.41 |
284 |
950 |
1425 |
2200 |
2850 |
3356 |
| 14" BCI 450 | 2.4 |
7.53 |
417 |
1025 |
1525 |
2300 |
3450 |
4094 |
| 16" BCI 450 | 2.6 |
8.58 |
569 |
1025 |
1625 |
2400 |
3650 |
4791 |
| 11 7/8" BCI 600 | 2.6 |
6.52 |
385 |
950 |
1425 |
2200 |
2850 |
4806 |
| 14" BCI 600 | 2.8 |
7.65 |
562 |
1025 |
1525 |
2300 |
3450 |
5864 |
| 16" BCI 600 | 3.0 |
8.72 |
763 |
1025 |
1625 |
2400 |
3650 |
6864 |
| 18" BCI 600 | 3.2 |
9.78 |
997 |
N/A |
1750 |
N/A |
4350 |
7897 |
| 20" BCI 600 | 3.4 |
10.80 |
1266 |
N/A |
1900 |
N/A |
4500 |
8870 |
End reaction and intermediate reaction values based on bearing lengths of 1 3/4" and 3 1/2" respectively. Please see IBCO report for higher reaction values based on wider bearing lengths.
Reaction and moment values are based on 100% duration of load. Adjustments for various load durations are permitted when applicable by code.
Code Evaluations - ICBO PCF-4665