Rosboro Laminated Decking

Designed for Single and Multi-Span Applications

Mass timber decking system

Rosboro™ is a cost-effective alternative to to other mass timber floor and roof systems such as CLT (Cross Laminated Timber).

• Thickness: 3 ½”, 5 ½”, 6 ¾”, and 8 ¾”

• Widths: 12” through 48”

• Length: 10’ to 60’

• Can achieve up to a 2-Hr fire rated assembly through Effective Char Area.

• Smaller panel sizes require less area for job site storage.

• Variability in available exposed finishes allows for versatility in design.

Laminated Decking Value Table

Rosboro Laminated Decking Design Values

Product	Layup Combination	Bending 4 or more lams (psi)			Comp Perp to Grain F_c⊥ (psi)	Shear Parallel to Grain F_vy (psi)	MOE (10⁶ psi)
Product	Layup Combination	F_by	C_fu¹	F'_by	Comp Perp to Grain F_c⊥ (psi)	Shear Parallel to Grain F_vy (psi)	Apparent	TRUE
3-1/2" RLD	Comb. 2	1,800	1.147	2,064	560	230	1.6	1.7
5-1/2" RLD	Comb. 2	1,800	1.091	1,963	560	230	1.6	1.7
6-3/4" RLD	Comb. 2	1,800	1.066	1,919	560	230	1.6	1.7

Notes:
1. Flat-use factor (C_fu) per NDS Section 5.3.7.
2. Applicable to dry-use service conditions (CM = 1.0).
3. Applicable to in-service temperature conditions ≤ 100°F (Ct = 1.0).
4. Values assume minimum 12 inch decking width.