The First Glulam Beam Manufactured
Specifically for Rim Applications
Rosboro X-RIM

X-Rim™ Glulam Rim Board

Used as a firestop in floor systems, around stairwells and elevator shafts and it is installed in walls perpendicular to the floor joist eliminating high cost standoff hangers. X-Rim is also specified in stacked framing applications where dimensional stability is critical.

  • Widths: 1½”, 1¾”, 3½”, 5½”, 6¾” 
  • Depths: 9¼”, 9½”, 11¼”, 11⅞”, 14”, 16”, 18”
  • Zero camber so it installs flat in floor systems
  • Fits flush with 2×4 and 2×6 framing with depths that match EWP and conventional framing systems
  • Ideal as a fire stop and easily meets a 1-hour fire rating
  • Kiln-dried to an average moisture content of 13% and manufactured to tight depth tolerances
  • Available in manageable lengths such as 20′ with both ends square cut and sealed

X-Rim Design Value Table

Rosboro X-Rim Header Design

Product Layup Combination Bending Fb (psi)2 Comp Perp to Grain Fc⊥ (psi) Shear MOE (106 psi)
Fv (psi)3 Apparent TRUE
X-Rim ≤ 15” depth Combination 1 DF 1250 560 265 1.5 1.6
X-Rim ≤ 15” depth Combination 1 DF 1100 560 265 1.5 1.6

Rosboro X-Rim Rim Design

Product Thickness (in.) Horizontal Load Transfer Capacityb,c Vertical Load Capacityd Z
Uniform (lbf/ft) Concentrated (lbf)
(lbf/ft) Depth (d) Limitation (in.) (lbf)
Nails at 6 inches o.c. d ≤ 16 16 < d ≤ 24 d ≤ 24 d ≤ 24
X-Rim 3.5 240 5000 3500 5,000 410
X-Rim 5.5 240 5000 3500 6,500 410

P.O. Box 20

2509 Main Street

Springfield, OR 97477

Corporate Office: (541) 746-8411

Sales & Customer Service: (877) 457-4139