Selection Tables

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6 mm Steel plate to CLT
CLT
thickness
t
(mm) 		Bolt or
dowel
diameter
(in)
Type 12 (double shear)
CLT grade
E2 and V1 E1 and V2 E3
105 (3 ply) 1/2 7.48(d) 6.81(d) 6.09(d)
105 (3 ply) 5/8 10.9(d) 9.38(a) 7.82(a)
105 (3 ply) 3/4 12.6(a) 10.8(a) 9.02(a)
105 (3 ply) 7/8 14.2(a) 12.1(a) 10.1(a)
105 (3 ply) 1 15.5(a) 13.3(a) 11.1(a)
175 (5 ply) 1/2 8.82(d) 7.96(d) 7.05(d)
175 (5 ply) 5/8 12.5(d) 11.3(d) 10.1(d)
175 (5 ply) 3/4 16.7(d) 15.1(d) 13.5(d)
175 (5 ply) 7/8 21.3(d) 19.4(d) 17.4(d)
175 (5 ply) 1 26.4(d) 23.1(a) 19.3(a)
245 (7 ply) 1/2 10.2(d) 9.10(d) 8.01(d)
245 (7 ply) 5/8 14.1(d) 12.7(d) 11.2(d)
245 (7 ply) 3/4 18.5(d) 16.7(d) 14.9(d)
245 (7 ply) 7/8 23.4(d) 21.2(d) 18.9(d)
245 (7 ply) 1 28.7(d) 26.0(d) 23.2(d)
315 (9 ply) 1/2 11.3(g) 10.3(d) 8.96(d)
315 (9 ply) 5/8 15.7(d) 14.1(d) 12.4(d)
315 (9 ply) 3/4 20.4(d) 18.3(d) 16.2(d)
315 (9 ply) 7/8 25.5(d) 23.0(d) 20.4(d)
315 (9 ply) 1 30.9(d) 28.0(d) 24.9(d)

Notes:

  1. The governing failure mode for each connection configuration is denoted by letter(a)-(g), indicating the specific yielding failure mode as per O86 Clause 12.4.4.3.2.
  2. The tabulated lateral resistances are based on removing a 10 mm thick slot to accommodate the 6 mm thick internal steel plate.
  3. The connection resistance Nr is required to be calculated as follows:
    • Nr = N'r nF KD for mode (a),
    • Nr = N'r nF for mode (c),
    • Nr = N'r nF KDy for mode (d) or (g).

    nF is the number of fasteners in the connection. Modification factors KD and KDy are taken as 1.0 for standard-term loading. For other load durations, refer to Section 7.4 of the Wood Design Manual 2020.

  4. Tabulated values are based on ASTM A307 grade steel bolts or dowels, and ASTM A36/A36M grade steel plate. The resistance of steel plate needs to be checked separately.