1¼" Framing System
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A3301 – 1¼" x 1½"
Unistrut
Wt/100 Ft: 156 Lbs (232 kg/100m) ꞏ Allowable Moment 2,590 In-Lbs (290 N•m) ꞏ 14 Gauge Nominal Thickness .075" (1.9mm)
1 1 ⁄
4 "
3 ⁄
4 "
1
1 1 ⁄
2 "
3 ⁄
4 "
2
A3301 - Beam Loading
A1001 - Beam Loading (metric)
Span Max Allowable Uniform Load
Defl. at Uniform Load
Uniform Loading at Deflection
Span Max Allowable Uniform Load
Defl. at Uniform Load
Uniform Loading at Deflection
Span/180 Span/240 Span/360
Span/180 Span/240 Span/360
(in)
(lb)
(in)
(lb)
(lb)
(lb)
(mm)
(kN) 7.3* 7.3*
(mm)
(kN) 7.3* 7.3*
(kN) 7.3* 7.3*
(kN)
18 24 36 48 60 72 84 96
990*
0.03 0.07 0.15 0.27 0.43 0.62 0.85 1.11
990*
990*
990*
600 750
1 2 3 4 6 9
7.3 7.3 5.5 3.5 2.4 1.8 1.4 0.9 0.6 0.4
860 580 430 350 290 250 220
860 850 420 270 190 140 110
860 560 320 200 140 100
850 380 210 140
1,000 1,250 1,500 1,750 2,000 2,500 3,000 3,500
5.5 4.4 3.6 3.2 2.8 2.2 1.8 1.6
5.5 4.4 3.6 3.2 2.7 1.7 1.2 0.9
5.5 4.4 3.6 2.7 2.0 1.3 0.9 0.7
90 70 50
11 17 25 34
80
A3301 - Column Loading
A1001 - Column Loading (metric)
Unbraced Height
Maximum Allowable Load at Slot Face
Maximum Column Load Applied at C.G.
Unbraced Height
Maximum Allowable Load at Slot Face
Maximum Column Load Applied at C.G.
K = 0.65 K = 0.80 K = 1.0 K = 1.2
K = 0.65 K = 0.80 K = 1.0 K = 1.2
(in)
(lb)
(lb)
(lb)
(lb)
(lb)
(mm)
(kN) 15.5 15.2 14.9 14.4 13.3 12.1 10.8
(kN) 56.9 54.4 50.4 47.2 44.6 39.4 34.1 29.0 24.1 19.9
(kN) 54.5 51.6 47.4 43.9 37.4 30.9 24.8 19.6 15.9 13.1
(kN) 51.6 48.4 43.9 35.7 27.8 20.7 15.9 12.5 10.2
(kN) 48.9 45.7 37.4 27.8 19.6 14.4 11.0
18 24 36 48 60 72 84 96
2540 2510 2410 2230 1970 1650 1380 1160
9890 9510 8800 7560 6210 4890 3680 2820
9620 9200 7960 6320 4690 3310 2430 1860
9300 8710 6730 4690 3050 2120
9020 7960 5490 3310 2120
600 750
1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750
** ** **
** **
9.5 8.4 7.4
** ** **
**
A3300/A3301 - Elements of Section
ꞏ Finishes: PL, GR, HG, PG; Standard Lengths: 10' & 20'
Parameter
A1000
Parameter
A1000
Area of Section
0.305 in 2
Area of Section
1.96
cm 2
Axis 1-1
Axis 1-1
Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r) Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r)
0.061 in 4 0.086 in 3
Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r) Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r)
2.53 1.41 1.14 3.25 2.05 1.29
cm 4 cm 3
0.447
in
cm
Axis 2-2
Axis 2-2
0.078 in 4 0.125 in 3
cm 4 cm 3
0.506
in
cm
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