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URS Load Tables

Strong-Rod Systems

Technical and Installation Notes
Strong Rod Literature
ATS versus URS
Anchor Tiedown System
Uplift Restraint Systems for Roofs

Maximum Lengths of URS Uplift Rod Runs and Maximum Chord/Drag Strut Loads (ATUD Deflection included) Double 2x4 HF No.2 Top Plates

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ATUD-53x80-1
ATUD

Roof Uplift Along Top of Wall (plf) Uplift Rod Run Spacing (in.) Double 2x4 HF No.2 Top Plates
Unreinforced Top Plate Splices Reinforced Top Plate Splices Learn More
URS Model Maximum Chord / Drag Strut Load (lbs) URS Model Maximum Chord / Drag Strut Load (lbs)
URS3 URS4 URS5 URS6 URS3 URS4 URS5 URS6
Maximum Length of URS Uplift Rod Run (feet) [System Deflection, Δ (inches)] Maximum Length of URS Uplift Rod Run (feet) [System Deflection, Δ (inches)]
100 24 65 [0.088] 65 [0.057] 65 [0.043] 65 [0.037] 4,153 65 [0.081] 65 [0.05] 65 [0.036] 65 [0.03] 9,114
30 65 [0.128] 65 [0.089] 65 [0.071] 65 [0.063] 3,698 65 [0.109] 65 [0.071] 65 [0.053] 65 [0.045] 8,659
36 65 [0.185] 65 [0.138] 65 [0.117] 65 [0.107] 3,142 65 [0.147] 65 [0.101] 65 [0.08] 65 [0.069] 8,103
40 65 [0.236] 65 [0.185] 65 [0.161] 65 [0.149] 2,715 65 [0.179] 65 [0.127] 65 [0.104] 65 [0.092] 7,677
42 55 [0.249] 65 [0.213] 65 [0.189] 65 [0.176] 2,485 65 [0.197] 65 [0.143] 65 [0.119] 65 [0.106] 7,446
48 NP NP NP NP - 58 [0.25] 65 [0.203] 65 [0.175] 65 [0.16] 6,688
60 NP NP NP NP - NP NP NP NP -
72 NP NP NP NP - NP NP NP NP -
200 24 65 [0.175] 65 [0.113] 65 [0.085] 65 [0.07] 3,344 65 [0.16] 65 [0.098] 65 [0.07] 65 [0.055] 8,305
30 63 [0.249] 65 [0.177] 65 [0.142] 65 [0.122] 2,435 65 [0.218] 65 [0.14] 65 [0.106] 65 [0.086] 7,396
36 NP NP NP NP - 51 [0.249] 65 [0.2] 65 [0.158] 65 [0.134] 6,284
40 NP NP NP NP - 34 [0.247] 63 [0.25] 65 [0.207] 65 [0.18] 5,431
42 NP NP NP NP - 26 [0.249] 47 [0.248] 65 [0.236] 65 [0.208] 4,970
48 NP NP NP NP - NP NP NP NP -
60 NP NP NP NP - NP NP NP NP -
72 NP NP NP NP - NP NP NP NP -
300 24 56 [0.234] 65 [0.169] 65 [0.128] 65 [0.103] 2,536 56 [0.211] 65 [0.147] 65 [0.105] 65 [0.081] 7,497
30 32 [0.25] 58 [0.25] 65 [0.212] 65 [0.181] 1,171 45 [0.247] 65 [0.21] 65 [0.158] 65 [0.127] 6,132
36 NP NP NP NP - 25 [0.248] 46 [0.25] 65 [0.237] 65 [0.199] 4,465
40 NP NP NP NP - NP NP NP NP -
42 NP NP NP NP - NP NP NP NP -
48 NP NP NP NP - NP NP NP NP -
60 NP NP NP NP - NP NP NP NP -
72 NP NP NP NP - NP NP NP NP -
400 24 41 [0.248] 65 [0.226] 65 [0.17] 65 [0.136] 1,727 42 [0.222] 65 [0.196] 65 [0.14] 65 [0.107] 6,688
30 NP NP NP NP - 30 [0.249] 54 [0.248] 65 [0.21] 65 [0.168] 4,869
36 NP NP NP NP - NP NP NP NP -
40 NP NP NP NP - NP NP NP NP -
42 NP NP NP NP - NP NP NP NP -
48 NP NP NP NP - NP NP NP NP -
60 NP NP NP NP - NP NP NP NP -
72 NP NP NP NP - NP NP NP NP -
500 24 29 [0.246] 54 [0.25] 65 [0.212] 65 [0.17] 918 33 [0.23] 61 [0.233] 65 [0.175] 65 [0.132] 5,880
30 NP NP NP NP - 20 [0.245] 37 [0.248] 53 [0.25] 65 [0.209] 3,606
36 NP NP NP NP - NP NP NP NP -
40 NP NP NP NP - NP NP NP NP -
42 NP NP NP NP - NP NP NP NP -
48 NP NP NP NP - NP NP NP NP -
60 NP NP NP NP - NP NP NP NP -
72 NP NP NP NP - NP NP NP NP -
600 24 21 [0.244] 39 [0.247] 63 [0.25] 65 [0.203] 110 28 [0.244] 51 [0.244] 65 [0.209] 65 [0.158] 5,071
30 NP NP NP NP - 12 [0.244] 23 [0.25] 36 [0.249] 65 [0.25] 2,342
36 NP NP NP NP - NP NP NP NP -
40 NP NP NP NP - NP NP NP NP -
42 NP NP NP NP - NP NP NP NP -
48 NP NP NP NP - NP NP NP NP -
60 NP NP NP NP - NP NP NP NP -
72 NP NP NP NP - NP NP NP NP -