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Home > Products > Head-of-Wall Deflection Systems > TTDS – Track-in-Track Deflection System

TTDS – Track-in-Track Deflection System

SCAFCO Track-in-Track Deflection System (TTDS) is a two-piece assembly that accommodates deflection of exterior curtain walls and interior partition walls. The outer track is custom-made with a deeper leg and wider web width, typically installed to the underside of the floor decking. A pre-constructed wall assembly slides into the deep leg track. The wall assembly is designed to allow a gap at the top for deflection. The TTDS assembly cannot be used in axial load-bearing conditions or above continuous window and header spandrels.

TTS

Features

  • Standard Track-in-Track deflection system allows up to 1” of vertical movement
  • Absorbs head-of-wall and floor extension or compression movement
  • Available in custom widths and thicknesses
thumbnail of TTDS

TTDS Submittal Download

Material Composition

  • Mill-certified steel
  • ASTM A653, A1003, and C645
  • 33 mil
    – 33 ksi yield strength
    – 45 ksi tensile strength
    – G60 galvanized coating
  • 43 mil
    – 33 ksi yield strength
    – 45 ksi tensile strength
    – G60 galvanized coating
  • 54 mil
    – 57 ksi yield strength
    – 65 ksi tensile strength
    – G60 galvanized coating
  • 68 mil
    – 57 ksi yield strength
    – 65 ksi tensile strength
    – G90 galvanized coating
  • 97 mil
    – 57 ksi yield strength
    – 65 ksi tensile strength
    – G90 galvanized coating

Order Information

2 ½” Stud Width TTDS
Product Thickness Outer Track Size
(in)
Weight
(lbs/ft)
Mil Gauge Inches
250T250-33 / 262T200-33 33 20 0.0346 2-5/8 1.47
250T250-43 / 262T200-43 43 18 0.0451 2-5/8 1.92
250T250-54 / 262T200-54 54 16 0.0566 2-5/8 2.41
250T250-68 / 275T200-68 68 14 0.0713 2-3/4 3.06
250T250-97 / 275T200-97 97 12 0.1017 2-3/4 4.37
3 ½” Stud Width TTDS
350T250-33 / 362T200-33 33 20 0.0346 3-5/8 1.70
350T250-43 / 362T200-43 43 18 0.0451 3-5/8 2.21
350T250-54 / 362T200-54 54 16 0.0566 3-5/8 2.78
350T250-68 / 375T200-68 68 14 0.0713 3-3/4 3.53
350T250-97 / 375T200-97 97 12 0.1017 3-3/4 5.03
3 ⅝” Stud Width TTDS
362T250-33 / 375T200-33 33 20 0.0346 3-3/4 1.72
362T250-43 / 375T200-43 43 18 0.0451 3-3/4 2.25
362T250-54 / 375T200-54 54 16 0.0566 3-3/4 2.82
362T250-68 / 387T200-68 68 14 0.0713 3-7/8 3.58
362T250-97 / 387T200-97 97 12 0.1017 3-7/8 5.11
4” Stud Width TTDS
400T250-33 / 412T200-33 33 20 0.0346 4-1/8 1.81
400T250-43 / 412T200-43 43 18 0.0451 4-1/8 2.36
400T250-54 / 412T200-54 54 16 0.0566 4-1/8 2.96
400T250-68 / 425T200-68 68 14 0.0713 4-1/4 3.76
400T250-97 / 425T200-97 97 12 0.1017 4-1/4 5.36
5 ½” Stud Width TTDS
550T250-33 / 562T200-33 33 20 0.0346 5-5/8 2.15
550T250-43 / 562T200-43 43 18 0.0451 5-5/8 2.80
550T250-54 / 562T200-54 54 16 0.0566 5-5/8 3.51
550T250-68 / 575T200-68 68 14 0.0713 5-3/4 4.45
550T250-97 / 575T200-97 97 12 0.1017 5-3/4 6.35
6” Stud Width TTDS
600T250-33 / 612T200-33 33 20 0.0346 6-1/8 2.26
600T250-43 / 612T200-43 43 18 0.0451 6-1/8 2.94
600T250-54 / 612T200-54 54 16 0.0566 6-1/8 3.69
600T250-68 / 625T200-68 68 14 0.0713 6-1/4 4.68
600T250-97 / 625T200-97 97 12 0.1017 6-1/4 6.68
8” Stud Width TTDS
800T250-33 / 812T200-33 33 20 0.0346 8-1/8 2.71
800T250-43 / 812T200-43 43 18 0.0451 8-1/8 3.53
800T250-54 / 812T200-54 54 16 0.0566 8-1/8 4.43
800T250-68 / 825T200-68 68 14 0.0713 8-1/4 5.61
800T250-97 / 825T200-97 97 12 0.1017 8-1/4 8.00
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