Steel-Con’s 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.
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
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 | 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 |