RTSH-P-D: Direct Mount Double Duct Support
This Double Cross Brace Support for Pipe or Duct features H-Stand design and mounts directly to your roof, providing superior wind and seismic bracing for roof ducts.
The RTSH-D-P, Double H-Stand Direct Mount Duct Support safely and securely mounts spiral or rectangular duct on rooftops and is designed to maximize jobsite efficiency. Direct mount, bolt down bases are utilized to increase performance in areas where seismic or wind concerns are a factor. Welded cross braces and precut framing reduce hardware needs and allow for easy adjustability above 12”.
All H-Stands are compatible with 1-5/8” channel accessories. Pipe clamps, rollers, clevis assemblies, and pipe shields can be attached to meet the needs of any project.
Available finishes: Pre-galvanized, Hot Dip Galvanized, and Stainless Steel.
Part Numbers
Width = Cross Brace Width
Height = Upright Height
| 24″ Height | 36″ Height | 48″ Height | 60″ Height | 72″ Height | 84″ Height | 96″ Height | 108″ Height | 120″ Height | |
| 24″ Width | RTSH2424 | RTSH3624 | RTSH4824 | RTSH6024 | RTSH7224 | RTSH8424 | RTSH9624 | RTSH10824 | RTSH12024 |
| 30″ Width | RTSH2430 | RTSH3630 | RTSH4830 | RTSH6030 | RTSH7230 | RTSH8430 | RTSH9630 | RTSH10830 | RTSH12030 |
| 36″ Width | RTSH2436 | RTSH3636 | RTSH4836 | RTSH6036 | RTSH7236 | RTSH8436 | RTSH9636 | RTSH10836 | RTSH12036 |
| 42″ Width | RTSH2442 | RTSH3642 | RTSH4842 | RTSH6042 | RTSH7242 | RTSH8442 | RTSH9642 | RTSH10842 | RTSH12042 |
| 48″ Width | RTSH2448 | RTSH3648 | RTSH4848 | RTSH6048 | RTSH7248 | RTSH8448 | RTSH9648 | RTSH10848 | RTSH12048 |
| 54″ Width | RTSH2454 | RTSH3654 | RTSH4854 | RTSH6054 | RTSH7254 | RTSH8454 | RTSH9654 | RTSH10854 | RTSH12054 |
| 60″ Width | RTSH2460 | RTSH3660 | RTSH4860 | RTSH6060 | RTSH7260 | RTSH8460 | RTSH9660 | RTSH10860 | RTSH12060 |
| 66″ Width | RTSH2466 | RTSH3666 | RTSH4866 | RTSH6066 | RTSH7266 | RTSH8466 | RTSH9666 | RTSH10866 | RTSH12066 |
| 72″ Width | RTSH2472 | RTSH3672 | RTSH4872 | RTSH6072 | RTSH7272 | RTSH8472 | RTSH9672 | RTSH10872 | RTSH12072 |
| 78″ Width | RTSH2478 | RTSH3678 | RTSH4878 | RTSH6078 | RTSH7278 | RTSH8478 | RTSH9678 | RTSH10878 | RTSH12078 |
| 84″ Width | RTSH2484 | RTSH3684 | RTSH4884 | RTSH6084 | RTSH7284 | RTSH8484 | RTSH9684 | RTSH10884 | RTSH12084 |
| 90″ Width | RTSH2490 | RTSH3690 | RTSH4890 | RTSH6090 | RTSH7290 | RTSH8490 | RTSH9690 | RTSH10890 | RTSH12090 |
| 96″ Width | RTSH2496 | RTSH3696 | RTSH4896 | RTSH6096 | RTSH7296 | RTSH8496 | RTSH9696 | RTSH10896 | RTSH12096 |
- For Double Cross Brace, add “-D”
- For Hot-Dip Galvanized, add “-HG”
- For RTSSPB20HG, Direct Mount Bases, add “-P”
Example: RTSHXXXX-P-HG denotes an H-Stand with direct mount bases in HG finish
***** Part numbers listed include (2) RTSF21 rubber bases, (2) Uprights, and (1) Cross brace in pre-galvanized finish *****
Typical Steel Duct Weights for H-Stand Loading
Surface Area of RTSF21 Base: 211.75 in2
Surface Area of RTSPUC Base: 71.50 in2
| Duct Size | Duct Weight/ft w/ 2″ Insulation |
Total Weight 6ft Spacing (lbs) |
Total Weight 8ft Spacing (lbs) |
RTSPUC Base PSI 6ft | RTSPUC Base PSI 8ft | RTSF21 Base PSI 6ft | RTSF21 Base PSI 68t |
|---|---|---|---|---|---|---|---|
| 28″x28″ | 28.80 | 172.80 | 230.40 | 1.558 | 1.961 | 0.585 | 0.721 |
| 30″x30″ | 30.90 | 185.40 | 247.20 | 1.646 | 2.078 | 0.615 | 0.761 |
| 42″x42″ | 43.20 | 259.20 | 345.60 | * | * | 0.789 | 0.993 |
| 54″x54″ | 55.60 | 333.60 | 444.80 | * | * | 0.965 | 1.227 |
| 60″x60″ | 61.80 | 370.80 | 494.40 | * | * | 1.053 | 1.345 |
| 84″x84″ | 86.50 | 519.00 | 692.00 | * | * | 1.403 | 1.811 |
| 96″x96″ | 98.80 | 592.80 | 790.40 | * | * | 1.577 | 2.043 |
* Application not permitted
** Weights for 16 ga. steel rectangular duct
*** PSI Calculation for a single duct
**** Weights include that of an H-Stand using both base types (RTSPUCF11 or RTSF21)
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