# Watchdog Heavy Duty Double Spring Stand For Rigid Signs

**SKU:** SS621A  

**Manufacturer Product Number:** SS621A

**Manufacturer:** Plasticade


**Price:** $433.80 USD each

**Return window:** 45 days

**Product URL:** https://www.trafficsafetystore.com/shop/heavy-duty-double-spring-stand-for-rigid-signs/SS621A

**Product Image:** https://media.trafficsafetystore.com/i/heavy-duty-double-spring-stand-for-rigid-signs-roll-up-sign.png



**This product is on sale!**

**Category:** [Traffic Signs & Sign Stands](https://www.trafficsafetystore.com/shop/category/traffic-signs.md)  

**Subcategory:** [Sign Stands](https://www.trafficsafetystore.com/shop/subcategory/sign-stands.md)

**Product Group:** [Watchdog Heavy Duty Double Spring Stand for Rigid Signs](https://www.trafficsafetystore.com/shop/groupedproduct/watchdog-heavy-duty-double-spring-stand-for-rigid-signs.md)

## Product Features
| Feature | Selection |
|---|---|
| Sign Type | Rigid |
| Type of Sign Latch | "Fixed" Rigid Sign Brackets |
| Stand Base | Four (4) Legs |
| Springs | Dual Spring (2) |
| Sign Stand - Filter | Dual-Spring Sign Stands |

## Quick Facts
- Holds both 36" & 48" .080 Rigid Signs
- Extendable mast holds the bottom of a 48" sign 84" above ground level, top at 152"
- "Tri (3) Flag Holder" built into sign stand
- Heavy duty, automotive grade dual springs 'spill wind' in even the worst conditions
- Fixed length (69 1/2") aluminum legs lock into multiple positions to adjust even ground
- Non-skid rubber feet
- Meets MUTCD standards
- MASH tested and approved for 48" Roll Up Signs

![](//media.trafficsafetystore.com/image/upload/v1731083691/images/products/content/MASH Logo.png)

## Product Description
## The Heavy-Duty Standard for Rigid Aluminum Signs

The **Watchdog SS621A Heavy-Duty Double-Spring Sign Stand** is engineered specifically for the demands of displaying rigid .080″ aluminum signs in high-traffic work zones. Featuring a telescoping mast that raises 48″ signs to a compliant 84″ height, this stand combines lightweight aluminum legs with a robust steel spring system to "spill" heavy wind loads and keep your signage upright and visible.

## Key Features & Benefits

- **Rigid Sign Specialist:** Purpose-built to support 36″ and 48″ rigid (.080″ aluminum) signs, making it the ideal choice for long-term construction projects.
- **Extended Visibility Mast:** The telescoping mast allows for variable height adjustments, capable of mounting the bottom of a 48″ sign 7 feet (84″) above the ground for maximum driver visibility.
- **Dual-Spring Stability:** Heavy-duty automotive-grade steel springs are designed to absorb wind gusts and turbulence from passing trucks, preventing the stand from walking or tipping.
- **Lightweight Aluminum Legs:** Fixed-length legs are constructed from aluminum to reduce carrying weight without sacrificing the wide footprint needed for stability.
- **All-Terrain Leveling:** Legs lock into multiple positions, allowing independent adjustment to keep the stand level on uneven ground, slopes, or shoulders.
- **Integrated Flag Holder:** Includes a built-in bracket to mount three standard conspicuity flags, adding an extra layer of visibility to your setup.
- **MASH & MUTCD Compliant:** Fully tested and MASH-accepted (WZ-427) for 48″ .080 aluminum signs, ensuring your site meets federal safety regulations.

## Ideal Applications

The Watchdog SS621A is the professional choice for:

- Highway and interstate construction zones
- Long-term detour signage
- Municipal paving and maintenance projects
- Any site requiring NCHRP-350 or MASH compliant rigid sign support

## Why Buy the Watchdog SS621A from TrafficSafetyStore.com?

- **In-Stock & Ships Tomorrow:** We keep the SS621A ready to go, with most orders shipping within 24 hours to keep your project moving.
- **Complete Configuration:** Includes the necessary rigid sign brackets (Top & Bottom) so you have everything you need right out of the box.
- **Fleet-Ready Value:** We offer competitive volume pricing for contractors and agencies outfitting multiple work crews.

**Stand strong against the elements.** Order the Watchdog SS621A Heavy-Duty Double-Spring Sign Stand today for a secure, field-tested solution for your rigid traffic signs.


## Additional Details
| Detail | Additional Information |
|---|---|
| WatchDog SS621A Spec Sheet | https://media.trafficsafetystore.com/image/upload/Production/pdf/Plasticade-Heavy-Duty-Tall-Double-Spring-Sign-Stand-for-Aluminum-Sign-SS621A-Rev.-3-cm.pdf |





Last Updated: 2026-08-21T10:02:03.5197496Z