PROFESSIONAL-GRADE 3"x4" RECTANGULAR DOWNSPOUT
HEAVY-DUTY ALUMINUM • HIGH CAPACITY • 8FT & 10FT LENGTHS
The Professional-Grade 3"x4" Rectangular Downspout is engineered specifically for contractors and professional installers who demand superior performance and durability. This heavy-duty aluminum downspout provides exceptional water capacity for large roof areas and commercial applications.
Available in both 8ft and 10ft lengths and multiple designer colors, this professional-grade rectangular downspout is ideal for commercial buildings, large residential properties, and any project requiring maximum water flow capacity. The robust 3"x4" dimensions ensure efficient water management even during the heaviest rainfall.
★★★★★ Trusted by Professional Contractors
"These 3"x4" downspouts are our standard for commercial projects and large residential installations. The heavy-duty construction stands up to years of use, and the high capacity handles water from extensive roof areas without overflow. For local projects, we use the 10ft sections, and for our nationwide jobs, the 8ft sections ship easily and perform flawlessly." - James W., Commercial Gutter Systems
PRODUCT ADVANTAGES
- ✓ Maximum Capacity: Handles water from large roof areas
- ✓ Heavy-Duty Construction: Premium aluminum for durability
- ✓ Commercial Grade: Ideal for professional installations
- ✓ Professional Appearance: Clean lines and precise dimensions
- ✓ Designer Colors: Multiple finish options to complement any exterior
IMPORTANT SHIPPING NOTICE
10FT SECTIONS: Available for LOCAL DELIVERY AND PICKUP ONLY due to shipping carrier restrictions.
8FT SECTIONS: Available for nationwide shipping.
Please select the appropriate length based on your location and delivery requirements.
PRODUCT OPTIONS
Our Professional-Grade 3"x4" Rectangular Downspouts are available in two length options and multiple designer colors to perfectly complement any architectural style and gutter system.
| Size Options | Dimensions | Length | Shipping Availability | Best For |
|---|---|---|---|---|
| 3"x4" - 8ft | 3" x 4" | 8 feet | Nationwide Shipping Available | All locations |
| 3"x4" - 10ft | 3" x 4" | 10 feet | Local Pickup/Delivery Only | Local projects |
QUANTITY OPTIONS
| Package Option | Quantity | Best For | Savings |
|---|---|---|---|
| Single Unit | 1 downspout | Small projects, repairs | Standard pricing |
| Box of 10 | 10 downspouts | Large projects, contractors | Save 15% |
COLOR OPTIONS
White
Black
Musket Brown
Silver/Aluminum
25+ designer colors available. Contact us for more information on color options.
PRODUCT FEATURES
HIGH-CAPACITY DESIGN
The 3"x4" rectangular profile provides maximum water flow capacity, making it ideal for commercial buildings, large residential properties, and any project with extensive roof areas. This high-capacity design ensures efficient water management even during the heaviest rainfall.
Design Benefits:
- 12 square inches of flow capacity
- Handles water from up to 1,200 square feet of roof area
- Minimizes risk of overflow during heavy rainfall
- Ideal for commercial and large residential applications
- Perfect for regions with significant precipitation
HEAVY-DUTY CONSTRUCTION
Crafted from premium heavy-duty aluminum with a durable powder-coated finish, these downspouts are built to withstand years of exposure to the elements without rusting, corroding, or losing structural integrity. The robust construction ensures long-term performance in demanding environments.
Construction Features:
- Premium heavy-duty aluminum construction
- 0.027" material thickness for superior durability
- UV-resistant powder coating
- Reinforced design for structural integrity
- Designed for commercial-grade applications
PROFESSIONAL INSTALLATION
These 3"x4" rectangular downspouts are designed for professional installation with heavy-duty brackets and connectors. The system integrates seamlessly with commercial and large residential gutter systems while maintaining a professional appearance.
Installation Features:
- Compatible with standard 3"x4" brackets and straps
- Connects to 5", 6", and 7" gutter systems
- Clean connections for professional appearance
- Available in 8ft and 10ft sections for installation flexibility
- Can be cut to custom lengths on-site
COMMERCIAL-GRADE PERFORMANCE
Engineered specifically for commercial applications and large residential projects, these downspouts deliver reliable performance in demanding environments. The robust design and premium materials ensure long-term functionality and minimal maintenance requirements.
Performance Benefits:
- Exceptional durability in all weather conditions
- Resistant to impact damage
- Maintains structural integrity over time
- Minimal maintenance requirements
- Designed for decades of reliable service
INSTALLATION GUIDE
PROFESSIONAL INSTALLATION TIPS
Tools Required:
- Heavy-duty tin snips or power saw with metal cutting blade
- Drill with appropriate bit
- Screwdriver
- Level
- Measuring tape
- Heavy-duty downspout brackets (1 per 4 feet)
Materials Included:
- 3"x4" Rectangular Downspout section (8ft or 10ft)
- Note: Brackets, elbows, and connectors sold separately
Installation Steps:
- Measure and plan your downspout layout
- Cut downspout to required length using heavy-duty tin snips or power saw
- Attach outlet to gutter
- Install first elbow at the top of the downspout
- Install brackets at 4-foot intervals along the wall
- Connect downspout sections as needed using connectors
- Secure downspout to brackets
- Add bottom elbow and extension as needed
- Check all connections for proper fit and security
- Test system with water to ensure proper flow and no leaks
PROFESSIONAL TIP:
For commercial installations, consider using additional brackets in high-wind areas or on buildings taller than two stories. When cutting these heavy-duty downspouts, a power saw with a metal cutting blade will provide cleaner cuts than tin snips. Always deburr cut edges for safety and proper fitting of components.
TECHNICAL SPECIFICATIONS
PRODUCT SPECIFICATIONS
| Material: | Heavy-duty aluminum |
| Dimensions: | 3" x 4" (nominal) |
| Available Lengths: | 8ft (nationwide shipping) and 10ft (local only) |
| Material Thickness: | 0.027 inches |
| Flow Capacity: | 12 square inches |
| Finish: | Powder-coated |
| Color Options: | 25+ designer colors |
| Weather Resistance: | All-weather, UV-resistant |
| Warranty: | 20-year limited warranty |
COMPATIBILITY
| Compatible With: | Standard 3"x4" downspout brackets, elbows, and connectors |
| Gutter Compatibility: | 5", 6", and 7" K-style and half-round gutters |
| Recommended Brackets: | Heavy-duty 3"x4" rectangular downspout brackets (sold separately) |
| Bracket Spacing: | Every 4 feet along downspout |
| Roof Area Capacity: | Up to 1,200 square feet per downspout |
| Required Accessories: | Elbows, brackets, and outlet adapters (sold separately) |
CUSTOMER TESTIMONIALS
These 3"x4" downspouts are our standard for commercial projects and large residential installations. The heavy-duty construction stands up to years of use, and the high capacity handles water from extensive roof areas without overflow. For local projects, we use the 10ft sections, and for our nationwide jobs, the 8ft sections ship easily and perform flawlessly.
James W.
Commercial Gutter Systems
We've installed these 3"x4" downspouts on dozens of commercial buildings, and they consistently outperform smaller options. The heavy-duty construction is perfect for commercial applications where durability is essential. The wide range of color options allows us to match any architectural style, and the professional appearance enhances the overall look of our projects.
Richard L.
Commercial Construction
For large residential projects with extensive roof areas, these 3"x4" downspouts are the perfect solution. They provide exceptional water capacity while maintaining a professional appearance. The heavy-duty construction ensures long-term performance, and the wide range of colors allows us to perfectly match any exterior. These are our go-to for high-end residential installations.
Sarah M.
Luxury Home Builder
FREQUENTLY ASKED QUESTIONS
Q: What is the difference between 8ft and 10ft sections?
A: Both 8ft and 10ft sections are identical in material, construction, and quality. The primary differences are length and shipping availability. The 10ft sections provide fewer seams in your installation but are only available for local delivery or pickup due to shipping carrier restrictions. The 8ft sections are available for nationwide shipping, making them accessible to customers outside our local delivery area.
Q: What size roof area can a 3"x4" downspout handle?
A: A 3"x4" rectangular downspout can effectively handle water from approximately 1,200 square feet of roof area under normal rainfall conditions. This makes it ideal for commercial buildings, large residential properties, and any project with extensive roof areas. The high capacity ensures efficient water management even during heavy rainfall, minimizing the risk of overflow and potential water damage.
Q: What brackets should I use with these downspouts?
A: These downspouts require heavy-duty 3"x4" rectangular downspout brackets or straps. We offer compatible brackets in matching colors, sold separately. For optimal support, install brackets approximately every 4 feet along the downspout and within 12 inches of any elbow or transition. For commercial installations or in high-wind areas, consider using additional brackets for enhanced security.
Q: How do I cut these heavy-duty downspouts?
A: For the cleanest cuts on these heavy-duty downspouts, we recommend using a power saw with a fine-tooth metal cutting blade. This will provide cleaner, straighter cuts than tin snips. Mark your cut line clearly around the entire perimeter of the downspout before cutting. After cutting, use a file to smooth any sharp edges for safety and to ensure proper fitting with other components.
Q: What is the advantage of the "Box of 10" option?
A: The "Box of 10" option provides several advantages for contractors and larger projects. First, you'll save approximately 15% compared to purchasing individual downspouts. Second, having multiple downspouts on hand ensures you have sufficient materials for larger projects or multiple installations. Finally, the bulk packaging reduces waste and provides more efficient storage and transportation to job sites.
COMMERCIAL-GRADE PERFORMANCE
Maximum capacity and heavy-duty construction for demanding commercial and large residential applications.
VISIT OUR SHOWROOM
Come see our complete line of professional-grade gutter products and accessories at our showroom. Our specialists are available to answer your questions and provide personalized recommendations for your project needs.
Location: 19759 SE Sunnyside Rd, Damascus, OR 97089
Hours: Monday-Saturday: 8:00 AM - 4:00 PM
Support: Send message for assistance
SHIPPING & PICKUP
- 8ft Sections: Available for nationwide shipping
- 10ft Sections: Available for local pickup/delivery only
- Local Pickup: Available at our Damascus, OR location
- Pickup Timing: Usually ready in 2-4 days
- Local Delivery: Available within our service area
RETURN POLICY DISCLAIMER
In the event of a return, buyer is responsible for all return shipping costs. Additionally, a 15% restocking fee will apply to all unused, undamaged returns. Please consider this when making your purchase decision. We are committed to your satisfaction and will work with you to resolve any issues prior to return.