Ensure Your Gutters Are the Perfect Fit
Choosing the right gutter size isn’t just about aesthetics — it’s about protecting your foundation, siding, fascia, and landscaping from water damage.
Use this calculator to estimate the proper gutter size based on:
- Roof square footage
- Roof slope
- New Jersey rainfall levels
Proper sizing ensures your system can handle heavy South Jersey storms, nor’easters, and summer downpours without overflowing.
Professional Gutter Sizing Calculator
Calculate proper gutter and downspout sizing for your New Jersey home based on roof drainage area and storm intensity.

Gutter Sizing Calculator
Accurately determine the ideal gutter size for your home or business, factoring in roof dimensions, slope, and local rainfall intensity to ensure optimal water management and property protection.
Why Proper Gutter Sizing Matters in South Jersey
Homes in Burlington, Camden, and Gloucester Counties experience heavy seasonal rain, coastal humidity, and wind-driven storms. When gutters are too small, water cannot drain fast enough.
Overflowing water can:
- Damage siding and trim
- Saturate soil around foundations
- Contribute to basement moisture
- Create ice buildup in winter
Correct sizing prevents long-term structural issues.
How the Calculator Works
The tool evaluates three key factors:
- Roof square footage determines total water volume.
- Roof pitch affects how quickly water moves into the gutter system.
- Rainfall intensity impacts drainage capacity requirements.
Based on these inputs, the calculator recommends an appropriate gutter size, typically 5-inch, 6-inch, or larger systems when necessary.
When an Upgrade May Be Needed
Many older homes were installed with 5-inch gutters. Larger roof designs and heavier rainfall events often require 6-inch systems for proper performance.
If you notice water spilling over during storms or pooling near the foundation, your current system may be undersized.
Professional Gutter Evaluation
T.A. Hughes provides no-obligation gutter inspections throughout South Jersey.
Frequently Asked Questions About Roof Inspections in New Jersey
Not always — but larger roofs, steeper slopes, and heavy rainfall areas often benefit from 6-inch systems.
In areas with tree coverage, yes. They reduce maintenance and prevent overflow caused by debris.
Humidity, freeze-thaw cycles, wind-driven rain, and coastal salt exposure all accelerate wear. Shaded homes may retain moisture longer, increasing mold and joint stress.
Most homes need one downspout every 30–40 feet of gutter. Larger systems may require more.
Yes. Overflowing water can saturate soil near your foundation, leading to settlement and basement moisture issues.
Need Financing?
Affordable Payment Plans for Your Roofing Project
More Than Just Roofing — Explore Our Full Range of Exterior Expertise
From expert roofing and durable siding to energy-efficient windows and flexible financing, we offer more than just a roof over your head. Our full-service exterior solutions are designed to protect, enhance, and increase the value of your home—backed by the craftsmanship and care South Jersey homeowners have trusted for over 45 years.
Roofing
We specialize in full roof replacements, shingle roofing, and storm damage repair using premium materials backed by warranties. Designed for South Jersey weather.
Free estimates. Financing available
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Siding
We install vinyl, insulated vinyl, and composite siding that resists South Jersey’s wind and humidity. Color-matched. Long-lasting curb appeal.
Dozens of colors.
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Windows & Doors
Replacement windows and doors that improve insulation, reduce noise, and elevate your home’s look.
ENERGY STAR® Rated. Installed with care.
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Outdoor Structures
Custom-built outdoor roof structures, porches, and covered spaces that blend seamlessly with your home—built for shade, comfort, and value.
Permits handled. Built to code.
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Financing
Big upgrades don’t have to mean big stress. We offer flexible financing options that help you get the roofing, siding, or exterior improvements you need — without delay.
✔️ Low monthly payments
✔️ Quick approvals
✔️ Work with trusted local lenders
Let’s talk through what works for you — no pressure.
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What People’s Say About
T.A. Hughes III
T.A. Hughes fixed our storm-damaged roof within 24 hours. Honest, reliable, and professional—highly recommend!”
John D.,
“We had new siding and gutters installed—flawless work and excellent communication throughout.”
Lisa R.,
“T.A. Hughes replaced our roof in one day and left everything spotless. Fast, friendly, and super reliable service from start to finish!”
