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Thinking about replacing the siding on your home? The first step, getting accurate measurements, is also one of the most important. A miscalculation here can snowball into wasted materials, unexpected costs, and major installation delays. That’s why homeowners throughout Maryland trust RoofPRO to handle it right from the start.
Whether you’re budgeting for new siding or planning a full exterior upgrade, here’s what you should know about measuring your house, and why working with a pro can make all the difference.

Why It’s Smart to Hire a Siding Professional Like RoofPRO
Sure, measuring your house for siding sounds simple. Just grab a tape measure, jot down a few numbers, and plug them into a calculator, right? Not quite. There are lots of details that can easily be missed if you’re not experienced in exterior measurements.
Here’s why homeowners choose RoofPRO to take the guesswork out of it:
- Accuracy You Can Count On: We measure every inch of your home’s exterior with precision, accounting for trim, gables, eaves, and unusual architectural details that are often overlooked.
- We Catch the Details DIY Misses: Small errors lead to big problems. We ensure nothing slips through the cracks, literally.
- Faster, Safer, and Less Stressful: No ladders, no second-guessing. We do the climbing, calculating, and planning so you don’t have to.
- Tailored Siding Solutions: Once your measurements are complete, we’ll help you choose the best siding material for your home and budget, vinyl, fiber cement, wood, composite, and more.
- Free, No-Obligation Quotes: You’ll get a clear, accurate estimate based on real measurements. No pressure, no surprises.
Steps to Measure Siding (If You Still Want to Try It Yourself)
We always recommend having a professional handle your siding measurements, but if you’re curious how the process works, here’s a general overview:
Gather the Right Tools
- A long tape measure (50 ft or more is ideal)
- A sturdy ladder
- A calculator
- Graph paper or a sketch of your home
- Pencil or marker for notes
Break the House into Sections
Visualize each wall as its own rectangle. Then break down any unusual shapes (like gables or dormers) into triangles or other easy-to-measure forms.
Measure Each Wall
Measure the width and height of each wall. Multiply the two to get square footage. Repeat for every exterior wall.
Account for Gables and Triangles
Measure the base and height of each gable. Then use the triangle formula:
Base × Height ÷ 2 = Area
Subtract Windows and Doors
Don’t forget to subtract the area of all windows and doors. Measure each one and subtract the total from your wall square footage.
Add a Waste Factor
Siding materials require cuts, overlaps, and some margin for error. Add 10% to your total to account for this.

Common Mistakes When Measuring for Siding
Homeowners who try to measure on their own often make the same avoidable mistakes:
- Forgetting about trim, fascia, and soffits
- Misjudging angles and gable sizes
- Not subtracting window and door areas accurately
- Skipping waste allowance, leading to reorders and delays
RoofPRO’s team is trained to spot and solve all of these issues before they become costly problems. Let us take the burden off your shoulders and make sure your siding project starts with precision.
Why RoofPRO is Maryland’s Trusted Siding Expert
We’ve been serving homeowners across Maryland for over 20 years, delivering high-quality siding installation, repair, and replacement. Our team is licensed, insured, and committed to getting every detail right, starting with your measurements. When you choose RoofPRO, you’re getting:
- Local experts who know how to handle Maryland weather
- Accurate measurements using professional tools and methods
- Personalized material recommendations based on your home’s needs
- Transparent pricing and no sales pressure

Let RoofPRO Handle the Siding Measurements for You
If you’re thinking about new siding, don’t take chances with a tape measure. RoofPRO offers free, professional measurements so you get exactly what you need.
Call today or request an appointment online to schedule your free siding estimate. We’ll make sure your home gets the right fit, the right material, and the right team to install it.
Frequently Asked Questions
Because we’ll get it right the first time. Accurate measurements are key to avoiding material waste and surprise costs. Plus, our estimates are free.
No problem. We specialize in complex layouts, multi-level homes, and older properties with quirks. We’ve seen it all.
Yes. Different materials (like vinyl, fiber cement, or engineered wood) require different considerations for overlaps, expansion, and trim. We factor all that in.
Most homes can be fully measured in about 30–60 minutes, depending on size and complexity.
Yes! We’ll provide a clear, written estimate for your siding installation after completing your measurement, no strings attached.

Protecting Your Maryland Home from Siding Leaks
Siding leaks might start small, but they can lead to big problems. The key is catching them early, sealing gaps, and keeping up with maintenance. And if things get out of hand? RoofPRO has your back, just give us a call. We’re here to keep your home dry, safe, and looking great.