Idaho Seamless Gutter
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What Are K-Style Gutters?

Ben Beers

Owner, Idaho Seamless Gutter · Gutter contractor since 2017

What Are K-Style Gutters?

If you have ever wondered why the most common gutter shape in Idaho is called "K-style," the answer traces back to an industry group, not a marketing team.

Where the Name Comes From

The Sheet Metal and Air Conditioning Contractors' National Association, known as SMACNA, is an international trade association that helped set standards across the sheet metal industry, including gutter profiles. When SMACNA catalogued the different gutter shapes available, the eleventh profile on the list was assigned the letter "K," and the name stuck.

Why It Is So Popular

K-style gutters have a finished look, similar to crown molding, that pairs well with almost any home style. Beyond looks, the profile is efficient at catching and moving water toward downspouts, which is the entire point of a gutter system in the first place.

We install K-style gutters in both 5 and 6 inch sizes, in aluminum or steel, and in more than 25 colors. Which size is right for your home depends on roof square footage, pitch, and local rain intensity, which we calculate at your free assessment rather than guess.

K-Style vs Box Gutters

Box gutters are a newer addition to our lineup: a flatter, more modern profile common on commercial buildings and increasingly requested on residential homes. Box gutters often pair with round downspouts instead of the traditional rectangular style. Both profiles are formed on site to your exact roofline, so either way you get a seamless system with no mid-run joints.

Ben Beers

Ben founded Idaho Seamless Gutter out of a shop in Greenleaf, Idaho in 2017 after years of experience in roofing and remodeling. He still runs estimates and installs alongside the crew.

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Our process

How it works

The same well oiled process on every job, whether it is your first call or your fifth.

  1. 01

    Free On-Site Assessment

    Ben or a trained crew member measures your roof, checks your existing gutters, and talks through what your home actually needs.

  2. 02

    Custom Measurements

    We use the SMACNA gutter and downspout sizing calculator along with local NOAA rain data to size your system correctly, not just eyeball it.

  3. 03

    On-Site Fabrication

    Your seamless gutter is formed to the exact length of your home right in your driveway. No seams, no leaks at the joints.

  4. 04

    Install & Walkthrough

    Our crew installs your system, then walks the property with you before we invoice, so there are no surprises.

  5. 05

    Lifetime Follow-Up

    If anything about our workmanship ever fails, we come back and make it right under our lifetime no leak guarantee.