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Internet # 314837644

Model # IS16-R

Store SKU # 1006452316

15-1/2 in. Insulation Support (100-Pack)

$22.00
/package
Buy 8 or more $19.80
  • Secure insulation in 16 in. on-center joist spaces
  • Carbon steel build offers lasting insulation support
  • Ensure proper insulation with 15-1/2 in. supports
  • View More Details

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Product Details

About This Product

Keep your insulation firmly in place with Simpson Strong-Tie insulation supports. The insulation supports are cut from carbon steel, spring wire for optimum flexibility and strength. Mitered tips dig into the wood, securing itself and insulation when installed between joists.

Highlights

  • Install between joists
  • For 16-in on-center spacing
  • Follow insulation manufacturer's installation instructions
  • Wear safety glasses, gloves and other appropriate safety equipment
  • Diameter: 0.086-in
  • Length: 15-1/2 in.
  • Made from 14-Gauge steel
  • Quantity: 100
  • Shop all Simpson Strong-Tie products
  • Return Policy

Product Information

Internet # 314837644

Model # IS16-R

Store SKU # 1006452316

Specifications

Product Width (in.): 15.5 in

Dimensions

Product Width (in.)

15.5 in

Details

Insulation Accessory Type

Insulation Support

Insulation Features

No Additional Features

Insulation Type

Accessory

Number of Pieces

100

Pack Size

100

Returnable

90-Day

Warranty / Certifications

Warranty Information

Limited Warranty

Questions & Answers

Can I use these 2" apart to hold up blown in insulation? 300 per bedroom should do it.
BySep 7, 2025
1 Answer | 
Answer This Question

Hi IgnantByroni, this is Lexus from Simpson Strong-Tie. Thank you for your inquiry about our IS16-R item! We want to ensure your question is addressed thoroughly, so we kindly ask that you contact our Simpson Strong-Tie Customer Service Team at 800-999-5099 for direct support. We look forward to assisting you!

By|Sep 8, 2025


    Will these support 2 inch foam board insulation in floor joists?
    ByMar 17, 2025
    1 Answer | 
    Answer This Question

    Hi TheDude, this is Lexus from Simpson Strong-Tie. Thank you for reaching out about our item IS16-R! To ensure we provide the most accurate information, could you please give our Simpson Strong-Tie Customer Support team a call at 800-999-5099? We’d be happy to discuss whether these will support 2-inch foam board insulation in floor joists.

    By|Mar 17, 2025


      To use the support ties do you need any speciality equipment? Or just stitch it in the wood?
      ByDec 1, 2024
      1 Answer | 
      Answer This Question

      Hi HelpNeeded, this is Bekah from Simpson Strong-Tie. The IS16-R do not require any special tools though eye protection and gloves are recommended when working with insulation. The mitered tips will dig into the wood securing themselves. If you need more information or have additional questions, please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. We look forward to hearing from you.​​

      By|Oct 15, 2025

        (2)

        are these galvanized? Do they rust?
        ByOct 19, 2024
        1 Answer | 
        Answer This Question

        Hi Chuck, this is Bekah from Simpson Strong-Tie. The IS-16 Insulation Supports do not have any corrosion finish on them. They are to be used in a dry interior environment. If you need more information or have additional questions, please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. We look forward to hearing from you.

        By|Jul 7, 2025

          (1)

          For each batt 48" ...... How many pieces recommend?
          ByJan 8, 2024
          1 Answer | 
          Answer This Question

          Carlos, this is McKenzie from Simpson Strongtie. We carry the IS16-R which is 16" on center, and the IS24-R is 24" on center. We recommend you follow insulation manufacturers installation instructions. Thanks.

          By|Jun 28, 2025

            (2)

            Will these hold up both fiberglass batts and blown in cellulose?
            ByOct 16, 2023
            1 Answer | 
            Answer This Question

            Good morning Quinn, this is McKenzie with Simpson Strong-Tie. The installation supports wouldn't be able to restrain cellulose if it doesn't harden after installation. The IS is just a small metal dowel to hold installation batts in. For additional information please don't hesitate to reach out at 800-999-5099.

            By|Jul 7, 2025

              (1)

              Hello. Can these be used on the backside of a basement exterior wall to hold the fiberglass insulation off of the concrete foundation? The insulation is currently making slight contact with exterior foundation and I thought these could help.
              BySep 26, 2023
              1 Answer | 
              Answer This Question

              Hi Steve, this is Colin from Simpson Strong-Tie. The Insulation Supports (IS) have mitered tips to dig into the wood, securing itself and insulation when installed between joists. They are designed for supporting insulation between wood joists. Outside of that installation method we do not know how those would perform. If you need more information or have additional questions, please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. Thank you.

              By|Jul 7, 2025

                (2)

                How far apart should the supports be placed in a ceiling application?
                ByMar 22, 2023
                1 Answer | 
                Answer This Question

                Hello Ericka, this is Stacy with Simpson Strong-Tie. For the IS16-R we state these needs to be installed 16" on-center. If you have any questions please call us at (800) 999-5099. We look forward to speaking with you.

                By|Nov 8, 2025

                  (5)

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                  Customer Reviews

                  4.6 out of 5

                  • 4.6 out of 184 reviews
                  • 50% recommend this product
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                  Worked perfect! Firm and easy to use. Packaging was great. Timely delivery. Plenty of strength to hold material
                  by
                  These worked great to help me insulate my basement! They are sturdy and I recommend them.
                  by
                  Super easy to use makes completing the job really quick...
                  Super easy to use makes completing the job really quick
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                  quick way to hold interior/exterior wall insulation in on vertical walls!
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                  The product works and is strong
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                  Our business uses these bars regularly and they are great, consistent and reliable.
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                  Showing 1-10 of 184 reviews