Life & fun · alternatives · 2026

24 alternatives to Hi-Impact Utility Duct Spacers

Duct Spacers

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Hi-Impact Utility Duct Spacers launched in 2020; newer entries below may have overtaken it.

1. 1
   Duct Projectile / Line Carriers▲1

   Available in five sizes with solid mating guaranteed

   2021 · its alternatives →

2. 2
   Boost.space▲548

   If Airtable & Zapier had a baby & came up with lifetime deal

   2023 · its alternatives →

3. 3IB
   I built an under-the-door fan duct to lower bedroom CO2▲64

   Hi HN, This is my attempt to fix groggy mornings by lowering my bedroom CO2 from 1700 ppm to ~900 ppm. I designed a simple, 3D-printed fan duct that directs air under the door to improve air circulation. A note on the design process: I used CadQuery, a Python library for creating parametric 3D models. I didn't know tools like this existed and highly recommend it if you can program; it turned out to be more convenient than manually iterating on prototypes in a GUI. The project is open source and the post explains the full build. Happy to answer any questions.

   2025 · lepekhin.com · its alternatives →

4. 4
   Spacers.js▲78

   JS library for controlling padding/margin for no-code tools

   2022 · its alternatives →

5. 5
   SpaceAgent▲175

   Easily share and lease commercial property

   2023 · its alternatives →

6. 6
   FieldCalc HVAC▲8

   Offline HVAC calculator: R-454B PT, superheat, duct, load

   Jul 2026 · apps.apple.com · its alternatives →

7. 7
   Rectangular grease duct- DuraSystems ▲1

   grease duct, grease duct access door

   2020 · its alternatives →

8. 8
   Spacement▲9

   Where property owners meet solar, EV and vending operators

   Aug 2026 · spacement.co · its alternatives →

9. 95S
   50x50.space a public board to doodle together▲39

   2022 · 50x50.space · its alternatives →

10. 10
    Trade Tools - Free tool for Construction▲3

    Pipe, concrete, electrical & tile calculators — free

    May 2026 · pipesizecalculator.com · its alternatives →

11. 11
    Air Tumble▲6

    Air Tumble™ Track Gymnastics Home Basic

    Nov 2025 · airtumble.co.uk · its alternatives →

12. 12
    HVAC Tools Hub▲4

    Free HVAC calculators and practical reference tools

    Aug 2026 · hvactoolshub.com · its alternatives →

13. 13
    Spacer: Add or Remove Space▲7

    Design elements of a store by changing vertical space

    2025 · apps.shopify.com · its alternatives →

14. 14
    Blogs▲3

    Ductinghub

    2025 · its alternatives →

15. 15
    TradeHub Tools▲1

    Free NEC Electrical and HVAC Field Calculators

    May 2026 · its alternatives →

16. 16
    Amtico - HT (15ltr)▲2

    Amtico adhesive with high resistance to temperature .

    2020 · its alternatives →

17. 17
    Tonnage Calculator AC▲2

    Find the Right AC Size & BTU Needs

    Jun 2026 · tonnagecalculatorac.com · its alternatives →

18. 18
    Brass fittings▲1

    Brass fittings for underfloor heating systems

    2024 · its alternatives →

19. 19
    Weld Size Calculator▲1

    Know your size before you strike an arc.

    Aug 2026 · site-pi-five-49.vercel.app · its alternatives →

20. 20
    Air-Duct-Cleaning-LA▲1

    Air duct cleaning,

    2022 · its alternatives →

21. 21
    Sauna Heater Size Calculator▲9

    Find the Perfect Sauna Heater Size for Optimal Heat!

    2025 · topture.com · its alternatives →

22. 22
    HVAC Admin ▲2

    Free tools & knowledge hub for HVAC techs

    Feb 2026 · hvacadmin.com · its alternatives →

23. 23
    Dumpster Size Calculator▲6

    Find the right dumpster size for any project

    Oct 2025 · its alternatives →

24. 24
    How Much Concrete Do You Need?▲3

    Slabs, Footers, Walls, Columns, Steps, Curbs, Gutters.

    Jan 2026 · howmuchconcrete.webflow.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →