CertiFlat 8"X8"X3" Adjustable FabSquare

Adjustable FabSquares are CertiFlat's newest product. All Adjustable FabSquares were designed with you in mind. We wanted a tool to be able to help set-up multiple weldments with many configurations. FabSquares make set-ups quick and easy.

Here at Weldtables.com, we designed an adjustable square that can do more than just a 90° or a 45° joint. We designed this Adjustable Square to cover any angle you want and also lock into those standard angles to make your life in the shop simpler.

All fabSquares feature the following:

  • CNC Laser Cut for accuracy. +/- .003" is held throughout the manufacturing process
  • Ultra-Strong 1/4" Thick A36 HRPO Prime Steel
  • Fit 16MM and 5/8" Tooling Holes and Tables
  • Multiple Angles
  • Multiple ways to use
  • Hardware included for assembly with Square

Our Adjustable FabSquare with a 6” edge for stopping and multiple angles for adjustment for any type of work. We laser our proprietary, combo-slot/hole in this tool, for more options as you build. With many ways to mount this tool, the options are infinite.

Guaranteed for life, FabSquares are a tool you just can't live without.

The perfect complement for your CertiFlat Weld Table.

Unless you are making arrangements to pick up your purchase, all items require shipping.

How much is it to ship?

  • Shipping is currently flat rate and it depends on the weight. All pro tables can ship UPS to your door for max $69.99.
  • FabBlocks MUST ship freight, that rate is $69.99 to a commercial address or terminal or $99.99 for a residential delivery with liftgate.
  • Depending on where you live, the largest block we can put on a liftgate is 4’x8’. Some areas are limited to 90” length.

Most certiflat items are very heavy. UPS has a weight limit of 150lbs.

  • Our pro table line, and 24x36/24x48 mini blocks can be split up and ship in multiple boxes via ups.
  • The 36x48 mini block and regular fabblocks need to ship freight due to number of parts and weight.
  • Fabblocks smaller than 60" can be delivered to a residential address with a liftgate, anything larger will either need to go to a shipping terminal for you to pick up, or delivered to a commercial address with a dock/forklift.

Home based businesses and farms do not qualify for commercial status even with a forklift.

  • We will be flagged with a residential delivery and residential delivery must be purchased when adding products to your shoppinng cart.
  • The flat rate shipping offers are to the lower 48 contiguous states.
  • We also ship to alaska, puerto rico, haiwiaii, canada & mexico, contact us for a quote.


  • Call or text us at 651.800.4877
  • Email us at admin@tabandslot.Com
Customer Reviews
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Filter Reviews:
    Joe W.
    United States United States

    Awesome and easy

    Just got the square about 2 weeks ago and love it so far.

    Esteban P.
    United States United States

    Excellent kit. Slow down and build right.

    Excellent kit. Needed one. Bought two. Built one so far. I took the time to square things up with multiple starrett squares and bam this adjustable square came out great! Sure it can be assembled in 10 minutes but if you take 25 minutes it can come out very accurate.

    Emmanuel P.
    United States United States


    Was easy to assemble and I put it right to work. Like having an extra set of hands.

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    Need Help? Call Us at 651.800.4877