OctoBlock 48" - Industrial Welding Table

Material Thickness
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Every CertiFlat OctoBlock octagonal table is made from high-strength HRPO (Hot Rolled Pickled and Oiled) steel, providing unparalleled durability and resistance. We offer these in three thickness variants - 1/4", 3/8", and 1/2". Engineered with Tab & Slot stiffening ribs, each table promises a flat surface, guaranteed.

The working surfaces on all nine sides offer unlimited configurations and adaptability. A consistent 16mm hole pattern is standard on all tables, compatible with industry-standard 16mm & 5/8" tools. You also have the option to request for threaded holes and 28mm holes for more custom needs.

Our parts fit perfectly, thanks to the precision of CNC laser cutting used in all components. All parts within your kit will have a very high precision of +/- .003". Additionally, our proprietary "Heat Control Design" eliminates the risk of warping during assembly. With our OctoBlock tables, achieving flatness to +/- .015" is no challenge if you use care during assembly!

Standard OctoBlock tables come in 1/4" thick material with industry-standard 16mm tooling holes on 2" centers. We also offer the option to upgrade to 3/8" and 1/2" thickness for a nominal charge. Tables with the threaded hole option have holes threaded at 3/8"-16 for the 1/4" thick tables and 1/2"-13 threaded holes for the 3/8" and 1/2" thick tables. You can choose either all threaded holes or every other hole (where every other hole is a 16mm).

We believe in empowering you with the opportunity to invest your time and craftsmanship into your new tool. We deliver a production-quality part at hobbyist prices.

IMPORTANT: Please note that OctoBlock Fabrack kits are sold separately. You can find the compatible CertiFlat Fabrack 32" x 32" here: FB3232-U.

You're a welder - now go weld something!

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 a max price $99.99.
  • FabBlocks MUST ship freight, that rate is $99.99 to a commercial address or terminal or $129.99 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 Sales@weldtables.com


-PRO Table Tops

  • Made from HRPO A36 Steel
  • 2” tall rib support structure
  • 3/16” thick top and rib structure
  • Tab and Slot Design for easy assembly
  • Laser cut for tight tolerances
  • 16MM holes for clamps and fixtures
  • No option for expansion


  • Same material and tolerances as PRO Top
  • 4” deep rib structure and sides
  • 3 Dimensional work surfaces on 5 sides
  • Compatible with fabWings, Vise Mount, and most side mount accessories
  • Can be bolted together for near unlimited configurations!
  • Heavier duty than PRO Tops


  • Same material and tolerances as PRO’s and Mini’s
  • 6” or 8” deep rib structure (length dependent) for strength and flatness
  • Available in ¼”, 3/8” or ½” material.
  • Increased stiffness – full torsion box design.
    Available with 16MM or tapped holes. (3/8”-16 or ½”-13 thread available depending on thickness)

Note: The FabBlock and mini-block have sides with our standard hole pattern, and can be expanded by either using our fabwings or by bolting multiple blocks together. The options for sizes and configurations are essentially endless with the Mini-Block and FabBlock style tables!


  • The pro tables use one of the heavy duty leg kits.
  • Mini-Blocks, FabBlocks, and plasma tables use our FabRack.
    • The FabRacks can be purchased with or without casters.


  • We do not offer the pro table in thicker material. Due to the rib structure design, they are limited in size (largest 3x4) and thickness.


  • Threaded holes are very convenient for bolting your fixtures or our accessories to the table. Threaded holes are the quickest way to set things up on the table.
  • When you order threaded holes, the sides of the table will have the threaded pattern as well.
  • Pro tables are not available with threaded holes as there is not enough material. To attach accessories to the pro tables you would want to use parts FBN-2 and FBS-2, the fabnut and fabnut locating spacer washer.


  • We do have a 4-pack of squares available at a discount, parts VFS-2 and VFS-4. All other accessories are a la carte.


  • Fabnuts are threaded and have an o-ring. They insert into the 16MM hole from the underside of the table and are held in place by the o-ring.
  • The fabspacer fits in the 16MM holes on our accessories and allow you to get accurate placement with a 3/8-16 bolt.


  • We do offer in house assembly by our pro welders. The cost depends on the size of table or accessory.
  • For rates contact admin@tabandslot.com


  • It depends on our workload, currently about 4-6 weeks to ship on all tables except ProTops.
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Need Help? Call Us at 651.800.4877