Building plans for a 42 inch igloo brick pizza oven

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42inch pizza oven
Building plans PDF Building plans for a 42 inch igloo brick pizza oven.pdf


               Concrete slab
               51"x 47 1/4"x 4"

! Foundation block | 4.5 x 4.5 x 4 blocks.

            Hearth foundation (Concrete)
                  47 1/4" x 47 1/4" x 4"

                    Hearth diameter
                     35"  Vault height
              Door height
              Door width
               Flue opening
             15 3/4" x 7 7/8"
          4" diameter by 2' long. 
             8" x 8" x 16"
                Fire brick
                3" x 9" x 4"
              Fire brick half
           3" x 4 1/2" x 4.33"



            General purpose concrete mix
                   38 bags


               Reinforcing steel bar
                    105 lf-
               Cement sheeting
                     6.5 feet
            Scrap wood for the temporary cement dam
                      20 lf-
               General purpose mortar mix
                     10 bags
                  Blocks (7.5" x 7.5" x 16")
                      Steel lintel
                         6.5 lf
               Fire brick (3" x 9" x 4.3") (hearth and door)
             Fire brick half (3" x 4.5" x 4.3") (dome)
                  Insulating fire blanket
                           5 3.5 cubic ft bags
                    Finishing tiles or paint
                              16 lf


  1. 1 Wheel barrow
  2. 1 Concrete mixer
  3. 1 Shovel
  4. 1 Hammer
  5. 1 Non-rebounding rubber mallet
  6. 1 Chalk line
  7. 1 Circular saw (Cutting wood and bricks)
  8. 1 Grinder (Cutting reinforcement steel and besser blocks)
  9. 1 Builders level
  10. 1 Measuring tape
  11. 1 Bricklayers trowel
  12. 1 1/4" by 1/4" (1cm by 1cm) square notched trowel
  13. 1 Builders pencil and paper
  14. 1 Bucket, 1 brush and 1 sponge
  15. Safety equipment. eg. Gloves, dust mask, eye protection, ear protection
  16. Tile saw or tile cutter (If tiling the oven surface)
  17. Paint brush (If painting the oven surface)


           Step 1

Level the ground and place reinforcing steel bars. Lay a 6' x 6' x 4" concrete foundation.

               See Pizza oven foundation out of brick
         Image:Building plans for a 42 inch igloo brick pizza oven_step1.
           Step 2

Lay a 6' x 6' x 2' square of blocks three bricks high. On the front side leave a 1.5 brick gap in the middle to allow for access.

           Step 3

Place steel lintels across the block gap and then lay the top layer of blocks.

           Step 4

Place cement sheeting across the center 55" x 55" space. Place reinforcing steel bars over the cement sheeting. Create a temporary wood dam around the void to contain the cement. Lay a 55" x 55" x 4" concrete foundation. Lay an additional 55" x 55" x 4" vermiculite cement mix foundation for under the hearth.

           Step 5

How to construct a pizza oven dome out of brick:Lay fire bricks] either directly on the concrete foundation or on a thin bed of sifted sand and/or fire clay. This may be left dry or wet to make a paste.

          Step 6

Create a temporary wooden foundation in the shape of the vault. Lay the fire bricks over the temporary foundation to create the dome and How to build a wood fired oven door entrance. Alternatively use a Igloo brick oven leveling tool to help maintain the proper brick angle.

          Step 7

Lay the additional front fire bricks to create the flue.

          Step 8

Raise and level the outside section of blocks to the height of the final fire bricks.

          Step 9

Place fire blanket over the oven dome. Place a 4" thick layer of Wood fired oven insulation vermiculite cement mixture

(5:1) over the blanket.

          Step 10

How to clad a pizza oven Clad over the insulation layer and attach the chimney to the flue.

          Step 11

Finish the oven with a tiled or painted surface.


The creation of an under-hearth foundation that does not sit flush with the outside walls is a distinct step in this plan that is unusual from general oven foundation plans. This may be done to ease the process of creating an in hearth opening for wood ash or minimise the firebricks use. Generally it is recommended that the hearth foundation be laid to sit fully against the outside walls thus reducing the eventual finishing work required. To produce this larger foundation simply create a larger temporary wood form which sits outside and flush against the besser block walls. Support and level this form with 2" by 4" legs and shims as with the internal sheeting structure. This would result in a 1800 x 1800 x 200mm foundation rather than 1400 x 1400 x 200mm.

Anonymous user #1

20 months ago
Score 0+-

I really appreciate all the information provide for free a nice thing to do. I was use forno bravo e-book which was really cheap. But I prefer yours as is clear and no mistakes.

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