9×9 Foundation Stones
The 9×9 Foundation Stones serve as the primary structural component for load-bearing masonry and substructure walling in residential and commercial projects. These natural volcanic tuff units provide the necessary compressive strength required for stable footings. Each block undergoes a mechanical cutting process to ensure uniform dimensions across the batch, facilitating faster alignment during the walling phase.
Built for the Job
Contractors utilize these 9-inch blocks specifically for foundation courses where the wall thickness must accommodate the transfer of vertical loads to the concrete footing. The machine-cut finish reduces the volume of mortar required compared to hand-dressed alternatives. This precision ensures that the courses remain level throughout the rise of the substructure. These units are suitable for both below-ground applications and plinth-level masonry where structural density is a priority.
- Construction of primary load-bearing foundation walls for multi-story buildings.
- Building retaining walls designed to resist lateral soil pressure on sloped sites.
- Erecting heavy-duty boundary walls and industrial enclosures requiring high mass.
Product Highlights
- Dimensional Accuracy
- Mechanical sawing ensures consistent 9-inch height and width profiles to minimize leveling adjustments during installation.
- Structural Integrity
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- High compressive strength suitable for multi-course substructures.
- Natural stone composition offers superior fire resistance and durability.
- Low porosity reduces capillary action and moisture ingress in damp conditions.
9×9 Foundation Stones Technical Specifications
| Specification | Detail |
|---|---|
| Nominal Width | 9 Inches (225mm) |
| Nominal Height | 9 Inches (225mm) |
| Typical Length | 18 Inches (450mm) |
| Material Type | Machine Cut Volcanic Tuff |
| Finish | Six-sided Machine Saw Cut |
What’s Included
- Single Unit 9×9 Machine Cut Foundation Stone
On-Site & Workshop Notes
- Ensure the first course is laid on a level concrete strip footing with a 1:3 cement-sand mortar mix for maximum stability.
- Wetting the masonry units prior to laying prevents the stone from drawing moisture out of the mortar too quickly.
- Store these materials on flat ground to prevent accidental chipping or cracking of the edges during site staging.
- Verify local building code requirements for compressive strength grades if used for structures exceeding two stories.
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