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A solid foundation is necessary to prevent settling and tiling of each project. We recommend using a
leveling pad, unless local building code requires you to pour a concrete foundation or build another type
of foundation.
***Fire rings should be placed on stone, dirt, or sand surfaces. Pavers or concrete can be
installed around fire rings, but should not be under fire rings. Fire Rings should not be placed on wood
or composite decking surfaces.
FOUNDATION:
• Choose the location for the completed project; place and mark the position of the base layer of blocks.
Once marked, remove the blocks and the organic top soil within the marked area.
• If applicable to your area, create a leveling pad with a non-frost susceptible, well graded, compacted
angular gravel-sand mixture with fines (GW as per ASTM D248). The leveling pad should be a minimum
of 4" to 6" thick. For leveling pads greater than 8” thick, the fill material shall be placed in more than
one lift. Each layer or lift of fill material shall be leveled and compacted to a 95% Standard Proctor
density before moving on.
• Once the top layer of fill material is compacted and level, place the base layer of blocks. The base layer
should sit 1" to 2" below grade to help further prevent shifting. Use additional fill material to level the
base layer as needed.
* If a concrete slab is required, prepare a leveling pad using the procedures listed in the paragraphs above. The concrete
shall have a minimum compressive strength of 2500 psi. A 4" thick concrete slab should be more than sufficient.
A thickened edge and reinforcement of the leveling slabs may be required. Please consult a professional engineer for
specific requirements.
TIPS FOR BUILDING LEVELING PADS:
It is the responsibility of the owner to ensure compliance with all applicable laws, codes and regulations for
any project. Proper safety precautions must be taken prior to and during the construction of each project.
Please follow standard safety guidelines and wear necessary protective equipment when building and using
your new backyard addition.
RESPONSIBILITIES:
• Please research and
follow local building codes
prior to the excavation,
construction and assembly
of your project.
• Exercise caution when you
work with concrete block
designs. Wear protective
safety equipment such as
safety glasses, dust masks,
gloves and a hard hat.
• Whether you plan to build
the project yourself or to
hire a professional, every
project requires a call to
mark your utility lines.
BEFORE YOU BEGIN:
Rubber Mallet
Level
Utility Knife
Caulk Gun
Protective Equipment
Tape Measure
TOOL CHECK LIST:
