12
12"
(30,5 cm)
12"
(30,5 cm)
Support seam.
Measurements to
• 3" Screw angled into 4x4.
• (2) at each point frame
and 4x4 contact.
4x4 Runners
FLOOR LEVELING OPTIONS
• Level under 4x4 runners only.
• Locate leveling material 12" from ends of runners and no more than 48" apart.
• Asphalt shingles should be used between 4x4 runners and blocks or treated lumber.
Never use shingles in direct contact with ground.
• For best results and aiding in water drainage use gravel under each concrete block.
• If you are building your shed on a concrete foundation see the following page.
CONCRETE
Gravel
2x4 Treated Lumber
Solid Masonry Blocks in 1", 2", 4" or 8" thickness
Asphalt Shingles
8" Block
4" Block
Gravel
Gravel
Do not exceed 16".
4x4 Runner
Shingle
Shingle
Maximum between leveling
material locations.
48"
12"
2x4 Treated Lumber
2" Block
Level
12"
PREFERRED METHOD - 4x4 TREATED RUNNERS
MATERIAL REQUIRED
x4
(3" Screws shown as one option.) Minimum (70) 3" screws / exterior grade.
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