OLT SpaceSaver SS124-SLIDER-CEDAR-FJ Assembly Manual page 3

141 1/2"
Concrete Foundation
Concrete Slab Foundation:
- Slab must be at least the same size as assembled floor frame (45 1/2" x 141 1/2") or larger.
- 6" Deep foundation.
- 0.9 Cubic Yards of concrete required.
- A concrete slab will have the longest durability out of your foundation options.
Once level, a concrete slab is the easiest surface to build on.
153 1/2"
Gravel Foundation
Gravel with 4x4 Pressure Treated Stringers:
- Excavate at least 6" deep, and 6" wider than floor frame on each side.
- 1.2 Cubic Yards of gravel required, approximately 11 wheelbarrows.
- 3 - 4x4 Pressure Treated Stringers 12' long required.
- Evenly spaced, with one at each end of floor frame.
Saves money on materials, easy to level and work with.
153 1/2"
Gravel Foundation
Gravel with Patio Paver Stones:
- Excavate at least 6" deep, and 6" wider than floor frame on each side.
- 1.2 Cubic Yards of gravel required, approximately 11 wheelbarrows.
- 21 patio pavers (8" x 8" or larger).
- Center patio paver stones underneath floor runners and underneath seams in floor joists.
Patio paver stones are widely available from most landscape stores.
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Foundation Types for 12x4 Garden Shed
45 1/2"
Floor Frame
57 1/2"
Gravel Foundation with treated stringers
21 Patio Stones
57 1/2"
Gravel Foundation with Patio Pavers
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141 1/2"
45 1/2"
17 1/2"
Page 3
Completed Foundation
Completed Foundation
Completed Foundation
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