Category: Guides
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How Thick Should a Concrete Slab Be? Patio, Driveway and Shed Guide
Quick answer: for a typical residential driveway the Concrete Network gives 4 inches as the minimum thickness, and says going to 5 inches can add nearly 50% more load capacity for roughly…
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How Much Sand and Base Do I Need Under Pavers?
Quick answer: a paver patio is a three-layer system: compacted soil, a compacted aggregate base, and a 1 inch bedding sand layer under the pavers. The Interlocking Concrete Pavement Institute (ICPI) Tech…
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How Much Sod Do I Need? Rolls, Pallets and Installation Tips
Quick answer: measure the lawn area in square feet, add about 5% for cuts and waste, then divide by what one roll or pallet covers. A typical roll covers about 10 ft²…
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How Much Topsoil Do I Need? Cubic Yards, Weight and Coverage
Quick answer: multiply area (ft²) by depth (in feet) and divide by 27 to get cubic yards. One cubic yard of topsoil covers 324 ft² at 1 inch, 162 ft² at 2…
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How to Calculate Roof Pitch, Slope Factor and Roof Area
Quick answer: roof pitch is how many inches the roof rises for every 12 inches of horizontal run. A 6:12 roof rises 6 inches per foot. To find roof area, multiply the…
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How to Calculate Stair Stringers: Rise, Run and IRC Limits
Quick answer: divide the total rise (floor to floor) by the maximum riser height of 7¾ inches and round up to get the number of risers. Then divide the total rise by…
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How Many Concrete Blocks Do I Need for a Wall?
Quick answer: a standard 8 × 8 × 16 inch concrete block covers 0.89 square feet of wall (8 × 16 = 128 in²) once you count its mortar joint, so you…
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How to Calculate Cubic Yards (Rooms, Slabs, Beds and More)
Quick answer: to calculate cubic yards, multiply length × width × depth with every measurement in feet, then divide by 27. A cubic yard is a cube 3 feet on each side,…
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How Much Concrete Do I Need for Fence Post Holes?
Quick answer: a 4×4 post set in a 12 inch wide, 2 foot deep hole needs about 2.3 bags of 80 lb concrete mix, so plan on 3 bags per post. Hole…
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How Many Cubic Yards of Mulch Do I Need?
Quick answer: multiply the bed area (square feet) by the depth (feet) and divide by 27. Illinois Extension recommends mulch 2 to 3 inches deep, and one cubic yard covers about 162…