## How do you estimate a roof?

To do this, measure the length and width of each plane on the roof, including dormers. Then, multiply length x width to get the square footage of each plane. Finally, calculate your roof’s total square footage by simply adding the square footage of each of the planes together.

### How do I calculate roofing materials?

To estimate roofing materials, **start by finding the total square footage of the roof and divide the number by 100 to determine the number of “squares” in the roof**. Since it takes 3 bundles of shingles to cover a square, plan to purchase 3 bundles for each square. Then, add 10% to the number to account for waste.

### How do I calculate the square footage of my roof?

For an easy up-and-over, walkable gable roof, you’ll **multiply the footprint of the roof by 1.3** to get the square footage of your roof. For a hip roof with a low slope, you’ll multiply the footprint of the roof by 1.4 to get the square footage of your roof.

### How many bundles are in a square?

There were **four bundles** to a square. Around 850 bundles of shingles will be needed for 28000 square feet of roof, if you use some of the heavier roofing. There are two answers. 3 bundles per square is the average for “normal” architectural shingles.

### How do you convert square footage to roofing squares?

Roof surfaces are measured in “squares.” A square is an area of roof which measures 100 square feet. To determine the number of squares on the gable roof above, simply **divide its total of 24,000 square feet by 100**.

### How many squares are in 1800 square feet?

18 squares. A roofing square is equal to 100 feet on your roof. If your roof measures at 1800 square feet, you would need **18 squares** of shingles to cover your roof.

### How many shingles do I need for a 2000 square foot house?

The surface area of your roof will affect the number of bundles or squares you need. A 2,000 square foot roof requires **20 squares or 60 bundles**.

### How many shingles do I need for a 8×12 shed?

For a 8×12 shed roof, you will need approximately **6 bundles or 174 pieces of three tab strip standard-sized shingles** (12 inch by 36 inch) when overhangs is 1 feet and roof slope is 6/12. Thus to cover roof of 8×12 shed, 6 bundles or 174 pieces of shingles will be needed.

### How many shingles do I need for a 12×12 shed?

The average size of 12×12 shed roof is 3 squares, which typically requires **9 bundles** of three-tab asphalt shingles or any other starter strips.

## How much would it cost to build a 12×12 storage shed?

On average, a shed costs **between $20 and $175 per square foot** to build.

Cost Estimator by Size.

SHED SIZE | TYPICAL COST RANGE |
---|---|

10×12 (120 sq. ft) | $2,400 to $21,000 |

12×12 (144 sq. ft) | $2,880 to $25,200 |

10×16 (160 sq. ft) | $3,200 to $28,000 |

12×16 (192 sq. ft) | $3,840 to $33,600 |

### Is it cheaper to buy or build your own shed?

If you’ve been wondering is it cheaper to build your own shed, you’ll discover that yes, **it is less expensive to build your own shed than to purchase a pre-built shed**. That is at least if you have all the tools required to build the shed. Typically, it won’t take many specialty tools to build the shed.