Shed reference charts
Nine computed tables that answer the numbers questions behind a shed purchase, each linked to the calculator that lets you change the assumptions.
Shed size chartEvery common shed size from 3x6 to 16x20 with square footage, whether a lawn tractor fits, how many mowers, bikes and trash cans fit, and permit status.Equipment footprint chartParked footprints for lawn tractors, zero-turns, push mowers, snow blowers, bikes, wheelbarrows and more, with the shed floor and door width each one needs.Gravel for a shed pad, by sizeCubic yards and tons of crushed stone for a shed gravel pad at 4 and 6 inches deep, for every common size from 3x6 to 16x20, with weed fabric.Concrete for a shed slab, by sizeCubic yards and 80 lb or 60 lb bags of concrete for a 4 or 6 inch shed slab, for every common shed size, including 10 percent waste.Shed roof pitch chartRoof pitch from 1/12 to 12/12 in degrees, the rafter length multiplier, ridge height for 8, 10 and 12 ft wide gable sheds, and which roofing each pitch allows.Shed roof snow load tableEstimated design roof snow load for an unheated storage shed at ground snow loads from 10 to 100 psf, by roof pitch and surface, using the ASCE 7 method.Shed paint coverage chartGallons of paint or stain for two coats on common shed sizes, by siding type: smooth primed siding, T1-11 plywood, rough cedar and metal panels.Shed permit size thresholdsEvery common shed size checked against the 100, 120 and 200 sq ft permit exemptions. General guidance: always check your local code.Shed cost per square footMedian, low and high price per square foot of shed kits on Amazon by material, measured from real listings, with what an 8x10 and 10x12 cost at the median.
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Prices change often; the button shows today's price on Amazon.
This page is researched guidance, not professional engineering, legal or building-code advice. Sizes, loads and permit rules vary by product and by town: check your local code and the kit manufacturer's instructions before you build.