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Estimate Shed Materials and Costs

Plan shed framing, siding, roofing and foundation materials in one estimate. Compare roof and foundation options, then download an itemized material-cost PDF.

BOM Automatically Updated

How to estimate shed materials and costs

Enter the shed footprint, assembled wall height, framing spacing, roof style, foundation and exterior options. Review the itemized materials and any incomplete-estimate warnings before buying. This is a material planning tool; it does not design structural assemblies or determine permit requirements.

1

Size & framing

Enter the dimensions of your project.

Common Shed Sizes

Width (ft)

Length (ft)

Assembled Low-Wall Height

Wall Stud Spacing

2

Roof & exterior

Choose the materials for your project.

Roof Style

Rafter Spacing

Eaves Overhang & Soffits

Siding Material

3

Foundation & openings

Set your preferences for purchasing.

Foundation Type

Door Style Includes framing, trim & lock hardware

Include Hurricane Ties (Simpson H2.5A) - High wind/coastal zones

Floor area120 sq ft

Cost per sq ft~$20.40 / sq ft

Estimated materials$2,450Reference retail pricing · before tax and delivery

Estimate assumptions & exclusions

Reference material prices only; verify current supplier prices before buying. Labor, tax, delivery, permits, site preparation and excluded assemblies are not included. Concrete slab pricing is a budget allowance.

This estimator does not design framing or determine permit requirements. Review the project-specific notes below.

Detailed Materials & Cost Breakdown

Itemized quantities, standard purchasable stock lengths & package quantities grouped by category

Total: $2,450

Builder Reference Guide

Common Shed Build Estimates

Compare reference material costs for common sizes and assemblies. This estimator does not design framing or determine permit requirements.

All examples: 24-inch wall stud spacing and rafter spacing, 8-ft assembled low walls, 6-inch overhang, T1-11 panel siding, single DIY door, hurricane ties off. Reference material allowances exclude labor, tax, delivery and permits.

Reference material costs by shed size, roof and foundation
Shed size	Floor area	Gable roof		Lean-to roof		Gambrel roof*
Shed size	Floor area	Skids on blocks	Concrete slab	Skids on blocks	Concrete slab	Skids on blocks	Concrete slab
8 × 10 ft	80 sq ft	$1,958.90	$2,353.80	$1,952.26	$2,371.16	$2,156.55 Incomplete subtotal*	$2,575.45 Incomplete subtotal*
10 × 12 ft	120 sq ft	$2,415.05	$3,002.00	$2,479.97	$3,042.92	$2,714.40 Incomplete subtotal*	$3,301.35 Incomplete subtotal*
12 × 16 ft	192 sq ft	$3,106.20	$4,136.30	$3,149.47	$4,179.57	$3,456.60 Incomplete subtotal*	$4,486.70 Incomplete subtotal*
12 × 20 ft	240 sq ft	$3,687.10	$4,879.30	$3,757.32	$4,949.52	$4,188.50 Incomplete subtotal*	$5,380.70 Incomplete subtotal*

Concrete figures include the calculator’s lump-sum slab material allowance. Skids include the modeled subfloor platform. These are different assemblies, not foundation-only prices.

* Gambrel figures are incomplete material subtotals: truss geometry, bottom chords and connections require a project-specific design and separate pricing.

Compare to Pre-Fab Shed Kits

Compare your material estimate with current pre-cut shed kit prices. Check whether each kit includes the floor, foundation, roofing, hardware and delivery.

The Home Depot — Browse 10'×12' Kits

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Lowe's — Browse 10'×12' Kits

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Wayfair — Browse 10'×12' Kits

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Amazon — Browse 10'×12' Kits

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Links open directly to filtered search results matching your selected shed dimensions.

Rent vs. Buy Tool Guide Save $600+

Home Depot Tool Rental Directory →

Don't buy expensive machinery for a 2-day build. Rent these heavy tools and buy the basics:

Recommended to Rent:

Pneumatic Framing Nailer + Compressor (~$38/day)
Plate Compactor for gravel pad (~$65/day)
Post-Hole Digger / Auger (if setting pier posts)

Recommended to Buy (Keep forever):

Speed Square & 25' Tape Measure (~$20)
4-Foot Magnetic Level (~$32)
Chalk Line & Safety Glasses (~$12)

Shed Building FAQs

How many 2×4 studs do I need to build a 10×12 shed?

With the default 10 × 12 ft gable configuration and 8-ft assembled walls, this model budgets 50 eight-foot wall-stud boards including corner/door framing and 10% reserve. Gable infill and door braces are separate. Plates are six 12-ft boards and six 10-ft boards. Quantities change with the selected assembly.

Should shed walls be framed at 16 inches or 24 inches on-center?

Use the spacing required by your project plans, panel span ratings and local loads. This calculator changes quantities for 16-in or 24-in spacing; selecting either option does not establish structural adequacy.

Is it cheaper to build a shed from scratch or buy a pre-cut kit?

Compare current supplier quotes for the same scope. Kits may exclude a floor, foundation, roofing or delivery. This estimator uses reference material allowances and does not calculate labor or guarantee savings.

Do I need hurricane ties or wind brackets on a backyard shed roof?

The optional package estimates one H2.5A per roof-to-wall bearing and ten approved connector screws per tie, rounded to 100-count boxes. Whether those connectors satisfy a project depends on the plans, loads and manufacturer instructions; generic structural screws are not interchangeable.

What is the best foundation for a backyard shed?

The skid estimate assumes ground-contact runners supported on leveling blocks, with floor joists bearing directly on runners. Gravel/site work and anchoring to the ground are excluded. The concrete option is a lump-sum 4-in slab material allowance, not a foundation design or contractor quote. Choose the actual foundation from site-specific plans.

What size shed can I build without a building permit?

Permit exemptions, zoning setbacks, anchoring and foundation requirements vary by location and use. Confirm the applicable requirements with your local building department before relying on any shed size or foundation assumption. The calculator does not decide whether a permit is required.

Planning your project

How shed material quantities and costs are estimated

Start with the shed footprint, assembled low-wall height, spacing, roof, exterior, foundation and door options. The material list changes with the selected assembly. This is a preliminary purchasing estimate; structural sizing, connections and local requirements need project-specific plans.

Footprint, framing and roof area

Floor area (sq ft) = width in feet × length in feet
Wall perimeter (ft) = 2 × (width in feet + length in feet)

Wall framing accounts for the selected stud spacing, corner/door allowances and roof-related wall geometry. Plates are purchased separately in stock lengths for each wall direction. An assembled 8-ft wall includes the plates; its base studs are cut to 91.5 inches in this model.

Roof materials use the selected roof geometry and overhangs rather than the floor footprint alone. Roofing and sheathing are rounded to the modeled package sizes, with applicable reserves. Gambrel estimates remain incomplete because truss geometry, bottom chords and connections require separate design and pricing.

Material costs and whole packages

Line cost ($) = purchase quantity × reference price per purchase unit ($)
Material total ($) = sum of the rounded line costs ($)
Cost per sq ft ($/sq ft) = material total ($) ÷ floor area (sq ft)

The list uses purchasable boards, sheets, bundles and hardware packages. Foundation choices represent different assemblies: skids include a modeled subfloor platform, while concrete uses a lump-sum slab material allowance. Labor, delivery, permits, site preparation and ground anchoring require separate allowances.

Worked example: a 10 ft × 12 ft gable shed

Inputs: 8-ft assembled low walls, 16-inch wall stud spacing, 24-inch rafter spacing, 6-inch overhangs with soffits, T1-11 panel siding, skids on blocks, one 3-ft DIY door and optional hurricane ties off.

Shed example: selected takeoff quantities and total
Material or measure	Calculated need	Purchase allowance
Floor footprint	120 sq ft	Modeled skid-supported floor platform
Base wall studs	91.5-inch cut length	50 × 8-ft boards; gable infill and door bracing are separate
Roof surface	Approximately 150.74 sq ft	6 roof-sheathing sheets and 5 shingle bundles; starter/cap materials are separate
Estimated materials	Reference allowances for this assembly	$2,479.25 · approximately $20.66/sq ft

The Common Shed Build Estimates table uses 24-inch wall stud spacing, so its figures differ from this 16-inch-stud example. Review all category notes and any incomplete-estimate warnings before buying. Plans, span ratings and local requirements determine whether an assembly is suitable.

Worked examples use fixed inputs and reference material allowances checked October 29, 2026. Your estimate changes with the inputs and product details. Labor, tax and delivery are excluded.

Small tiles.
Big possibilities.

Estimate Tile and Grout Materials and Costs

Calculate tile boxes, grout and thinset mortar for walls or floors. Combine multiple areas, set joint width and product coverage, and download a material-cost PDF.

1

Measure

Enter the dimensions of your project.

Project surface

Water exposure

Use one surface and exposure setting for all areas in this estimate. For different conditions or products, make separate estimates.

Area 1

Area length (ft)

Area width (ft)

Subtract cutouts (optional)

Cutouts in this area (sq ft)

2

Choose tile

Choose the materials for your project.

Tile size

For sheet options, the size is each chip—not the full sheet. Enter the total square feet per box below.

Grout Line Width

Optional grout estimate settings

We use a 3/8-inch tile-thickness allowance for grout. You can leave this as-is, or enter your tile's thickness for a closer estimate. This assumes full-depth joints; actual grout coverage varies.

Tile thickness for estimate (in)

3

Plan purchase

Set your preferences for purchasing.

Waste / extra

Sq ft per box

Price per sq ft ($)

Mortar estimate settings

Bagged thinset mortar in 50-lb bags. Premixed adhesive requires a separate estimate.

Mortar coverage

Order area35.2 sq ft32 sq ft area + 3.2 sq ft waste (10%)

Buy8 Boxes120 sq ft purchased

Estimated materials

Estimate assumptions & exclusions

Reference material prices only; verify product coverage and current supplier prices before buying. Labor, tax and delivery are excluded.

Tile count ~60 tiles

Thinset Mortar 3 Bags 50-lb bags

Grout Needed 18 lbs Selected grout-line width

Tile Materials Estimate

Tools & Accessories Commonly Needed

Check what you already own before shopping. These tools and accessories are additional to the material total above.

Common tools

Tape measure, tile marker, level and straightedge
Notched trowel matched to the selected mortar and tile; margin trowel
Mixing bucket and mixing tool approved for the product
Tile cutter or suitable wet saw; nippers or a tile hole saw for detailed cuts
Grout float, grout sponge and clean-water buckets

Accessories to check

Tile spacers for the selected joint width
Leveling clips and wedges if appropriate for the tile and system
Wall-tile supports or a ledger, where suitable for the installation
Edge profiles and compatible flexible sealant for movement joints
Gloves, eye protection and other protection specified by the product or tool instructions
Knee pads for floor work; surface protection and cleanup supplies

Consider renting a wet saw for a one-time project. Backer board, waterproofing and substrate preparation depend on the assembly and are also priced separately.

Planning your project

How to calculate tile, grout and mortar needs

Add the net square footage of every area using the same tile and product specifications. Estimate tile, grout and mortar separately: tile cutting waste is different from grout or mortar application reserve.

Tile coverage, pieces and boxes

Net area: add each area’s length in feet × width in feet, then subtract its cutouts.
Order target: net area in sq ft × (1 + waste percentage ÷ 100). A 10% allowance uses a multiplier of 1.10.
Approximate individual tile count: round up the order target in sq ft ÷ ((tile width in inches × tile length in inches) ÷ 144).
Boxes to buy: round up the order target in sq ft ÷ the square feet covered by one box.

The calculator offers 10%, 15% and 20% extra tile. Choose an allowance for the actual layout, cuts and spare pieces; a pattern does not have one universal waste rate. For mounted mosaics, individual chip dimensions drive grout use, while the box’s stated coverage drives purchasing. Approximate tile counts are not a layout or carton piece count.

Grout weight and package size

Grout use depends on tile/chip size, joint width, filled joint depth and the selected grout. Where available, this calculator uses Polyblend Plus manufacturer coverage tables and scales for the entered depth. Other size combinations use an approximate model calibrated to those tables.

Grout needed (lb) = net area (sq ft) ÷ published coverage (sq ft per package) × package weight (lb) × 1.10

Use coverage for the matching tile, joint and depth. For 12″ × 12″ × ⅜″ tile with ⅛″ joints, the reference is 348 sq ft per 25-lb bag of sanded grout. This example needs 100 sq ft ÷ 348 sq ft per bag × 25 lb per bag × 1.10 = 7.90 lb. The calculator prices 7-lb packs, so it budgets two packs. Product compatibility and actual coverage should be confirmed before buying.

Wall or floor, dry or wet

Wall/floor and dry/wet settings provide application guidance. The same bag formula applies to both orientations. Mortar product, trowel and application conditions determine coverage; changing surface or exposure alone does not apply a quantity multiplier. Wet-area contact coverage is not an extra-material percentage.

Thinset mortar bags

Mortar bags = round up (net area in sq ft × 1.10 ÷ coverage in sq ft per 50-lb bag)

Open Mortar estimate settings to enter the published square feet per 50-lb bag for your chosen product and trowel. Suggested mode keeps the tile-size-based allowance. The estimate includes 10% application reserve, and bag quantities always round up. Bagged thinset is estimated; premixed adhesive needs separate product-specific coverage.

For this 12″ tile example, the calculator uses 60 sq ft per 50-lb bag with a ¼″ × ⅜″ × ¼″ square-notch trowel, the lower end of the published VersaBond coverage range. The trowel and mortar must suit the tile and substrate. Back-buttering or uneven surfaces can increase use.

Worked example: 100 sq ft of 12″ × 12″ tile

Inputs: 10 ft × 10 ft, no cutouts, 10% tile waste, ⅜″ tile thickness, ⅛″ grout joints, 15 sq ft per box and tile priced at $3.80/sq ft.

Tile example: material need and whole packages
Material or measure	Calculated need	Purchase allowance
Tile	110 sq ft order target; approximately 110 tiles	8 boxes covering 120 sq ft · $456.00
Sanded grout	7.90 lb including 10% reserve	2 × 7-lb packs · $36.00
Thinset mortar	110 sq ft application allowance	2 × 50-lb bags · $44.00
Estimated materials	Reference prices for this example	$536.00

Tile coverage includes cutting waste; grout and mortar use the installed area plus their own 10% application reserve. Backer board, waterproofing, substrate repair, trim, movement-joint sealant and tools require separate allowances.

Coverage sources: CUSTOM Polyblend Plus sanded grout coverage and CUSTOM VersaBond mortar coverage.

Worked examples use fixed inputs and reference material allowances checked October 29, 2026. Your estimate changes with the inputs and product details. Labor, tax and delivery are excluded.

Tile project questions

How many boxes of tile do I need for several walls or floors?

Add each rectangular area and its cutouts. The calculator combines net square feet, adds your tile waste allowance and rounds up using the square feet covered by one box. Use a separate estimate for different tile products or installation conditions.

Does a shower wall need a different mortar calculation?

The bag formula is the same, but the mortar and assembly must suit the tile, wall and wet conditions. Choose Wall and Wet area for guidance, then enter the published square feet per 50-lb bag for your product and trowel. Waterproofing is a separate allowance.

Does grout joint width change how much grout I buy?

Yes. Tile/chip dimensions, joint width and filled depth affect grout use. The calculator estimates pounds, then rounds up to the stated grout package size. Mounted-mosaic grout uses chip dimensions, while tile purchases use box coverage.

Fresh floors.
Happy feet.

Estimate Flooring and Trim Materials and Costs

Estimate flooring boxes, your chosen floor trim, optional underlayment and doorway transitions for a rectangular room. Account for cutting waste and download a material-cost PDF.

1

Measure

Enter the dimensions of your project.

Room Length (ft)

Room Width (ft)

2

Choose flooring

Choose the materials for your project.

Flooring Type

Waste Factor

Sq Ft / Box

Price / Sq Ft ($)

3

Finishing touches

Set your preferences for purchasing.

Floor trim

Quarter round is optional. Choose the profile your installation needs; existing baseboards may already cover the required expansion gap.

Trim piece length (ft)

Trim price per piece ($)

$11.00 is a starting allowance per piece. Enter the price for your chosen profile and length.

Doorway Transitions

Budget for Approved Underlayment

Only include separate underlayment when approved for your flooring and subfloor, especially with attached-pad products. Moisture barriers are priced separately.

Order area246 sq ft10% plank cut allowance

Buy13 Boxes260 sq ft purchased

Estimated materials

Estimate assumptions & exclusions

Material quantities and reference allowances for the selected options. Review the scope below before ordering.

Underlayment 3 Rolls 100 sq ft rolls

Quarter round 60 ft Full perimeter +10% cuts

Flooring Materials & Trim List

Planning your project

How to estimate flooring and trim materials

Measure a rectangular room in feet, then use the actual coverage and price printed on the flooring box. This calculator estimates a floating installation using one flooring product.

Flooring area and whole boxes

Room area (sq ft) = length in feet × width in feet
Order target (sq ft) = room area (sq ft) × (1 + waste percentage ÷ 100)
Boxes = round up (order target in sq ft ÷ coverage in sq ft per box)

Material cost uses the purchased coverage after rounding to whole boxes. For example, a 246.4-sq-ft target can require buying 260 sq ft. Choose the cutting allowance for your layout and follow the flooring manufacturer’s instructions.

Floor trim, transitions and underlayment

Room perimeter: 2 × (length in feet + width in feet).
Trim pieces: round up (perimeter in feet × 1.10 ÷ selected piece length in feet). Choose quarter round, shoe molding, new baseboards or no new trim. Full perimeter is used without deducting doorways; verify your cuts.
Transitions: one strip allowance per entered doorway. Confirm the profile and actual length required.
Optional underlayment: round up (room area in sq ft × 1.05 ÷ 100 sq ft per roll) for the calculator’s 100-sq-ft rolls.

Separate underlayment is a budget option. Buy it only if approved for the specific flooring and subfloor, including products with attached pads. Moisture barriers and expansion gaps follow the product instructions.

Worked example: a 16 ft × 14 ft room

Inputs: click-lock LVP, 10% extra flooring, 20 sq ft per box at $2.99/sq ft, quarter round in 8-ft pieces at $11 each, two doorway transitions and approved underlayment included.

Flooring example: material need and whole packages
Material or measure	Calculated need	Purchase allowance
Flooring	224 sq ft room; 246.4 sq ft order target	13 boxes covering 260 sq ft · $777.40
Quarter round / shoe molding	60 ft perimeter; 66 ft with cuts	9 × 8-ft pieces, 72 ft purchased · $99.00
Underlayment	235.2 sq ft with 5% reserve	3 × 100-sq-ft rolls · $126.00
Doorway transitions	2 doorway allowances	2 strips · $48.00
Estimated materials	Reference prices for this example	$1,050.40

The estimate excludes subfloor repair or leveling, moisture testing, separate vapor barriers, trim removal/preparation, installation adhesives/fasteners and tools. New baseboards are included only when selected. Nail-down and glue-down installations require a different materials plan.

Worked examples use fixed inputs and reference material allowances checked October 29, 2026. Your estimate changes with the inputs and product details. Labor, tax and delivery are excluded.

Flooring and trim questions

How many flooring boxes do I need with 10% extra?

Multiply room length in feet by room width in feet, then multiply the square-foot area by 1.10. Divide by the square feet per box and round up. Cost uses the whole boxes purchased, which may exceed the order target.

Which floor trim does this calculator include?

Choose quarter round, shoe molding, new baseboards or no new trim. The selected profile uses the full room perimeter plus 10% for cuts, rounded to your entered stock length. Each doorway adds one separate transition allowance. Baseboard shape and expansion-gap coverage must suit the selected flooring.

Should I buy underlayment for flooring with an attached pad?

Only if the flooring manufacturer approves it for that product and subfloor. The underlayment checkbox is a budget option. Separate moisture barriers and other installation-system requirements need their own allowances.

Smooth walls.
Fresh start.

Estimate Drywall and Mud Materials and Costs

Calculate drywall sheets, mud, tape and screws for individual walls or multiple rooms. Add ceilings or a thin skim coat and download a material-cost PDF.

1

Measure project

Choose whole rooms or individual walls, then add each area.

Estimate by

Room 1

Room Length (ft)

Room Width (ft)

Wall height

Doors / windows

Include Ceiling Drywall

2

Choose panels

Choose the materials for your project.

Sheet Size

3

Finishing options

Set your preferences for purchasing.

Include full-surface skim

Default joint finishing: tape coat + two finishing coats on joints. Select this option to add one thin skim coat over the selected walls and ceiling; extra coats or texture leveling need more material.

Net surface584 sq ftApprox. net walls + ceiling

Buy20 Sheets4 × 8 ft; gross area +10%

Estimated materials

Estimate assumptions & exclusions

Reference material prices only; verify product coverage and current supplier prices before buying. Labor, tax and delivery are excluded.

Joint Compound 2 Buckets 4.5-gal bucketsJoint finishing only

Drywall Screws 2 Boxes 1-1/4" (1000-count boxes)

Drywall & Finishing Supply List

Planning your project

How to calculate drywall sheets, compound and tape

Choose Whole rooms for all four walls of each rectangular room, with a ceiling option per room. Choose Individual walls for only the wall faces you need. Add each surface once; all selected areas use the same sheet size and finish option.

Gross surface, cutouts and panel purchases

Room walls (sq ft) = 2 × (length in feet + width in feet) × height in feet
Selected room ceiling (sq ft) = length in feet × width in feet
Individual wall (sq ft) = wall length in feet × wall height in feet
Sheets = round up (combined gross surface in sq ft × 1.10 ÷ sheet area in sq ft per sheet)

Dimensions are in feet. A 4-ft × 8-ft sheet covers 32 sq ft; a 4-ft × 12-ft sheet covers 48 sq ft. Gross surface drives panel purchasing because a door or window cutout may not save a usable sheet. The net finishing surface subtracts 18 sq ft per entered room opening, or the actual cutout area entered for an individual wall. Confirm a panel layout, especially across separate walls or rooms.

Joint coats and the optional skim

Default joint finishing means a tape coat plus two finishing coats on joints. It does not mean three coats over the whole wall. The reference compound allowance is 9.4 US gallons per 1,000 sq ft of net surface, plus 10% reserve, following the USG Midweight product coverage rate.

Joint compound (US gal) = net surface in sq ft × 9.4 US gal ÷ 1,000 sq ft × 1.10
Optional thin skim (US gal) = net surface in sq ft × 0.5 US gal ÷ 100 sq ft × 1.10
4.5-US-gal pails = round up ((joint compound in US gal + skim compound in US gal) ÷ 4.5 US gal per pail)

The skim option adds one thin full-surface coat over the selected surfaces. Its 0.5-gal/100-sq-ft rate is this calculator’s planning allowance for smooth new board, not manufacturer-guaranteed skim coverage. Thick leveling coats, texture repair and extra passes need more compound. Joint and skim compound are combined before rounding, so skim may fit within pails already needed.

Tape and screw allowances

Tape uses 370 ft per 1,000 sq ft of net surface plus 10%, rounded to 500-ft rolls. Screws use a planning allowance of 1.25 per sq ft plus 10%, rounded to whole screws and then 1,000-count boxes. Actual fastening requirements depend on framing and the selected panel assembly.

Worked example: two 10 ft × 8 ft walls

Inputs: Individual walls, two walls each 10 ft long and 8 ft high, zero cutouts, 4-ft × 8-ft sheets and no skim coat.

Drywall example: material need and whole packages
Material or measure	Calculated need	Purchase allowance
Drywall panels	160 sq ft gross; 176 sq ft with cutting reserve	6 sheets measuring 4 ft × 8 ft · $99.00
Joint compound	1.65 gal including 10% reserve	1 × 4.5-gal pail · $21.00
Paper joint tape	65.12 ft including 10% reserve	1 × 500-ft roll · $9.00
Drywall screws	220 screws including 10% reserve	1 × 1,000-count box · $18.00
Estimated materials	Reference prices for this example	$147.00

Adding the thin skim increases compound to approximately 2.53 gal in this example, which still fits in one 4.5-gal pail. The purchase cost stays unchanged. Outside-corner bead, adhesives, special rated assemblies, texture, primer, paint and tools require separate allowances. Confirm ceiling panel suitability and framing requirements.

Manufacturer reference: USG Midweight joint compound application and coverage. Tape and screw purchase sizes are the calculator’s stated package assumptions.

Worked examples use fixed inputs and reference material allowances checked October 29, 2026. Your estimate changes with the inputs and product details. Labor, tax and delivery are excluded.

Drywall project questions

Can I estimate drywall for just one or two walls?

Yes. Choose Individual walls and add each wall length and height in feet, plus its cutout area in square feet. The calculator combines the selected surfaces before rounding to whole sheets and consumable packages.

Can I calculate drywall for two rooms with different ceiling options?

Yes. Choose Whole rooms and add each rectangular room. Set dimensions, opening counts and the ceiling checkbox separately for every room. All areas in one estimate use the same sheet size and skim selection.

Why does adding a full-surface skim sometimes leave the price unchanged?

The skim adds compound, but the combined quantity can fit within pails already needed for joint finishing. Joint and skim gallons are combined before rounding to 4.5-US-gal pails. The result explains the extra material and whether another pail is needed.

Estimate Shed Materials and Costs

Size & framing

Roof & exterior

Foundation & openings

Estimate assumptions & exclusions

Detailed Materials & Cost Breakdown

Email Me This Itemized Shopping Checklist

Need Complete 3D Blueprints & Cut Diagrams?

Common Shed Build Estimates

Compare to Pre-Fab Shed Kits

Rent vs. Buy Tool Guide Save $600+

Shed Building FAQs

How shed material quantities and costs are estimated

Footprint, framing and roof area

Material costs and whole packages

Worked example: a 10 ft × 12 ft gable shed

More DIY project calculators

Estimate Tile and Grout Materials and Costs

Measure

Choose tile

Plan purchase

Estimate assumptions & exclusions

Tile Materials Estimate

Tools & Accessories Commonly Needed

Common tools

Accessories to check

How to calculate tile, grout and mortar needs

Tile coverage, pieces and boxes

Grout weight and package size

Wall or floor, dry or wet

Thinset mortar bags

Worked example: 100 sq ft of 12″ × 12″ tile

Tile project questions

More DIY project calculators

Estimate Flooring and Trim Materials and Costs

Measure

Choose flooring

Finishing touches

Estimate assumptions & exclusions

Flooring Materials & Trim List

How to estimate flooring and trim materials

Flooring area and whole boxes

Floor trim, transitions and underlayment

Worked example: a 16 ft × 14 ft room

Flooring and trim questions

More DIY project calculators

Estimate Drywall and Mud Materials and Costs

Measure project

Choose panels

Finishing options

Estimate assumptions & exclusions

Drywall & Finishing Supply List

How to calculate drywall sheets, compound and tape

Gross surface, cutouts and panel purchases

Joint coats and the optional skim

Tape and screw allowances

Worked example: two 10 ft × 8 ft walls

Drywall project questions

More DIY project calculators

Get the Printable Lumber Checklist