10x20 Shed Material List

Quick Answer

A 10x20 gable shed with 8 ft walls, 16 inch on center framing, 4/12 roof pitch, pressure treated floor framing, OSB or plywood sheathing, a basic single door, and gravel foundation is a large storage structure often used for riding mowers, motorcycles, workshop space, or garage overflow.

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You will need:

• Heavy pressure treated lumber for the floor system
• 2x4 wall framing
• 2x6 roof framing for the wider span
• Floor, wall, and roof sheathing
• Panel or lap siding
• Asphalt shingles and underlayment
• Reinforced door framing materials
• Large quantities of fasteners and hardware

In 2026 pricing, expect a realistic total material cost of: $4,200 to $6,800

This assumes a gravel base and basic exterior finishes only.

Need a smaller option? See our 14x14 shed material list. Want a larger build? See our 12x18 shed material list.

Full Material List

Quantities assume 8 ft wall height, 16 inch on center spacing, and one standard single door opening.

Floor Framing

A 20 ft length significantly increases material requirements and weight capacity concerns.

Gravel Base

• 5 to 7 cubic yards of compacted 3/4 inch crushed gravel

Floor Frame (Pressure Treated)

Perimeter

• 2x8x20 PT – 2 (long rim joists)
• 2x8x10 PT – 2 (end band joists)

If 20 ft boards are unavailable, splice shorter boards over supports.

Floor Joists (16 inch OC across 10 ft span)

• 2x8x10 PT – 15 to 16

Floor Sheathing

• 3/4 inch tongue and groove plywood or OSB – 7 sheets

Fasteners

• Exterior screws or galvanized framing nails
• Joist hangers recommended

Wall Framing

Framed 16 inch on center.

• 2x4x8 studs
• 100 to 115 total
• Includes perimeter walls
• Door framing
• Extra for waste

Plates

• 2x4x20 – 6 (long walls, double top plates + bottom plates)
• 2x4x10 – 6 (end walls)

Splicing shorter boards over studs is acceptable when long lumber is unavailable.

Door Framing

• 2x6x8 – 2 (header material)
• 1/2 inch plywood spacer
• Jack and king studs included in stud count

Roof Framing

The 10 ft span typically requires 2x6 rafters for durability.

Rafters (4/12 pitch, 16 inch OC)

• 2x6x12 – 30 to 32

Approximately 15 to 16 rafter pairs.

Ridge Board

• 2x8x20 – 1

Collar Ties or Ceiling Ties

• 2x4x10 – 15 to 16

Sheathing

Wall Sheathing

• 7/16 inch OSB or plywood – 18 to 20 sheets

Panel siding may replace separate sheathing.

Roof Sheathing

• 7/16 inch OSB or plywood – 10 to 12 sheets

Siding

Panel siding is commonly used.

T1-11 or LP SmartSide Panels

• 18 to 20 sheets

Alternative siding systems will require additional trim and backing materials.

Roofing

Underlayment

• 2 rolls synthetic underlayment

Drip Edge

• 8 to 10 pieces (10 ft lengths)

Shingles

• Approximately 2 to 2.5 squares
• 7 to 10 bundles depending on waste

Roofing Nails

• 8 to 10 lb box

Hardware and Fasteners

• 16d framing nails or structural screws
• 8d nails for sheathing
• Exterior construction screws
• Construction adhesive (4 to 5 tubes)
• Hurricane ties recommended
• 2 to 3 heavy-duty door hinges
• Exterior handle and latch
• Lockset or padlock hardware
• Door header flashing

Estimated Cost Breakdown

Typical 2026 pricing ranges.

• Gravel Base: $300 to $600
• Pressure Treated Floor Framing: $800 to $1,300
• Wall Framing Lumber: $850 to $1,400
• Roof Framing Lumber: $600 to $1,000
• Sheathing (walls and roof): $1,100 to $1,700
• Siding: T1-11: $850 to $1,300; LP SmartSide: $1,400 to $2,200; Vinyl system: $1,900 to $3,000
• Roofing: $500 to $900
• Hardware and Fasteners: $220 to $450

Total Estimated Range

With basic panel siding: $4,200 to $5,600

With upgraded siding: $5,600 to $6,800

Costs increase significantly due to:

• Larger floor area (200 sq ft)
• Long wall spans requiring more studs and plates
• Wider roof area
• Higher sheathing coverage
• Stronger floor framing requirements
• Increased fastener usage
• Regional lumber pricing can heavily affect totals

If you want exact cut diagrams, printable framing layouts, and step-by-step blueprints for this 10x20 shed, detailed plans eliminate guesswork and reduce lumber waste.

Get the Complete 10x20 Shed Plans Here

Tools Required

Standard framing tools plus adequate workspace for long materials.

Essential tools:

• Circular saw
• Miter saw
• Drill and impact driver
• Framing hammer
• 4 ft or longer level
• Speed square
• Tape measure
• Chalk line
• Ladders
• Shovel and rake
• Plate compactor or heavy hand tamper

Helpful tools:

• Framing nailer
• Roofing nailer
• Laser level
• Sawhorses
• Clamps

Assistance is recommended for lifting long walls and roof components.

Step-by-Step Build Overview

High-level sequence only.

• Prepare and compact gravel base across full footprint.
• Build pressure treated floor frame and square carefully.
• Install floor sheathing.
• Frame walls on the ground including door opening.
• Raise walls with assistance, plumb, and brace.
• Install double top plates tying walls together.
• Install ridge board and rafters.
• Add collar ties or ceiling ties.
• Install roof sheathing.
• Install drip edge and underlayment.
• Install shingles.
• Install wall sheathing if required.
• Install siding.
• Build and hang door.
• Install trim and hardware.
• Check alignment and square frequently.

Common Mistakes

• Poor base preparation. Leads to uneven settling and structural problems.
• Using undersized floor joists. Causes floor bounce under heavy loads.
• Attempting to build alone. Large components are difficult and unsafe to handle solo.
• Underestimating material quantities. Delays construction and increases costs.
• Weak door framing. Leads to sagging or binding doors.
• Improper wall bracing during construction. Walls can shift or collapse before roof installation.
• Incorrect rafter spacing. Causes roof sheathing issues.

Is It Worth Building Yourself?

DIY material cost: $4,200 to $6,800

Typical prebuilt 10x20 shed delivered in 2026: $7,500 to $13,000

DIY savings can range from $3,000 to $6,000.

Consider:

• Build time of roughly 4 to 6 days with help
• Material delivery logistics
• Need for accurate framing
• Possible permit requirements

For homeowners comfortable with construction tasks, building yourself is usually financially worthwhile.

Get Exact Cut Diagrams and Printable Plans

This material list provides realistic quantities and cost expectations for a 10x20 shed.

It does not include:

• Exact rafter angle calculations
• Detailed wall framing layouts
• Header sizing details
• Precise overhang dimensions
• Optimized cut lists
• Printable construction diagrams

On larger sheds, layout errors can waste significant amounts of lumber and time.

Detailed blueprints with exact measurements, framing layouts, and printable cut sheets simplify construction, reduce waste, and help ensure structural accuracy.

For a one-time build, complete plans typically save more time and money than they cost by preventing mistakes and rework.

Get the Complete 10x20 Shed Plans Here