24x40 Shed Material List

Quick Answer

A 24x40 gable shed with 8 ft walls, 16 inch on center framing, 4/12 roof pitch, pressure treated floor framing, OSB or plywood sheathing, and a large double door is a full workshop or garage-style structure. This size is typically used for multi-vehicle storage, commercial equipment, or a serious hobby shop and often requires permits and a stronger foundation.

See other shed material lists by size

You will need:

• Pressure-treated floor framing using 2x6 or 2x8 lumber
• Wall framing using 2x4 studs at 16 inch on center
• Roof framing with rafters or trusses
• OSB or plywood sheathing for walls and roof
• Large quantity of asphalt shingles or metal roofing
• T1-11 or similar siding panels
• Structural fasteners and framing hardware

Estimated 2026 material cost range: $12,000 to $20,000

Pricing varies by lumber costs, siding choice, roofing material, and foundation requirements.

Need a smaller option? See our 20x24 shed material list.

Full Material List

Quantities assume 8 ft wall height, 16 inch on center spacing, and a standard double door on one gable end.

Floor Framing

A 24 ft span is heavy and often requires beams, piers, or engineered support.

Gravel Base

• 18 to 22 cubic yards of compacted 3/4 inch crushed gravel

Floor Frame (Pressure Treated)

Perimeter

• 2x12x40 PT – 2 (long rim joists)
• 2x12x24 PT – 2 (end band joists)

Floor Joists (16 inch OC across 24 ft span)

• 2x12x24 PT – 30 to 32

Large spans typically benefit from beams or doubled joists.

Floor Sheathing

• 3/4 inch tongue and groove plywood or OSB – 30 to 32 sheets

Fasteners

• Exterior-rated screws or galvanized framing nails
• Heavy-duty joist hangers strongly recommended

Wall Framing

Framed 16 inch on center.

• 2x4x8 studs
• 260 to 300 total
• Includes perimeter walls
• Additional studs for corners and door framing
• Waste allowance

Plates

• 2x4x40 – 6 (long walls, double top plates + bottom plates)
• 2x4x24 – 6 (end walls)

Splicing shorter boards is common for long walls.

Double Door Framing

Typical opening: 72 to 96 inches wide.

• 2x12x8 – 2 (header material)
• 1/2 inch plywood spacer
• Jack and king studs included in stud count

Roof Framing

A 24 ft span typically requires 2x10 or 2x12 rafters or engineered members.

Rafters (4/12 pitch, 16 inch OC)

• 2x12x14 – 60 to 62
• Approximately 30 to 31 rafter pairs

Ridge Board

• 2x12x40 – 1

Collar Ties or Ceiling Joists

• 2x6x24 – 30 to 31

Sheathing

Large wall and roof areas require substantial panel quantities.

Wall Sheathing

• 7/16 inch OSB or plywood – 34 to 36 sheets
• Panel siding may eliminate separate sheathing

Roof Sheathing

• 7/16 inch OSB or plywood – 32 to 34 sheets

Siding

Panel siding is common for structures of this size.

T1-11 or LP SmartSide Panels

• 34 to 36 sheets

Alternative siding systems require additional trim and backing materials.

Roofing

Underlayment

• 4 to 5 rolls synthetic underlayment

Drip Edge

• 26 to 28 pieces (10 ft lengths)

Shingles

• Approximately 10 to 11 squares
• 30 to 33 bundles depending on waste

Roofing Nails

• 25 to 30 lb box

Hardware and Fasteners

• 16d framing nails or structural screws
• 8d nails for sheathing
• Exterior construction screws
• Construction adhesive (14 to 16 tubes)
• Hurricane ties strongly recommended
• Heavy-duty hinges (3 per door)
• Exterior double-door latch or lockset
• Padlock hardware
• Flashing for door header

Estimated Cost Breakdown

Typical 2026 pricing ranges.

• Gravel Base: $1,200 to $2,000
• Pressure Treated Floor Framing: $4,500 to $7,000
• Wall Framing Lumber: $2,400 to $3,600
• Roof Framing Lumber: $3,200 to $5,000
• Sheathing (walls and roof): $3,800 to $5,600
• Siding (T1-11): $2,600 to $3,800
• Siding (LP SmartSide): $4,200 to $6,200
• Siding (Vinyl system): $5,500 to $8,000
• Roofing: $2,200 to $3,400
• Hardware and Fasteners: $900 to $1,500

Total Estimated Range

With basic panel siding: $12,000 to $16,000

With upgraded siding: $16,000 to $20,000

Costs are driven by:

• Very large floor area (960 sq ft)
• Heavy structural members
• Extensive sheathing quantities
• Large roof surface area
• Reinforced door framing
• High fastener usage
• Delivery costs for long lumber

If you want exact cut diagrams, printable framing layouts, and step-by-step blueprints for this 24x40 shed, detailed plans eliminate guesswork and reduce lumber waste.

Get the Complete 24x40 Shed Plans Here

Tools Required

Standard framing tools plus equipment suitable for very large components.

Essential tools:

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

Helpful tools:

• Framing nailer
• Roofing nailer
• Laser level
• Sawhorses
• Clamps
• Material handling assistance

Multiple helpers are typically required.

Step-by-Step Build Overview

High-level sequence only.

• Prepare and compact gravel base across entire footprint.
• Build pressure treated floor frame and verify square.
• Install floor sheathing.
• Frame walls on the ground including double door opening.
• Raise walls with significant assistance, plumb, and brace securely.
• Install double top plates tying walls together.
• Install ridge board and rafters or trusses.
• Add collar ties or ceiling joists.
• Install roof sheathing.
• Install drip edge and underlayment.
• Install shingles or metal roofing.
• Install wall sheathing if required.
• Install siding.
• Build and hang double doors.
• Install trim and hardware.
• Frequent checks for square and level are critical at this scale.

Common Mistakes

• Using undersized framing for wide spans. Leads to structural sag.
• Poor base preparation. Causes uneven settling across the structure.
• Attempting to build without adequate help. Components are very heavy.
• Losing square over long distances. Causes roof and siding alignment issues.
• Underestimating materials. Leads to delays and additional costs.
• Weak door framing. Leads to sagging doors over time.

Is It Worth Building Yourself?

DIY material cost: $12,000 to $20,000

Typical prebuilt 24x40 shed delivered in 2026: $28,000 to $48,000

DIY savings typically range from $16,000 to $28,000.

Consider:

• Build time of roughly 12 to 20 days with assistance
• Handling very heavy materials
• Need for precise layout
• Permits, inspections, and zoning requirements

For experienced homeowners, building yourself can provide substantial savings.

Get Exact Cut Diagrams and Printable Plans

This material list provides realistic quantities and cost expectations for a 24x40 shed.

It does not include:

• Exact cut diagrams
• Detailed stud layouts
• Rafter angle calculations
• Printable blueprints

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

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

Get the Complete 24x40 Shed Plans Here