Construction Calculator

Free online construction calculator for estimating materials, costs, and measurements. Calculate concrete, lumber, drywall, and more.

Length (feet)

Width (feet)

Depth (inches)

Mix Strength

Concrete Needed

0 cubic yards

80lb Bags

60lb Bags

Est. Cost

Wall Length (feet)

Wall Height (feet)

Stud Spacing

Stud Size

Lumber Needed

0 studs

Board Feet

Top/Bottom Plates

Est. Cost

Room Length (feet)

Room Width (feet)

Room Height (feet)

Sheet Size

Drywall Needed

0 sheets

Square Feet

Joint Tape (ft)

Est. Cost

Wall Length (feet)

Wall Height (feet)

Number of Walls

Coats

Paint Needed

0 gallons

Square Feet

Quarts

Est. Cost

Room Length (feet)

Room Width (feet)

Flooring Type

Waste Factor

Flooring Needed

0 sq ft

Boxes (20 sq ft)

With Waste

Est. Material Cost

Roof Length (feet)

Roof Width (feet)

Roofing Material

Roof Pitch

Roofing Needed

0 sq ft

Roofing Squares

Bundles/Squares

Est. Cost

Construction Tips

Always add 10-15% for waste and cuts

Order materials at the same time for batch discounts

Check local codes for material requirements

Get multiple contractor quotes for labor

Consider delivery costs in your estimate

Allow 5-10% extra for mistakes and replacements