Framing Calculators — Construction
Frame a structure to code with span and material tools. The joist span and beam span calculators size lumber against load and distance, the header size and truss calculators handle openings and roof loads, and the plywood sheets and tray ceiling framing tools estimate sheathing and layout. Each applies standard framing tables and formulas, helping builders and DIYers order the right lumber and pass inspection.
All Framing Calculators
Determine maximum beam span from lumber grade, load, and beam dimensions.
Determine the required header size for window and door openings based on span and load.
Determine maximum joist span from lumber size, spacing, species, and load requirements.
Calculate the number of plywood sheets needed for flooring, walls, or roof sheathing.
Calculate framing materials for a tray or coffered ceiling from room dimensions.
Calculate truss dimensions, member lengths, and angles from span and pitch.
About Framing Calculators
Frame a structure to code with span and material tools. The joist span and beam span calculators size lumber against load and distance, the header size and truss calculators handle openings and roof loads, and the plywood sheets and tray ceiling framing tools estimate sheathing and layout. Each applies standard framing tables and formulas, helping builders and DIYers order the right lumber and pass inspection.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common framing scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 6tools: Beam Span Calculator, Header Size Calculator, Joist Span Calculator, Plywood Sheets Calculator, Tray Ceiling Framing Calculator, Truss Calculator. Each calculator is free to use with no signup required.