🪵 PRG 320 5-Ply / 7-Ply CLT Panels (3.5"-9.5" Thick), L/360 Live Load Deflection

Cross-Laminated Timber (CLT) Panel Sizing Calculator

Size mass timber Cross-Laminated Timber (CLT) floor and roof slab panels under ANSI/APA PRG 320 & NDS: calculate panel thickness (3-ply 4.1", 5-ply 6.9", 7-ply 9.6"), maximum allowable clear span (feet based on 50-100 PSF live load and L/360 deflection limits), vibration frequency (Hz), and mass timber contractor margins.

1. Project & Operating Inputs

Total CLT Floor Slab Area (Square Feet e.g. 45,000 Sq Ft)

Design Clear Span Length (Feet e.g. 20.0 ft Clear Span)

Customer Bid Price for Supplied & Erected CLT Panels ($ / Sq Ft)

5-Ply CLT Panels, Crane Rigging, Self-Tapping Screws & Crew ($ / Sq Ft)

2. Financial Breakdown & Yield

ANSI/APA PRG 320 CLT SIZING

Turnkey CLT Timber Package Profit

Mass Timber Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost