Lumber & Timber Calculator
Calculate lumber quantities for framing, decking, and fencing. Convert between linear meters, board feet, and piece counts.
Actual: 38mm × 89mm
Typical: 5-10% straight cuts, 15-20% complex framing
Enter lumber specifications to calculate quantities
ESTIMATION NOTICE
This calculator provides APPROXIMATE QUANTITIES for budgeting and planning purposes.
Please note:
• Results include standard wastage factors but actual waste may vary based on site conditions, workmanship, and material quality.
About This Calculator
The Lumber & Timber Calculator helps contractors and carpenters estimate wood quantities for construction projects across the UAE and Gulf. Calculate lumber requirements for formwork, temporary structures, decking, fencing, and wooden framing. Convert between linear meters, board feet, and piece counts with volume and weight calculations. Essential for material procurement and cost estimation for timber-intensive construction activities.
When to Use This Calculator
- Estimating timber for concrete formwork systems
- Calculating lumber for temporary site structures
- Planning wood requirements for decking and pergolas
- Specifying timber for fencing and hoarding
- Converting lumber measurements between metric and imperial
How to Use This Calculator
Select Calculation Type
Choose: formwork timber, structural framing, decking, or fencing application.
Enter Dimensions
Input project dimensions (area, length, or piece count required).
Specify Timber Size
Select lumber dimensions: 50×100mm, 50×150mm, 50×200mm, or custom sizes.
Set Spacing & Wastage
Enter member spacing (for framing) and wastage percentage (typically 10-15%).
Calculate Results
Get piece count, linear meters, board feet, volume in m³, and weight in kg.
Typical Scenarios in UAE & Gulf Projects
A high-rise requires traditional timber formwork for 500m² slab soffit using 50×100mm joists at 400mm spacing and 50×150mm primary beams. The calculator estimates 1,250 linear meters of joists, 200m of beams, totaling 12.5m³ timber, weighing approximately 6,250kg with 15% wastage.
A residential villa needs a 30m² timber pergola using 100×100mm posts and 50×200mm rafters. Calculator determines: 8 posts at 2.4m = 19.2m, 12 rafters at 4m = 48m, plus 60m of 50×100mm purlins, totaling 2.1m³ treated timber for outdoor Gulf conditions.
Frequently Asked Questions
Take Your Calculations Further
This calculator reflects the logic built into Arkan's construction management platform.
Last Updated: January 2026
Standards Reference: Timber specifications per BS EN 336 and ASTM D198