Start with the access-route length
For a straight lane, divide the route length by eight because both available mat sizes are eight feet long. Then multiply by the number of mats needed across the route.
Basic formula
Route length ÷ 8 × mats across. Add 10–30% for turns, overlap, staging, and layout adjustments.
Example quantities
- 50-foot route: 7 mats one-wide or 14 mats two-wide before extras
- 100-foot route: 13 mats one-wide or 26 mats two-wide before extras
- 200-foot route: 25 mats one-wide or 50 mats two-wide before extras
Always round up. These figures are planning estimates rather than an engineered access design.
When to add more mats
- Turns and equipment maneuvering areas
- Loading, log-handling, or material staging zones
- Wider machines or routes requiring two mats across
- Soft, uneven, saturated, or sensitive ground
- Transitions between driveways, curbs, and lawns
Choose 3×8 or 4×8
The 3×8 ground protection mat is useful through gates and tight side yards. The 4×8 mat provides more coverage for primary lanes, turns, and working zones. Many crews combine both sizes.
Compare both ground mat sizes or use the interactive calculator.
Once you have a likely quantity, review the ground protection mat cost guide to compare current quantity tiers, freight factors, and estimated cost per job. Before the crew unloads, use the ground protection mat installation guide to plan transitions, turns, connections, and the first test pass.