A standard ten-pin bowling lane is 41.5 inches wide and consists of exactly 39 boards running the length of the lane. These boards are numbered 1 through 39 — and for a right-handed bowler, board 1 is on the right side (the edge closest to the right gutter) and board 39 is on the left side. Left-handed bowlers use the same numbering but work from the opposite side, with board 1 on the left.
The Numbering System
Board numbers increase from the gutter inward toward the center of the lane:
| Board number | Location | Significance |
|---|---|---|
| 1 | Right edge (near right gutter) | Far right — balls that drift here usually find the gutter |
| 7 | Right channel area | Right side spare target zone |
| 10 | 2nd arrow from right | Most common right-handed strike line target |
| 15 | 3rd arrow from right | Deeper inside line for heavy oil or less hook |
| 17–18 | Strike pocket entry | Where the ball should enter for right-handed strike |
| 20 | Center of the lane | Middle arrow — the "strike arrow" in simple parlance |
| 25 | 3rd arrow from left | Left-handed reference; right-hander rarely plays here |
| 35 | 2nd arrow from left | Far inside line or left-handed strike target |
| 39 | Left edge | Far left — near left gutter |
Why Board Numbers Matter
Every adjustment a competitive bowler makes is expressed in boards. "Move two boards right" is a precise, reproducible instruction that means shift your starting position two boards toward the right gutter. This produces a proportional shift in where the ball crosses the arrows and ultimately where it hits the pins.
The 2-for-1 and 3-for-2 adjustment rules are built on this system: if you move your feet 2 boards in one direction at the approach, your breakpoint (where the ball hooks) moves approximately 1 board in the same direction. This lets bowlers calculate precise corrections without guessing.
How to Find Your Board
If your bowling center has wood lanes, the boards are actual wood planks — you can count them from the gutter. If the lanes are synthetic (most modern installations), boards are usually marked by subtle color changes or texture lines in the synthetic surface, and the arrows and dots help you establish your position.
The easiest way to determine which board you're standing on: count from the edge of the approach/lane. Most bowlers establish a starting position like "left foot on board 20" and track it as a reference. Over time, board positions become instinctive.