Fin Box Options
Futures, FCS, glass-ons, and single fins — what's right for your board.
The fin box (or lack of one, in the case of glass-ons) determines what fins you can use, how easily you can swap them, and how your board looks. This is a crucial choice that affects your whole surfing experience.
Modern Multiple-Fin Systems
Futures **How it works:** Fins click into a slot on the bottom of the board. Extremely easy to swap fins in seconds.
Aesthetics: Slot is visible on the bottom. Blake thinks Futures look best, especially in white.
Performance: Zero loss of performance. The connection is solid and responsive.
Cost: Mid-range add-on
Best for: Surfers who like switching between fin sizes and setups. Easy to travel with. Versatile.
Why you should care: Futures dominate the market because they're reliable, simple, and work great. No downside besides the visible slot.
FCS & FCS II **How it works:** Fin tabs slide into boxes along the rail. Different system than Futures with a different plug style.
Aesthetics: Less visible slot than Futures, but still visible on the rails.
Performance: Excellent, maybe slightly more feel than Futures depending on who you ask. Negligible difference for most surfers.
Cost: Mid-range add-on (similar to Futures)
Best for: Surfers who prefer the FCS feel or want to standardize their fin collection around FCS plugs.
Blake's personal use: He rides FCS II because of quick install and the fact he's standardized his quiver around it.
Single Fins (for Longboards & Gliders)
Long Box (~10.5") **What it is:** A single fin box designed for longer, more flexible fins.
Versatility: Accepts a wide range of fin sizes and styles. Better for experimentation and different conditions.
Best for: Most longboard and glider riders. Recommended.
Short Box (~8.5") **What it is:** A single fin box for shorter, stiffer fins.
Versatility: Limited to fins specifically made for short boxes. Less flexibility.
Best for: Only if you have a specific short-box fin you love. Not recommended as a default.
Blake's recommendation: Go long box for single-fin boards. You'll have way more options down the road.
Glass-On Fins
What it is: Fins are glassed directly onto the board with fiberglass cloth and resin. No removable fin box.
Aesthetics: Stunning. The fin is part of the board. Clean, integrated look. Can't beat it visually.
Performance: Excellent flex and feel. Some surfers swear glass-ons perform better because the fin is literally part of the board structure.
Versatility: Zero. Once glassed, you're stuck with those fins forever. You can remove them if needed, but you can't easily swap.
Cost: Usually middle-ground pricing
Best for: - Wall-hanging boards (you don't need to change fins) - Special boards you're building with specific fins in mind - Surfers who fall in love with a specific fin and don't want to change - Company signage boards
Reality check: Glass-ons look incredible but they're not practical for everyday boards. Good for special projects.
Blake's Recommendation
- Performance board: Futures or FCS II (easy swaps, no compromise) - Longboard/Glider: Single-fin long box (versatility) - Wall hanger / special build: Glass-on fins (aesthetics) - Budget consideration: Futures are standard and cost-effective
Most Lundquist boards come with Futures or FCS II because they're the practical choice for surfers who actually ride their boards.