RIBs vs Inflatable Boats: Which Is Right for You?
Confused between a RIB and a soft-sided inflatable? This guide compares performance, durability, cost, and use cases to help you choose the right boat.
RIBs vs Inflatable Boats: Which Is Right for You?
Rigid Inflatable Boats (RIBs) and soft-sided inflatables are both popular choices for UK boaters — but they're designed for very different purposes. Understanding the differences will help you choose the right one for your needs.
What Is a RIB?
A RIB (Rigid Inflatable Boat) has a solid, rigid hull (usually fibreglass or aluminium) with inflatable tubes (sponsons) around the top. This combination gives RIBs excellent performance, stability, and seakeeping ability.
Key characteristics:
- Rigid hull for planing performance
- Inflatable tubes for buoyancy and stability
- Can handle rougher seas than soft inflatables
- Usually powered by an outboard engine
- Popular as tenders, safety boats, and recreational craft
What Is a Soft-Sided Inflatable?
A soft-sided inflatable (sometimes called an inflatable dinghy or sponson boat) has an entirely flexible hull — no rigid bottom. They're lightweight, packable, and designed for sheltered waters.
Key characteristics:
- Entirely inflatable — no rigid hull
- Lightweight and portable
- Can be deflated and stored in a bag or car boot
- Best for calm, sheltered water
- Usually powered by a small outboard or oars
Head-to-Head Comparison
| Feature | RIB | Soft Inflatable | |---------|-----|-----------------| | Performance | Excellent — planes easily | Limited — displacement only | | Rough water ability | Very good | Poor | | Portability | Needs trailer or roof rack | Packs into a bag | | Durability | High (rigid hull) | Moderate (vulnerable to punctures) | | Cost (used) | £2,000–£20,000+ | £300–£2,500 | | Engine size | 10–150 hp | 2–10 hp | | Best for | Coastal cruising, safety, watersports | Tenders, calm-water fun, fishing |
When to Choose a RIB
A RIB is the right choice if you:
- Want to cruise coastal waters and handle chop and swell
- Need a safety boat for a sailing club or event
- Plan to do watersports — waterskiing, wakeboarding, tubing
- Want a reliable tender that can carry people and gear in most conditions
- Need a boat that planes and travels at speed
Popular RIB sizes:
- 3.0–3.8 m: Small RIBs for tenders and day trips. £2,000–£8,000 used.
- 4.0–5.5 m: Family recreational RIBs. £5,000–£15,000 used.
- 6.0 m+: Offshore-capable RIBs for serious cruising. £10,000–£30,000+ used.
Browse RIBs and inflatables for sale on BoatBay.
When to Choose a Soft Inflatable
A soft inflatable is the right choice if you:
- Need a tender to get from a mooring to shore in calm water
- Want a portable boat you can keep in the car or a locker
- Plan to fish or potter on lakes, rivers, or sheltered estuaries
- Have limited storage and can't keep a rigid boat
- Want the lowest cost entry to boating
Popular inflatable types:
- 2.4–3.0 m roll-up: Small, packable, rowing or small outboard. £300–£800.
- 3.0–3.8 m air-floor: Inflatable keel/floor for better performance. £800–£2,500.
- Honwave / Zodiac / Avon: Trusted brands with good resale value.
Engine Considerations
For RIBs:
- 3.0–3.8 m: 10–20 hp (planes with 2 people)
- 4.0–5.5 m: 40–90 hp (good family performance)
- 6.0 m+: 90–150 hp (offshore capable)
For soft inflatables:
- 2.4–3.0 m: 2.5–6 hp (displacement speed)
- 3.0–3.8 m: 6–10 hp (may plane with one person if air-floor)
Durability & Maintenance
RIBs:
- Rigid hull is durable and repairable (GRP)
- Tubes can be Hypalon (premium, UV-resistant, 15+ year life) or PVC (budget, 5–8 year life)
- Check tube condition when buying — re-tubing costs £2,000–£5,000
- Annual antifoul if kept afloat
Soft inflatables:
- Vulnerable to punctures from sharp objects
- PVC fabric degrades in UV — keep covered when not in use
- Hypalon inflatables are more durable but more expensive
- Patch kits are cheap and repairs are straightforward
Cost Comparison
| | RIB (4 m, used) | Soft Inflatable (3 m, used) | |--|-----------------|------------------------------| | Boat | £4,000–£10,000 | £500–£1,500 | | Engine | £2,000–£5,000 | £500–£1,500 | | Trailer | £500–£1,000 | Not needed | | Total | £6,500–£16,000 | £1,000–£3,000 |
Which Should You Buy?
Buy a RIB if: you want performance, can store/trailer a rigid boat, and plan to use it in coastal or rougher waters.
Buy a soft inflatable if: you need a portable tender, want calm-water fun on a budget, or have no space for a rigid boat.
Both are excellent boats — they just serve different needs. Many boat owners eventually own both: a soft inflatable as a tender and a RIB for proper days out.
Browse RIBs and inflatables for sale on BoatBay to see current UK listings, or explore boats under £5,000 for budget-friendly options.
