OSRS Boat Upgrade Calculator

The three boats

The Pandemonium quest gives you a raft. A skiff can be bought from a shipwright at 15 Sailing and a sloop at 50, and you can own a second boat at 15, a third at 50, a fourth at 78 and a fifth at 91. Every new boat comes with a wooden hull, a bronze helm, a wooden mast and linen sails, a bronze keel on a skiff or sloop, and no facilities. Only a skiff can race the Barracuda Trials, and only a raft fits some of the narrow waters sea charting sends you to.

Hulls

The hull sets the boat's hitpoints, speed and defence. A raft hull is logs, rope and swamp tar; a skiff takes 10 hull parts and a sloop 16 large hull parts, made at a shipwrights' workbench from 5 planks or 5 hull parts each. Hitpoints and coins read raft, skiff, sloop.

Keels

A skiff or sloop keel adds hitpoints and armour, and every 100 armour takes 1 off every hit the boat takes. An adamant keel or better lets you sail the crystal-flecked waters off Tirannwn. Keel parts are smithed from 5 bars, or 2 dragon metal sheets, and large keel parts from 5 keel parts. Hitpoints and coins read skiff, sloop.

Helms

A stronger helm takes the boat through rapids for a burst of speed instead of damage: gentle rapids from iron, strong from mithril, powerful from rune and deadly from dragon. Adamant and better ignore tangled kelp. Coins read raft, skiff, sloop.

Masts and sails

Better sails make a wind boost last longer, and from camphor the boat accelerates twice as fast. Oak and better sail through the Storm Tempor without damage, and camphor and better shrug off its lightning. Trimming the sails pays Sailing experience by their tier. The boost is in game ticks; coins read raft, skiff, sloop.

The eternal brazier, from 78 Sailing and 72 Construction, lets any boat cross the icy seas of the Northern Ocean. Flags, trims and sail patterns change only how the boat looks: a flag needs the fabric roll from the Marlin rank of its Barracuda Trial, a trim is 1 paint on a skiff and 2 on a sloop, and a coloured sail is 10 dye.

Facilities

Facilities go on the boat's hotspots: a raft has 1, a skiff 7 and a sloop 13, and each hotspot takes only certain kinds. The cargo hold and the inoculation station each have a hotspot of their own on a skiff or sloop, a sloop can carry two cannons and two hooks or nets, and a boat holds one crystal extractor and one chum spreader. Trawling nets and chum stations cannot go on a raft.

Boat upgrade questions

What should I upgrade first? It depends on what the boat is for. The hull sets most of its speed and hitpoints, and the helm decides which rapids speed you up instead of hurting you, so a courier or trials skiff wants the best of both. For trawling the hull matters more than sails past camphor. The build order above lists your plan by the level each part needs.

Is it cheaper to make the hull and keel parts? Tick the box above to price your plan from planks and bars instead of bought parts; the note under the totals gives the other figure at today's prices. Making them pays Construction or Smithing experience as well.

What is a good salvaging boat? A sloop with two of the best hooks you can build, a salvaging station, a crystal extractor and the best cargo hold. The salvaging sloop above is the build the OSRS Wiki suggests, and the Sailing calculator times shipwreck salvaging by hook.

How much does it cost to repair a boat? Shipwright Seb charges 50 coins a hitpoint, and a repair kit heals 5 to 50 depending on its wood. A crewmate repairing with a kit heals a little more, by their deckhandiness.