Buy RS3 Asgarnian ale (barrel) (flatpack)
The Asgarnian ale (barrel) flatpack is a ready-to-assemble beer barrel for player-owned houses in RuneScape 3. It is a members-only Construction item that you can place on the beer barrel hotspot in your Kitchen while in building mode. Placing it needs no Construction level and gives no experience, so it is an easy way to add this barrel to your house.
Once built, the barrel gives you an unlimited supply of Asgarnian ale. Just use an empty beer glass on it to fill up. The ale cannot leave the house. It disappears if you teleport or step outside, and a servant will not bank it.
Making this flatpack yourself takes level 18 Construction and level 24 Cooking. It uses 3 oak planks, 8 Asgarnian ales, a hammer, and a saw, and it gives 184 Construction experience. Buying the flatpack skips those skill and material costs.
The item is tradeable and noteable, and it weighs 1 kg. After you finish the hard Fremennik achievements, you can also trade flatpacks to Advisor Ghrim to add 86 coins to your kingdom coffers in Miscellania.