Originally posted by CountSprinkleDorf:

You can download Valheim+ on nexus mods and tweak that value. Valheim+ allows you to tweak the amount of rows in inventory space,and various other things, and allows you to change the weight capacity for your character. Ive always hated the very low weight capacity for your characters inventory. I would definitely recommend Valheim+ because of the QoL changes it provides.

+1 for Valheim Plus. It is a highly worthwhile mod, and has a ton of features that you can decide which ones you want, and how much they affect things.

Nothing kills an adventure faster than your bags being full 10 minutes after you left home, or not being able to carry even 1/5 of the ore you find, or seeing your weapons/tools break after just a couple minutes of use.

Have fun. Mod the game.