Player.Modav Carryweight [Number] 

Skyrim Console Command
Command Player.Modav Carryweight [Number] 
Description Set carry weight.
Command Category
How to Use
Example The command <command>player.modav carryweight 100</command> increases the maximum weight you can carry by 100.
General Console commands are not case sensitive, so a lowercase a is the same as an uppercase A. Variables are inside brackets, [ ]. These are meant to be replaced with the quantity or ID you want.
How to Open the Skyrim Command Console To open the console by press the <span class="key">~</span> key, which is to the right of the <span class="key">1</span> key and below the <span class="key">Esc</span> key. Type in the command and then press the <span class="key">Enter</span> key.