How can I build things in Ark which are too heavy for me?

Solution 1:

Carry the light resources first, thatch, wood, stone, the stone should only way 90 or so pounds so you should be able to make it to the chest by the time you start to get over weight. If this does not work, make a chest in your general building area and transport the materials by as much as you can carry. You could also use tamed dinosaurs. I tamed a bronto with tranq darts, tranq arrows, a club and a slingshot. I also recommend farming and getting pigs for fertilizer.

Solution 2:

I do this all the time, you can overload yourself to just shy of double your maximum carrying capacity, so if you have 150 weight, you can carry about 300ish pounds before you can't put anything else in your inventory.

What you do is put all your resources into a dino (careful not to overload if they're coming with you) or storage bin, and once you've gathered all the resources, pull them all out of the bin/dino and craft away.

After it's done, the resources will be consumed and you're left with just the item, which for building materials is typically only 4 pounds.