Choosing The Correct Size Lag Bolts

  Treehouse Lag Bolts And Also How To Select The Correct Size LagBolts Threaded length on lag bolts will vary depending on the size of the bolt. Some of the shorter lengths will be fully threaded, where longer ones will only be partially threaded.This is the general rule for off the shelf lag bolt orders, but there are companies who will engineer to your own specifications, if you need a custom product.   Point to note; If you're not sure which length bolt you need for your specific purpose, you need to accurately measure. Lag bolt length is measured from under the head to the point of the bolt. Common diameter sizing; 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 1 inch diameter lag bolts and bigger are used for projects such as tree house building. This size large lag bolts still not big enough ? Looking for bigger sizes, they are available but not as common or off the shelf.  

Point to note; Lag bolt diameter measurements are always taken on the outside of the threads.

treehouse attachment bolts

TreeHouse Lagbolts

About treehouse lag bolts 1 inch diameter lag bolts or larger, as an example would be used in the construction of a tree house play den. Available in 12" lengths, these hex head bolts would have as standard 4" or 5" of coarse threading ( depending on the manufacturer ). These larger size bolts are often referred to as treehouse lag bolts. Depending on hardness of the tree species, then the predrill hole size is either 3/4" or 7/8", but again double check to ensure you get the correct treehouse lag bolts.    How to use lag bolts for a tree house   Trees are living things, they will grow and expand, so ensure that you choose the correct size large lag bolts. Further more as they are outdoors, they will be hit by rain, possibly snow and the trees are liable to sway & move in strong winds. Avoid using too many bolts ( or other types of fasteners ) in a small area of the tree. As it is living and breathing , the tree needs to self heal and recover from any damaged caused to it, so it's easier to do so from a small number of impact / puncture points. Another option for larger tree house projects is the Treehouse Attachment Bolts or TABs, which are even bigger in size and load baring strength. Depending on your own expertise, experience and budget, we'd suggest you consider speaking to a specialist company who construct these types of treehouses.    

Leave a Reply

Your email address will not be published. Required fields are marked *